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Artigos de revistas sobre o tema "Soils and nutrition"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 3 de março de 2023

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1

Naidu, R., and P. Rengasamy. "Ion interactions and constraints to plant nutrition in Australian sodic soils." Soil Research 31, no. 6 (1993): 801. http://dx.doi.org/10.1071/sr9930801.

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Many of the arable soils in Australia are affected by salinity and/or sodicity. Nutrient deficiency and ion toxicity may occur in both saline and sodic soils. Ho-ever, the mechanism for these constraints on plant growth in sodic soils differs from that of saline soils. Fertility of sodic soils with low nutrient reserves is compounded by the low supply of water and oxygen to roots in profiles with dispersive clays. Nutrient constraints in sodic soils are created by the electron and proton activities (pE and pH) in an environment of degraded soil structure. Australian sodic soils accumulate rela

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Broschat, Timothy K. "Palm Nutrition and Fertilization." HortTechnology 19, no. 4 (January 2009): 690–94. http://dx.doi.org/10.21273/hortsci.19.4.690.

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Palms (Arecaceae) growing in containers have similar nutritional requirements as other tropical ornamental plants and grow well with fertilizers having an elemental ratio of 3N:0.4P:1.7K. However, palms growing in the landscape or field nurseries have very different nutritional requirements from dicotyledonous plants. Whereas nitrogen (N) is the primary limiting nutrient element in container production, potassium (K), manganese (Mn), magnesium (Mg), boron (B), and iron (Fe) deficiencies are more widespread than N deficiency in most landscape soils. Because palms have a single apical meristem,

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Rochester, Ian J. "Phosphorus and potassium nutrition of cotton: interaction with sodium." Crop and Pasture Science 61, no. 10 (2010): 825. http://dx.doi.org/10.1071/cp10043.

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Poor phosphorus (P) and potassium (K) nutrition limits the growth and yield of many cotton (Gossypium hirsutum L.) crops in Australia. The demand for nutrients from cotton crops has risen as yields have increased over the past 40 years, and some soils have become depleted in these nutrients. Cotton is commonly grown on sodic soils that are more prone to nutritional problems. A survey of thirty-one sites over four years in northern NSW, Australia included twelve sites that had sodic topsoil. However, available soil P and K at all sites were above established critical values for cotton crops. So

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4

KARAMANOS, R. E., J. G. FRADETTE, and P. D. GERWING. "EVALUATION OF COPPER AND MANGANESE NUTRITION OF SPRING WHEAT GROWN ON ORGANIC SOILS." Canadian Journal of Soil Science 65, no. 1 (February 1, 1985): 133–48. http://dx.doi.org/10.4141/cjss85-014.

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A growth chamber experiment with six organic soils was conducted to assess the Cu and Mn nutrition of spring wheat grown on organic soils. Three rates of Cu (0, 5, and 10 μg∙g−1 of equivalent volume of a fsl) and three rates on Mn (0, 25, and 50 μg∙g−1 of equivalent volume of a fsl) were applied in all combinations to spring wheat grown on six organic soils. Normal growth of wheat plants was achieved only in soils and treatments where a proper balance on Mn and Cu was achieved. Dry matter yield responses at 45, and 60 days and grain yields reflected the significance of this balance. The major

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5

Chowdhury, Nasrin, and Md Mamunur Rasid. "Assessment of Soil Fertility and Crop Nutrient Status in Agricultural Soils Near a Brick Kiln Cluster." Journal of Agricultural Science 13, no. 1 (December 15, 2020): 122. http://dx.doi.org/10.5539/jas.v13n1p122.

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Brick kiln exhaust when deposited can hamper the nutritional status of the agricultural soils and crops. To study the impact, soil and associated plant samples were collected from the vicinity of a brick kiln cluster in Chattogram, Bangladesh. The soil contamination was evaluated by heavy metal indices. Agricultural soils close to the brick kiln area were very strongly acid to slightly acid. Organic carbon, total nitrogen and available phosphorus content of the agriculture soils near brick kiln cluster were 0.35% to 1.01%, 0.10 to 0.24% and 2.21 to 13.48 mg kg-1 respectively and the significan

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Mariano, Isabela Orlando dos Santos, Luiz Arnaldo Fernandes, Valdemar Faquin, and Alex Teixeira de Andrade. "Phosphorus critical levels and availability in lowland soils cultivated with flooded rice." Scientia Agricola 59, no. 1 (March 2002): 113–20. http://dx.doi.org/10.1590/s0103-90162002000100017.

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Lowland soils present a great potential for the flooded rice crop. This work aimed to estimate critical levels of P in waterlogged soils cultivated with rice using Mehlich 1 and anion exchange resin as soil-P extractors, compare the performance of these extractors as for the evaluation of the P availability, and study the soil-P fractions involved in the P nutrition of the rice crop. Studied soils consisted of four Histosols: Low Humic Gley (GP), Aluvial (A), Humic Gley (GH) and Bog Soil (O) which were previously cultivated with beans. The experimental design was completely randomized, in a fa

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Mamadalieva, Saidakhon Bakhodirbekovna, and Zuhriddin Muminovich Jumaboev. "Agricultural Measures In Soil Effect On Nutrition." American Journal of Applied sciences 02, no. 12 (December 12, 2020): 7–12. http://dx.doi.org/10.37547/tajas/volume02issue12-02.

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Results of scientific substantiation and introduction of optimal nutritional norms,seedling thickness and water consumption in the production of fairy-tale, high- quality cotton crop of UzPITI-201 cotton cultivated in the technology of sowing seeds under the film, which is a key element of accelerated saving technologies in light gray soils of Andijan region listed.

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Prietzel, Jörg, Jaane Krüger, Klaus Kaiser, Wulf Amelung, Sara L. Bauke, Michaela A. Dippold, Ellen Kandeler, et al. "Soil phosphorus status and P nutrition strategies of European beech forests on carbonate compared to silicate parent material." Biogeochemistry 158, no. 1 (February 2022): 39–72. http://dx.doi.org/10.1007/s10533-021-00884-7.

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AbstractSustainable forest management requires understanding of ecosystem phosphorus (P) cycling. Lang et al. (2017) [Biogeochemistry,https://doi.org/10.1007/s10533-017-0375-0] introduced the concept of P-acquiring vs. P-recycling nutrition strategies for European beech (Fagus sylvatica L.) forests on silicate parent material, and demonstrated a change from P-acquiring to P-recycling nutrition from P-rich to P-poor sites. The present study extends this silicate rock-based assessment to forest sites with soils formed from carbonate bedrock. For all sites, it presents a large set of general soil

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Negreanu-Pirjol, Bogdan-Stefan, Ticuta Negreanu-Pirjol, and Gabriela Mihaela Paraschiv. "Residual Marine Algae Biomass - An Important Raw Material for Obtaining a Soil Biostimulator-Regenerator." European Journal of Medicine and Natural Sciences 2, no. 2 (October 15, 2019): 37. http://dx.doi.org/10.26417/749ztk83f.

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This paper highlight a study regarding the valorification of residual marine algae biomass along Romanian Black Sea Coast, which recorded in the last summer period an accumulation of a large seaweed biomass quantities. The valorization of this waste was conceived as a result of theirs nutritional potential for improvind degraded soils of Dobrudja region, Romania and as complex capitalization of this biomass. It was establish the biotechnological process for the new biosolid nutrient composite obtaining. The parameter physical-chemical results of raw material used for biofertilizer obtaining, e

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Wacal, Cosmas, Naoki Ogata, Daniel Basalirwa, Daisuke Sasagawa, Tsugiyuki Masunaga, Sadahiro Yamamoto, and Eiji Nishihara. "Growth and K Nutrition of Sesame (Sesamum indicum L.) Seedlings as Affected by Balancing Soil Exchangeable Cations Ca, Mg, and K of Continuously Monocropped Soil from Upland Fields Converted Paddy." Agronomy 9, no. 12 (November 29, 2019): 819. http://dx.doi.org/10.3390/agronomy9120819.

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Growth of sesame is known to be limited by poor K nutrition as a result of imbalance in soil exchangeable cations that cause a competitive ion effect in continuous monocropping from upland fields converted paddy. We hypothesized that balancing soil exchangeable cations will improve the K nutrition and growth of sesame plants. Therefore, the specific objectives of this study were to determine the effect of balancing soil exchangeable cations Ca, Mg, and K of continuously monocropped soils on the growth and cation uptake of sesame seedlings and also identify a suitable source of nutrients for im

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Fernandes, Geraldo W., Luiz H. O. Rodarte, Daniel Negreiros, and Augusto C. Franco. "Aspectos nutricionais em Baccharis concinna (Asteraceae), espécie endêmica e ameaçada da Serra do Espinhaço, Brasil." Lundiana: International Journal of Biodiversity 8, no. 2 (August 30, 2008): 83–88. http://dx.doi.org/10.35699/2675-5327.2007.23186.

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The growth and development of a given plant species under its natural environment is highly influenced by the nutrient availability in the soil. Although much is known about the nutritional requirements of agricultural species, the knowledge on the nutritional needs of wild species and their correlation with the available nutrients and physico-chemical properties of the soil is still rudimentary. This knowledge is crucial for the development of conservation and management of species under extinction threats. Baccharis concinna Barroso (Asteraceae) is a dioecious shrub, endemic and threatened s

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CRUZ NETO, RAIMUNDO DE OLIVEIRA, JOSÉ OLIMPIO DE SOUZA JÚNIOR, GEORGE ANDRADE SODRÉ, and VIRUPAX CHANABASAPPA BALIGAR. "GROWTH AND NUTRITION OF CACAO SEEDLINGS INFLUENCED BY ZINC APLICATION IN SOIL." Revista Brasileira de Fruticultura 37, no. 4 (December 2015): 1053–64. http://dx.doi.org/10.1590/0100-2945-238/14.

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ABSTRACT Levels of Zn in tropical soils profoundly influences growth and nutrition of tree crops. Research was undertaken to assess the effect of soil Zn on growth and nutrition of clonal cacao tree seedlings of PH 16. Three acidic Oxisol soils differing in texture were used with nine doses of Zn (0, 1, 2, 4, 8, 16, 32, 48, and 64 mg dm-3). Rooted clonal seedlings were grown in plastic pot with 11 dm-3 of the soils at varying Zn levels for 240 days. At harvest growth (dry matter mass of leaves, stems, shoots, roots, and total) and nutrient concentrations were determined. The clonal cacao seedl

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ALLISON, M. F., J. H. FOWLER, and E. J. ALLEN. "Factors affecting the magnesium nutrition of potatoes (Solanum tuberosum)." Journal of Agricultural Science 137, no. 4 (December 2001): 397–409. http://dx.doi.org/10.1017/s0021859601001538.

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Between 1995 and 1999, eight response experiments tested the effects of magnesium (Mg) fertilizers on the yield of potato crops grown in East Anglia, the Midlands, the West and Southwest of England. In addition, a further six experiments tested the effects of varying nitrogen (N), phosphorus (P), potassium (K) and calcium (Ca) supply on the tuber concentrations and uptake of Mg by potato crops. The experiments were done on soils that contained varying amounts of exchangeable Mg and K but were still typical of soils used for potato production.In the eight response experiments, use of Mg fertili

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Saborío-Montero, Alejandro, Osvaldo Marín-Taylor, Randall Arguedas-Sánchez, and Sinaí Ramírez-Fallas. "Soil chemical fertility in dairy farms of the Guanacaste volcanic mountain range, Costa Rica." UNED Research Journal 7, no. 2 (December 15, 2015): 157–63. http://dx.doi.org/10.22458/urj.v7i2.1140.

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The aim of this research was to determine the fertility of soils of dairy farms at four zones of the Guanacaste volcanic mountain range. The study was conducted during a two-year period (2009-2010) in farms of Guayabo (Bagaces) and Nubes, San Ramón and Florida (Quebrada Grande, Tilarán). A total of 40 soil samples were collected, each one was composed by 20 sub- samples. The results revealed that soil pH in Guayabo tended to be lower (p=0.0539) than in Nubes, San Ramón and Florida. Guayabo soils showed higher concentrations (p<0.01) of magnesium (Mg), cupper (Cu), iron (Fe) and manganese (M

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15

Lungu, Mihaela, Sorin Liviu Ștefănescu, and Monica Dumitrașcu. "Quality of Organic Vegetables Grown in Two Certified Sites on the Outskirts of Bucharest Municipality." Present Environment and Sustainable Development 11, no. 2 (October 1, 2017): 173–85. http://dx.doi.org/10.1515/pesd-2017-0035.

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Abstract Soil fertility properties, irrigation water quality, mineral nutrition, and some vegetables mineral composition were studied in the frame of a project regarding yield quality monitoring in certified organic vegetable farms, in two farms placed on the outskirts of Bucharest Municipality which provide products for the town’s organic market. Chemical analysis of the soil samples collected from the two farms reflects a good fertility, close to the natural one of this region soils, with well-balanced organic matter, total nitrogen, accessible phosphorus and potassium contents. The nitrates

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Formánek, P., and V. Vranová. "A contribution to the effect of liming on forest soils: review of literature." Journal of Forest Science 49, No. 4 (January 16, 2012): 182–90. http://dx.doi.org/10.17221/4692-jfs.

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Extensive forest areas were ameliorated by large-scale liming in the last years in order to prevent proceeding acidification and degradation of forest soils. The hitherto knowledge of liming effects on the function of forest soils still appears insufficient for an unambiguous evaluation. Sorption properties of soils and acidity are favourably affected by liming and the favourable effect is usually manifested in the layer of forest floor humus and in mineral soil within ten years. Reduction of soil acidity stimulates development of a bacterial component of microflora, soil edaphon, and good pre

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Loch, Jakab. "The Role and Significance of Soil Analyses in Plant Nutrition and Environmental Protection." Acta Agraria Debreceniensis, no. 19 (March 4, 2006): 3–8. http://dx.doi.org/10.34101/actaagrar/19/3140.

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Hungary has a rich history of soil analyses and soil mapping. Our main tasks today are the preservation of soil fertility as well as balancing the goals of production and environmental protection. The main requirement of agricultural production is to adapt to ecological and economic conditions.In a series of consultative meetings in the past seven years, representatives from Central and Eastern Europe have analyzed nutrient management practices in their respective countries. According to a joint memorandum agreed upon in 2000, in the countries awaiting accession, the quantity of nutrients used

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Das, A. C., and D. Saha. "Influence of diazotrophic inoculations on nitrogen nutrition of rice." Soil Research 41, no. 8 (2003): 1543. http://dx.doi.org/10.1071/sr03115.

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An experiment was conducted in microplots (7 by 7m) to investigate the effect of 2 non-symbiotic N2-fixing bacteria [Azotobacter (strain CS1) and Azospirillum (strain CM4)] in the presence of 50 kg N/ha on the performances of the diazotrophs with respect to nitrogen accretion and its transformation in the rhizosphere soils of rice (Oryza sativa L. cv. IR-36). In most cases, a successful inoculation of the diazotrophs was recorded, with the proliferation of Azotobacter and Azospirillum, either alone or in combination, in the rhizosphere soils, and nitrogenase activity (C2H2 reduction) of the mi

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Ondřej, Sedlář, Balík Jiří, Kulhánek Martin, Černý Jindřich, and Kos Milan. "Mehlich 3 extractant used for the evaluation of wheat-available phosphorus and zinc in calcareous soils." Plant, Soil and Environment 64, No. 2 (February 6, 2018): 53–57. http://dx.doi.org/10.17221/691/2017-pse.

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Relation between wheat (Triticum aestivum) nutritional status determined at the beginning of stem elongation and during anthesis, respectively, and available content of phosphorus (P-M3) and zinc (Zn-M3) determined by the Mehlich 3 extractant was studied. Both one-year pot experiment with spring wheat and two-year on-farm trials with winter wheat were run on various calcareous soils (pH values of 7.18–7.94, median 7.80, P-M3 1–289 ppm, median 54, and Zn-M3 2–14 ppm, median 4), in the Czech Republic (Central Europe). Phosphorus nutrition index (ratio of phosphorus concentration in shoot biomass

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Kuziev, Jakhongir, Sherali Mansurov, Murod Karimov, and Aslbek Kholikulov. "Agrochemical condition and nutrition balance of newly irrigated light gray soils of Uzbekistan." E3S Web of Conferences 244 (2021): 02037. http://dx.doi.org/10.1051/e3sconf/202124402037.

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This paper notes the geographical location, soil and climatic conditions, geomorphological and geological structure of Jizzakh province, as well as the agrochemical status of newly irrigated light gray soils formed in Arnasay district of the province, nutrients and their balance in the autumn glaciers. According to the results of chemical analysis, it was found that the mechanical composition of the studied soils consists of light sandy and loamy soils, in which fine sand particles (0.5-0.05%) predominate. The study showed that in the driving layers of newly irrigated light gray soils, humus w

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Lasota, Jarosław, Wojciech Kraj, Bożena Honkowicz, Karolina Staszel, and Ewa Błońska. "Nutrient Status of Tree Seedlings in a Site Recovering from a Landslide." Forests 11, no. 6 (June 25, 2020): 709. http://dx.doi.org/10.3390/f11060709.

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The aim of the study was to investigate the effect of soil recovery after a landslide on the nutritional status of a young generation of Silver fir (Abies alba Mill.) and Silver birch (Betula pendula Roth.) trees. The study was carried out on the site of a landslide that took place in 2010 in the Gorlice Forest District (Southern Poland). Basic soil properties, macro, and microelements content and enzymatic activity were determined in the soil samples that were collected from across the landslide area, from locations distributed by a grid 10 × 10 m (18 points). Plant material samples, collecte

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Rothstein, David E., and Nicholas J. Lisuzzo. "Optimal Nutrition and Diagnosis for Abies fraseri Christmas Trees in Michigan." Northern Journal of Applied Forestry 23, no. 2 (June 1, 2006): 106–13. http://dx.doi.org/10.1093/njaf/23.2.106.

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Abstract Fraser fir (Abies fraseri) is a species with a highly restricted native range that is now planted widely for Christmas tree production throughout the eastern US. The southeastern US has a long history of research on nutritional demands of Fraser fir, but growers in the Upper Midwest have limited locally based nutrition research on which to draw. A survey of foliar nutrition and soil properties in Fraser fir Christmas tree plantations throughout the state of Michigan was conducted to accomplish the following objectives: 1) identify relationships between tree nutrition and tree performa

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Li, Meijie, Shunsuke Watanabe, Fei Gao, and Christian Dubos. "Iron Nutrition in Plants: Towards a New Paradigm?" Plants 12, no. 2 (January 13, 2023): 384. http://dx.doi.org/10.3390/plants12020384.

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Iron (Fe) is an essential micronutrient for plant growth and development. Fe availability affects crops’ productivity and the quality of their derived products and thus human nutrition. Fe is poorly available for plant use since it is mostly present in soils in the form of insoluble oxides/hydroxides, especially at neutral to alkaline pH. How plants cope with low-Fe conditions and acquire Fe from soil has been investigated for decades. Pioneering work highlighted that plants have evolved two different strategies to mine Fe from soils, the so-called Strategy I (Fe reduction strategy) and Strate

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Wells, M. Lenny. "Pecan Nutrient Element Status and Orchard Soil Fertility in the Southeastern Coastal Plain of the United States." HortTechnology 19, no. 2 (January 2009): 432–38. http://dx.doi.org/10.21273/hortsci.19.2.432.

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This survey addresses the current nutritional status of orchards typical of a large portion of the United States pecan (Carya illinoinensis) industry. A leaf nutrition and soil fertility survey was conducted for commercial orchards in a major production area of the U.S. pecan belt, which is located in southern Georgia. The study sampled pecan orchards from 18 July to 5 Aug. 2005 and 17 July to 3 Aug. 2008. All orchards had a history of commercial level orchard management, and represented a wide range of orchards typical of the region. Results indicate that southeastern U.S. pecan producers sho

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Tejada, Manuel, and Concepción Benítez. "Organic amendment based on vermicompost and compost: differences on soil properties and maize yield." Waste Management & Research: The Journal for a Sustainable Circular Economy 29, no. 11 (October 4, 2010): 1185–96. http://dx.doi.org/10.1177/0734242x10383622.

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The objective of the present study was to study the effect of two vermicomposts [animal (VCD) and vegetal origin (VGF)] and a cotton gin compost (C) at rates of 1780 and 3560 kg fresh organic matter ha−1 for 3 years on an Typic Xerofluvent located near Seville (Spain) on soil biological properties, nutrition (leaf N, P and K concentration, pigments and soluble carbohydrate concentrations) and yield parameters of maize ( Zea mays cv. Tundra) crop. All organic waste materials had a positive effect on the soil biological properties, plant nutrition and crop yield parameters, although at the end o

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Dodd, K., C. N. Guppy, P. V. Lockwood, and I. J. Rochester. "Impact of waterlogging on the nutrition of cotton (Gossypium hirsutum L.) produced in sodic soils." Crop and Pasture Science 64, no. 8 (2013): 816. http://dx.doi.org/10.1071/cp13093.

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Sodicity in Vertosols used for agricultural production can adversely affect the growth and nutrition of cotton (Gossypium hirsutum L.) plants. Cotton produced in sodic soils has reduced dry matter and lint yield and can develop toxic plant tissue concentrations of sodium (Na) but limited tissue concentrations of phosphorus (P,) potassium (K), and micronutrients. Crops produced on sodic soils frequently suffer from aeration stress after an irrigation or rainfall event, and it was hypothesised that the adverse physical and/or chemical conditions of sodic soils may exacerbate the effects of water

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Julich, Dorit, Vera Makowski, Karl-Heinz Feger, and Stefan Julich. "Phosphorus fluxes in two contrasting forest soils along preferential pathways after experimental N and P additions." Biogeochemistry 157, no. 3 (January 7, 2022): 399–417. http://dx.doi.org/10.1007/s10533-021-00881-w.

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AbstractThe assessment of impacts of an altered nutrient availability, e.g. as caused by consistently high atmospheric nitrogen (N) deposition, on ecosystem phosphorus (P) nutrition requires understanding of P fluxes. However, the P translocation in forest soils is not well understood and soil P fluxes based on actual measurements are rarely available. Therefore, the aims of this study were to (1) examine the effects of experimental N, P, and P+N additions on P fluxes via preferential flow as dominant transport pathway (PFPs) for P transport in forest soils; and (2) determine whether these eff

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Assunção, Ana G. L., Ismail Cakmak, Stephan Clemens, Manuel González-Guerrero, Adam Nawrocki, and Sébastien Thomine. "Micronutrient homeostasis in plants for more sustainable agriculture and healthier human nutrition." Journal of Experimental Botany 73, no. 6 (February 4, 2022): 1789–99. http://dx.doi.org/10.1093/jxb/erac014.

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Abstract The provision of sustainable, sufficient, and nutritious food to the growing population is a major challenge for agriculture and the plant research community. In this respect, the mineral micronutrient content of food crops deserves particular attention. Micronutrient deficiencies in cultivated soils and plants are a global problem that adversely affects crop production and plant nutritional value, as well as human health and well-being. In this review, we call for awareness of the importance and relevance of micronutrients in crop production and quality. We stress the need for better

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Levshakov, L. V. "The usefulness of sulfur fertilizers for balanced nutrition of spring wheat on zonal soils of the south-western Forest steppe zone." E3S Web of Conferences 282 (2021): 05006. http://dx.doi.org/10.1051/e3sconf/202128205006.

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The importance of sulfur for a balanced nutrition of grain crops is demonstrated. The content of mobile forms of sulfur in the main zonal soils of the Kursk region – black soil and gray forest soils is given. Gray wooded soils have a low content of mobile sulfur in most areas of the region. The availability of sulfur in black soil ranges from low to medium. Practical studies on the effectiveness of different types and forms of using sulfur-containing mineral fertilizers in the cultivation of spring wheat on zonal types of soils in the south-western forest steppe of the Central Black Earth Regi

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Novotný, R., Z. Lachmanová, V. Šrámek, and L. Vortelová. "Air pollution load and stand nutrition in the Forest District Jablunkov, part Nýdek." Journal of Forest Science 54, No. 2 (February 8, 2008): 49–54. http://dx.doi.org/10.17221/797-jfs.

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Concentrations of air pollutants measured by passive samplers, atmospheric deposition to forest ecosystems, soil water chemistry, nutrient content in the soil and foliage were all measured within a study of the causes of forest decline in Nýdek Forest Range, Jablunkov Forest District (Silesian Beskids). Declining Norway spruce stands are situated in a region of historically high air pollution load, mainly from the Třinec and Ostrava agglomeration. Air pollution significantly decreased in the second half of the 1990s. Forest soils showing the insufficiency of main nutrients remain today as the

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Carmona, Felipe de Campos, Ibanor Anghinoni, and Eduardo Giacomelli Cao. "Dynamics of ammonium and pH in the solution of soils with different salinity levels, growing irrigated rice." Revista Brasileira de Ciência do Solo 36, no. 2 (April 2012): 401–9. http://dx.doi.org/10.1590/s0100-06832012000200009.

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Rice in Rio Grande do Sul State is grown mostly under flooding, which induces a series of chemical, physical and biological changes in the root environment. These changes, combined with the presence of rice plants, affect the availability of exchangeable ammonium (NH4+) and pH of soil solution, whereas the dynamics of both variables can be influenced by soil salinity, a common problem in the coastal region. This study was conducted to evaluate the dynamics of exchangeable NH4+ and pH in the soil solution, and their relation in the solution of Albaqualf soils with different salinity levels, und

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Zama, Naledi, Kevin Kirkman, Ntuthuko Mkhize, Michelle Tedder, and Anathi Magadlela. "Soil Acidification in Nutrient-Enriched Soils Reduces the Growth, Nutrient Concentrations, and Nitrogen-Use Efficiencies of Vachellia sieberiana (DC.) Kyal. & Boatwr Saplings." Plants 11, no. 24 (December 17, 2022): 3564. http://dx.doi.org/10.3390/plants11243564.

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Nitrogen (N) and phosphorus (P) nutrient enrichment is important for grasslands. This study aimed to determine how soils enriched with N and P influenced soil concentration correlations and affected the growth kinetics, mineral nutrition, and nitrogen-use efficiencies of Vachellia sieberiana grown in a greenhouse experiment. The soils used as the growth substrate were analysed and showed extreme acidity (low soil pH, 3.9). Nitrogen-enriched soils were more acidic than P-enriched soils. Exchangeable acidity was strongly negatively correlated with an increase in soil pH, with soil pH between 3.9

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Jafarov, V., and Z. Mustafaev. "Effectiveness of Applying Fertilizers Under Watermelon on the Meadow-Grey Soils in Mugan-Salyan Zone." Bulletin of Science and Practice, no. 2 (February 15, 2023): 98–106. http://dx.doi.org/10.33619/2414-2948/87/12.

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The meadow-gray soils are one of the most widespread species in Azerbaijan territory, mainly in the Kur-Araz lowland, in Nakhchivan plain regions, in the Samur-Davachi valley. The meadow-gray soils irrigated in the Mugan-Salyan zone are most commonly used in the agricultural lands of the region. Agrochemical characterization of soils plays an important role in defining a number of its features, including fertility, degree of provision of certain nutrients, determination of soil condition reaction, timing, norms, methods and proportions of fertilizers under separate plantings. In this context,

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Rodenkirchen, Hermann, and Bruce A. Roberts. "Soils and plant nutrition on a serpentinized ridge in South Germany. I. Soils." Zeitschrift für Pflanzenernährung und Bodenkunde 156, no. 5 (1993): 407–10. http://dx.doi.org/10.1002/jpln.19931560505.

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Belanovic, Snezana, and Olivera Kosanin. "Exchangeable cations in some soils of Mt. Stara planina." Bulletin of the Faculty of Forestry, no. 91 (2005): 63–76. http://dx.doi.org/10.2298/gsf0591063b.

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Land use in forest and pasture ecosystems requires the respecting of ecological and economic interactions between the individual components of these ecosystems. The content of nutrition elements in the soil solution depends on soil types, climate conditions and vegetation species, i.e., it is conditioned by their cycling in the ecosystem. This paper studies the cation exchange capacity in pasture and forest soils of Mt. Stara Planina.

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Ryan, PJ. "Boron retention within a catena of rhyolitic soils and Its effect on radiata pine growth and nutrition." Soil Research 27, no. 1 (1989): 135. http://dx.doi.org/10.1071/sr9890135.

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Boron deficiency in Pinus radiata (D. Don) plantations in N.S.W. has been particularly evident on soils derived from acid igneous parent materials. A slope sequence (catena) of soils on a rhyolitic parent material was selected to study the amount of boron retention and its relationship to soil development. The soils at three positions, a hillcrest, mid-slope and lower slope, were described and various soil chemical and physical properties were determined for each horizon. Tree height, deformity, survival and foliar chemistry of 6 year old P. radiata were measured in plots adjacent to the three

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Robson, AD, NE Longnecker, and LD Osborne. "Effects of heterogeneous nutrient supply on root growth and nutrient uptake in relation to nutrient supply on duplex soils." Australian Journal of Experimental Agriculture 32, no. 7 (1992): 879. http://dx.doi.org/10.1071/ea9920879.

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Most duplex soils in Western Australia are characterised by multiple nutrient deficiencies. Applications of micronutrients, as well as the macronutrients phosphorus, potassium, nitrogen and sulfur, have been essential for crop and pasture production on these soils. Duplex soils are characterised by heterogeneity in the distribution of mineral nutrients with depth. Additionally, there is heterogeneity both vertically and horizontally in suitability of soil conditions for root growth. There are at least 2 consequences of this heterogeneity for the mineral nutrition of plants on duplex soils. Fir

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Lag-Brotons, Alfonso José, José Martín Soriano-Disla, Ignacio Gómez, and José Navarro-Pedreño. "Saline Irrigation Effects on Cynara cardunculus L. Plants Grown in Mediterranean Soils." HortScience 48, no. 6 (June 2013): 762–67. http://dx.doi.org/10.21273/hortsci.48.6.762.

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Cynara cardunculus L., known as cynara for industrial application, is a versatile plant for Mediterranean regions. Irrigation with non-conventional salty water sources is a common practice in these water-scarce regions. However, the research performed on cynara salt-stress response is limited and solely tested under soilless conditions. Thereby, the aims of the current experiment were to ascertain the effect of saline irrigation on cynara growth and mineral nutrition in Mediterranean soils. The influence of soil was considered using two typical agricultural soils, mainly differing in their sal

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Rajammal, Sherene Jenita, T, S. Maragatham, and R. Santhi. "Development of Soil Test based Fertilizer Prescription Equations under IPNS for Rice in Salt affected soils of Tamil Nadu." YMER Digital 21, no. 03 (March 2, 2022): 01–10. http://dx.doi.org/10.37896/ymer21.03/01.

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Soil Test Crop Response - Integrated Plant Nutrition System (STCR - IPNS) technology in restoring soil fertility in sodic soil was well established in this study. STCR -IPNS correlation studies were conducted with rice in black calcareous sandy clay loam (Vertic Ustropept) sodic soils of Tamil Nadu, Southern India during 2019 – 2021and fertilizer prescription equations under Integrated Plant Nutrition System (IPNS) were developed. A ready reckoner of fertilizer doses at varying soil test values, for attaining 6 and 6.5 t ha-I target grain yield of rice has been worked out. Using these equation

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Radwan, M. A. "Effect of forest floor on growth and nutrition of Douglas-fir and western hemlock seedlings with and without fertilizer." Canadian Journal of Forest Research 22, no. 9 (September 1, 1992): 1222–29. http://dx.doi.org/10.1139/x92-163.

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Experiments were conducted to determine the effects of four different forest soils on growth and shoot nutrients of potted Douglas-fir (Pseudotsugamenziesii (Mirb.) Franco) and western hemlock (Tsugaheterophylla (Raf.) Sarg.) seedlings, in absence and in presence of forest floor, and with and without N and P fertilizers. Nine-month-old seedlings from low-elevation seed sources were used, and seedlings were grown for 2 years in a roofed lathhouse. Soils were of the Klone, Vesta, Bunker, and Shelton series; Klone and Vesta soils, and Bunker and Shelton soils, were collected from western hemlock

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Čekstere, Gunta, Anita Osvalde, and Māris Laiviņš. "Mineral Nutrition of Young Ash in Latvia." Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences. 70, no. 3 (June 1, 2016): 138–49. http://dx.doi.org/10.1515/prolas-2016-0022.

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Abstract The research objectives were: 1) to determine healthy young ash supply with nutrients and their concentrations in natural growth conditions; 2) to estimate nutrient balance and inter-correlations within a system “soil-plants”; and 3) to determine the potential effect of environmental conditions (forest type, plant phytosociological group, soil group, etc.) on nutrient accumulation in soil and leaves of young ash. The investigation was conducted in 28 different forest sites with young ash in Latvia. The results demonstrated that young ash grows well on a wide range of site types in ter

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Wilmot, Timothy R., David S. Ellsworth, and Melvin T. Tyree. "Relationships among crown condition, growth, and stand nutrition in seven northern Vermont sugarbushes." Canadian Journal of Forest Research 25, no. 3 (March 1, 1995): 386–97. http://dx.doi.org/10.1139/x95-043.

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We compared growth with soil and foliar elemental composition in seven stands of sugar maple (Acersaccharum Marsh.) in northern Vermont characterized by high or low incidence of crown dieback over the period 1989–1992. In stands with low-quality crown conditions, such as elevated crown dieback, long-term basal area growth rates were approximately half of those in stands with higher crown quality. Average annual basal area growth was 17.5 cm2 for dominant trees in these stands during the period 1953–1992 compared with 32.3 cm2 for trees in higher quality stands. The occurrence of elevated crown

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Jessop, RS, G. Roth, and P. Sale. "Effects of increased levels of soil CaCO3 on Lupin (Lupinus angustifolius) growth and nutrition." Soil Research 28, no. 6 (1990): 955. http://dx.doi.org/10.1071/sr9900955.

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Little published evidence exists which relates narrow-leafed lupin growth to lime levels in soils when compared with growth on a soil with minimal or zero levels of lime. This pot experiment measured lupin growth and nodulation plus plant levels of Ca and Fe by using mixtures of a gilgaid black earth soil with varying quantities of free lime. A sand control allowed a plant growth comparison at minimal levels of lime. Iron sequestrene was added to all treatments to eliminate iron chlorosis. Plants harvested 68 days after sowing showed adequate levels of Fe. However, plant height, branch number,

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Olego, Miguel Ángel, Mateo Cuesta Lasso, Miguel Javier Quiroga, Fernando Visconti, Roberto López, and Enrique Garzón-Jimeno. "Effects of Leonardite Amendments on Vineyard Calcareous Soil Fertility, Vine Nutrition and Grape Quality." Plants 11, no. 3 (January 28, 2022): 356. http://dx.doi.org/10.3390/plants11030356.

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Vineyard calcareous soils are usually low in organic matter, which makes them prone to physical, chemical, and biological degradation. Besides, these soils are also usually poor in various nutrients in plant-available form, e.g., iron. To make up for this lack of soil fertility, on the one hand, manures, and on the other, iron chelates are usually used. However, the soil application of these materials is not free from problems, and other amendments based on leonardites could be advantageously used as an alternative. Therefore, two organic amendments, one leonardite alone (1 Mg/ha), and the oth

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Sainz, Maria J., and J. Arines. "Effects of native vesicular–arbuscular mycorrhizal fungi and phosphate fertilizer on red clover growth in acid soils." Journal of Agricultural Science 111, no. 1 (August 1988): 67–73. http://dx.doi.org/10.1017/s0021859600082824.

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SummaryThe effect of P applications and native vesicular-arbuscular mycorrhiza (VAM) on the growth and P nutrition of red clover plants was studied in two acid hill soils with similar edaphic characteristics.Mycorrhizal and non-mycorrhizal plants were compared under sterilized soil conditions. Plant growth increased on P addition in both soils, but the effect of mycorrhiza in improving drymatter production and P uptake was significant only in one of the soils. Fourteen and twenty-five mg/kg Olsen-P were needed in this soil to obtain the same yields by mycorrhizal and non-mycorrhizal plants, re

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Gomes, Luciene, Silvio Simões, Eloi Dalla Nora, Eráclito de Sousa-Neto, Maria Forti, and Jean Ometto. "Agricultural Expansion in the Brazilian Cerrado: Increased Soil and Nutrient Losses and Decreased Agricultural Productivity." Land 8, no. 1 (January 8, 2019): 12. http://dx.doi.org/10.3390/land8010012.

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While food and nutrition security are issues that national and international organizations are tackling, one of the central problems often overlooked is the essential role of soils in providing nutritious food. Soils are the base for food production and food security. However, the majority of soils are in fair and poor conditions, with the most significant threats being erosion and loss of nutrients. In this study, we estimate the potential of soil loss, agricultural productivity loss, and nutrient loss for Brazil’s most important agricultural region, the Brazilian Cerrado, for the years 2000

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Lee, Jin Wook, and Kenneth W. Mudge. "GYPSUM AFFECTS AMERICAN GINSENG'S GROWTH, NUTRITION, AND GINSENOSIDES." HortScience 41, no. 3 (June 2006): 492C—492. http://dx.doi.org/10.21273/hortsci.41.3.492c.

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In the Northeast, wild American ginseng (Panax quinquefolium L.) is typically found growing in the dense shade provided by deciduous hardwood tree species such as a sugar maple, in slightly acidic soils with relatively high calcium content. Woods cultivated ginseng is often grown in forest farming agroforestry systems under similar conditions. Supplemental calcium by soil incorporation of gypsum (CaSO4·2H2O) is often recommended for woods cultivated ginseng. The objective of this study was to investigate the effects of this practice on soil chemical properties, plant growth and quality of Amer

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J. Foley, William. "Marsupial Nutrition." Pacific Conservation Biology 5, no. 3 (1999): 240. http://dx.doi.org/10.1071/pc99240a.

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In the early 1980s advances in marsupial biology could no longer be encapsulated in a single volume such as Hugh Tyndale-Biscoe's "Life of Marsupials" and Cambridge University Press commissioned a series of monographs covering a range of different topics in marsupial biology. As it was, only three of that series were realized and among them was the ptedecessor to this book "Digestive Physiology and Nutrition of Marsupials" published in 1982. "Marsupial Nutrition" is a considerably expanded and comprehensive review of studies of nutrition and digestive physiology of Australasian and South Ameri

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O'Rourke, Tiernan A., Megan H. Ryan, Tim T. Scanlon, Krishnapillai Sivasithamparam, and Martin J. Barbetti. "Amelioration of root disease of subterranean clover (Trifolium subterraneum) by mineral nutrients." Crop and Pasture Science 63, no. 7 (2012): 672. http://dx.doi.org/10.1071/cp12239.

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Subterranean clover (Trifolium subterraneum) is a key pasture legume across southern Australia and elsewhere. Decline in subterranean clover pastures was first recognised in Australia during the 1960s and manifests as an increase in weeds and a decrease in desirable legume species. While both root disease and poor nutrition contribute to subterranean clover pasture decline, the relationships between root disease and nutrition have not been determined. The objective of this study was to define these relationships. Field experiments were undertaken to determine the nutritional and pathogen statu

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Graham, James H., and James P. Syvertsen. "Do Mycorrhizae Influence the Drought Tolerance of Citrus?" Journal of Environmental Horticulture 5, no. 1 (March 1, 1987): 37–39. http://dx.doi.org/10.24266/0738-2898-5.1.37.

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The benefits of vesicular-arbuscular mycorrhizal (VAM) fungi for increasing drought tolerance have been demonstrated under nutrient-limiting conditions, particularly in low phosphorus (P) soils. Horticultural plants grown in soilless media, under greenhouse fertilizer regimes, are usually non-mycorrhizal, but have optimum P and the desired size and nutritional characteristics available when transplanted. Since plant nutrition can influence responses to environmental stress, potential benefits of VAM fungi for reducing transplant stress, such as drought, should be evaluated where growth and nut

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