Relevant bibliographies by topics / Urea in soils

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Urea in soils'

Author: Grafiati
Published: 4 June 2021
Last updated: 12 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Urea in soils.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Urea in soils"

1

Suter, H. C., P. Pengthamkeerati, C. Walker, and D. Chen. "Influence of temperature and soil type on inhibition of urea hydrolysis by N-(n-butyl) thiophosphoric triamide in wheat and pasture soils in south-eastern Australia." Soil Research 49, no. 4 (2011): 315. http://dx.doi.org/10.1071/sr10243.

Full text
Abstract:
Incubation experiments were conducted to assess the effectiveness of N-(n-butyl) thiophosphoric triamide (NBPT) for inhibiting hydrolysis of urea in three wheat-growing soils and one pasture soil in south-eastern Australia, under a range of temperatures (5, 15, 25°C). The effectiveness of NBPT decreased with increasing temperature and with increasing urease activity. In the acidic pasture soil with high urease activity (186 μg N/g soil.h) and high organic carbon content (11%), NBPT (0.1% w/w urea) had little impact on urea hydrolysis rates over all temperatures, with <1% urea remaining at D
APA, Harvard, Vancouver, ISO, and other styles
2

Ali, Maru, Ahmed Osumanu Haruna, Nik Muhamad Abd Majid, et al. "Using Soil Water to Control Ammonia Emission from Acid Soils with and Without Chicken Litter Biochar." Sustainable Agriculture Research 8, no. 3 (2019): 23. http://dx.doi.org/10.5539/sar.v8n3p23.

Full text
Abstract:
Although urea use in agriculture is on the increase, increase in pH at soil microsite due to urea hydrolysis which causes ammonia emission can reduce N use efficiency. Among the interventions used to mitigate ammonia loss include urease inhibitors, clinoptilolite zeolite, coated urea, and biochar but with little attention to the use of soil water levels to control ammonia volatilization. The objective of this study was to determine the effects of soil water levels on ammonia volatilization from soils with and without chicken litter biochar. Dry soils with and without chicken litter biochar wer
APA, Harvard, Vancouver, ISO, and other styles
3

Motasim, Ahmmed Md, Abd Wahid Samsuri, Arina Shairah Abdul Sukor, and Amin Mohd Adibah. "Nitrogen Dynamics in Tropical Soils Treated with Liquid and Granular Urea Fertilizers." Agriculture 11, no. 6 (2021): 546. http://dx.doi.org/10.3390/agriculture11060546.

Full text
Abstract:
The mineralization of urea fertilizer mostly regulates the nitrogen dynamics in the soil. A laboratory-scale study was conducted to compare the nitrogen dynamics in two tropical soil series incubated with either liquid urea (LU) or granular urea (GU) at 0, 300, 400 or 500 mg/kg of soil. The soils samples used in the experiment were the Bungor and Selangor soil series which have a sandy clay loam and clay texture, respectively. The NH4+-N, NO3−-N concentration in the soils were measured for four weeks to determine the urea-N mineralization while ten pore volumes of water were used for the NH4+-
APA, Harvard, Vancouver, ISO, and other styles
4

Singh, Balwinder, and M. S. Bajwa. "Studies on the leaching of urea in sodic soils." Journal of Agricultural Science 106, no. 2 (1986): 323–30. http://dx.doi.org/10.1017/s0021859600063917.

Full text
Abstract:
SUMMARYLaboratory experiments were conducted in PVC columns to study the leaching and transformation of applied urea in sodic soils (Gharachon loam-Aquic Natrustalf and Domeli silty clay loam-Aquic Camborthid) reclaimed by gypsum application and kept submerged for 7 or 14 days after fertilizer application. The effect of different depths of irrigation water (5, 7·5, 10, 20 and 30 cm) on urea leaching was studied in a sandy loam sodic soil. In another experiment, the effect of time interval (0 or 4 days) between urea application and initiation of submergence with distilled water (for 7 or 14 day
APA, Harvard, Vancouver, ISO, and other styles
5

Olaleye, Abimfoluwa, Derek Peak, Akeem Shorunke, et al. "Effect of Manure and Urea Fertilization on Yield, Carbon Speciation and Greenhouse Gas Emissions from Vegetable Production Systems of Nigeria and Republic of Benin: A Phytotron Study." Agronomy 10, no. 3 (2020): 400. http://dx.doi.org/10.3390/agronomy10030400.

Full text
Abstract:
Fertility management techniques being promoted in sub-Saharan Africa (SSA) seek to grow indigenous vegetables economically and sustainably. This study was conducted in a phytotron chamber and compared yield, soil carbon (C) speciation and greenhouse gas (nitrous oxide (N2O) and carbon dioxide (CO2)) emissions from SSA soils of two ecoregions; the dry savanna (lna, Republic of Benin) and rainforest (Ife, Nigeria) cultivated with local amaranth (Amaranthus cruentus) under manure (5 t/ha) and/or urea (80 kg N/ha) fertilization. Vegetable yield ranged from 4331 kg/ha to 7900 kg/ha in the rainfores
APA, Harvard, Vancouver, ISO, and other styles
6

Wali, Pardeep, Vinod Kumar, and J. P. Singh. "Effect of soil type, exchangeable sodium percentage, water content, and organic amendments on urea hydrolysis in some tropical Indian soils." Soil Research 41, no. 6 (2003): 1171. http://dx.doi.org/10.1071/sr01090.

Full text
Abstract:
Urea has emerged as one of the most extensively used sources of nitrogen fertiliser in recent years because of its low cost per unit nitrogen. Urea hydrolysis in soils is an enzymatic decomposition process by the enzyme urease. The effects of soil type, exchangeable sodium percentage, moisture regime, and organic manures and their levels on the kinetics of urea hydrolysis were studied in a series of laboratory incubation experiments at 25 ± 1�C. Urea transformation followed first-order kinetics, and the first-order rate constants for soils varied from 0.0321 to 0.1182/h. The rate of urea hydro
APA, Harvard, Vancouver, ISO, and other styles
7

Shetty, Premalatha, Chaithra Acharya, and Nalavi Veeresh. "Effect of Urea Fertilizer on the Biochemical Characteristics of Soil." International Journal of Applied Sciences and Biotechnology 7, no. 4 (2019): 414–20. http://dx.doi.org/10.3126/ijasbt.v7i4.26778.

Full text
Abstract:
Urea-potash mixture was added to the manured soil at three different concentrations equivalent to 0.8, 1.6 and 2.4g f urea per 10Kg of soil. Nitrate and nitrite N concentration in the soil increased within 24h after addition of urea. The nitrate N content in soil without urea was 17 µg and in urea fertilized soils, it ranged from 39.9-47 µg/g of soil after 19h. . Increase in total mineralizable N was around 67- 160% in urea fertilized soils in comparison to the control. Percent conversion of urea to nitrate and nitrite N decreased at higher concentrations of the fertilizer. Addition of biochar
APA, Harvard, Vancouver, ISO, and other styles
8

Motasim, Ahmmed Md, Abd Wahid Samsuri, Arina Shairah Abdul Sukor, and Amin Mohd Adibah. "Gaseous Nitrogen Losses from Tropical Soils with Liquid or Granular Urea Fertilizer Application." Sustainability 13, no. 6 (2021): 3128. http://dx.doi.org/10.3390/su13063128.

Full text
Abstract:
Gaseous loss of N leads to lower nitrogen use efficiency (NUE) of applied urea and N content of the soil. This laboratory study was conducted to compare the nitrogen losses from two tropical soil series (Bungor sandy clay loam and Selangor clay) incubated with either liquid urea (LU) or granular urea (GU) at 0, 300, 400, or 500 mg/kg of soil for thirty days. The NH3 volatilization, N2O emission, and N content in the soils were measured throughout the incubation period. For the same application rate, the total NH3 volatilization loss was higher in GU-treated soils than the LU-treated soils. NH3
APA, Harvard, Vancouver, ISO, and other styles
9

OBI, A. OLU, R. A. HEDLIN, and C. M. CHO. "CROP UTILIZATION AND SOIL RETENTION OF NITROGEN FROM 15N-LABELLED UREA, CALCIUM NITRATE, and AMMONIUM SULPHATE IN SEVERAL MANITOBA SOILS." Canadian Journal of Soil Science 66, no. 4 (1986): 661–71. http://dx.doi.org/10.4141/cjss86-066.

Full text
Abstract:
A growth chamber study was carried out to determine crop utilization of nitrogen added as 15N-labelled calcium nitrate or urea to eight Manitoba soils of diverse characteristics. Dry matter yield of wheat was significantly greater where calcium nitrate was used as a nitrogen source than when urea was the nitrogen source in Pine Ridge, Wellwood, and Granville soils. Residual nitrogen in the soil at the end of the experiment was greater where urea was used than where calcium nitrate was used. Total recovery of urea nitrogen generally exceeded recovery of nitrogen from calcium nitrate. In a labor
APA, Harvard, Vancouver, ISO, and other styles
10

Mavi, M., B. Singh, and R. Setia. "Effect of organics on nitrogen transformations in soil under different moisture regimes." Acta Agronomica Hungarica 56, no. 3 (2008): 285–93. http://dx.doi.org/10.1556/aagr.56.2008.3.4.

Full text
Abstract:
Awareness of the environmental aspects of the quality of crop production has increased in recent decades, leading to renewed interest in organics such as crop residues, green manures and organic manures. The effect of organics on urea transformation was investigated by conducting a laboratory incubation experiment in alluvial clay loam soil (Typic Ustifluvents) at 33±1°C with two moisture levels (1:1 soil:water ratio and field capacity). The rate of urea hydrolysis decreased as the time of incubation increased and the disappearance of urea N was associated with a corresponding increase in the
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Urea in soils"

1

Ali, Abdul-Mehdi Saleh. "Reactions of urea phosphate in calcareous and alkaline soils: Ammonia volatilization and effects on soil sodium and salinity." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184694.

Full text
Abstract:
Nitrogen (N) loss in the form of volatilized ammonia (NH₃) is a considerable problem when ammonium (NH₄⁺) forming fertilizers are applied to calcareous or alkaline soils. Large areas of agricultural land, contain alkalinity and salinity problems, are potentially suitable for crop production with little alteration. This study was conducted to determine and compare the effectiveness of urea phosphate (UP) in reducing soil alkalinity and NH₃ loss. The volatilization of NH₃ from UP and urea (U) was studied on 3 selected soils (Hayhook SL, Laveen L and Latene L) using an aeration system. Urea phosp
APA, Harvard, Vancouver, ISO, and other styles
2

Meier, Jackie N. "Effects of lignosulfonate in combination with urea on soil carbon and nitrogen dynamics." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=56658.

Full text
Abstract:
Lignosulfonate (LS), a by-product of the pulp and paper industry, may have the potential to increase fertilizer N availability by acting as a urease and nitrification inhibitor. Four consecutive laboratory studies were conducted to evaluate the behavior of LS in agricultural soils. The effects of various types and rates of LS on soil respiration and soil N dynamics were determined. Effects of LS in combination with fertilizers on microbial activity and N dynamics were measured. Due to the high water solubility of LS a leaching column study was conducted to determine the potential leaching of L
APA, Harvard, Vancouver, ISO, and other styles
3

Huang, Yuh-Ming. "The effects of precipitation of calcium carbonate on soil pH following urea application." Thesis, University of Oxford, 1990. https://ora.ox.ac.uk/objects/uuid:a81844cb-c0c1-4dd3-a3c5-fc7a1b716021.

Full text
Abstract:
This thesis describes a series of experiments both in solution systems and soil systems to study the precipitation of calcium carbonate in soils and the effects of the precipitation on soil pH after urea had been applied. (1) A gas bubbling system has been established which introduces ammonia at a steady rate to the reaction solution and keeps it equilibrated at 0.00484 atm partial pressure of carbon dioxide. (2) In a non-seeded system, the effects of calcium, urea, Mg (magnesium), P (phosphate), and DOC (water-dissolved organic matter) on the precipitation were examined individually and in va
APA, Harvard, Vancouver, ISO, and other styles
4

Schindler, Frank Vincent. "Redistribution and fate of applied ??N-enriched urea under irrigated continuous corn production." Thesis, North Dakota State University, 1996. https://hdl.handle.net/10365/28973.

Full text
Abstract:
Understanding the redistribution and fate of N is essential for justification of Best Management Practices (BMP). This project was conducted on a Hecla fine sandy loam (sandy, mixed, Aquic Haploboroll) soil at the BMP field site near Oakes, North Dakota. One objective of this investigation was to evaluate the residence times of N03- -N in 20 undisturbed lysimeters and its infiltration time through the soil profile to tile drains. Corn (Zea mays L.) was fertilized with 135 kg N ha -1 as ??N-enriched urea plus 13.5 and 48.1 kg N ha -1 preplant for 1993 and 1994, respectively. Urea-N was band app
APA, Harvard, Vancouver, ISO, and other styles
5

Yusran, Fadly Hairannoor. "Triple superphosphate and urea effects on availability of nutrients in the fertilizer band for soybean (Glycine max L.) growth with emphasis on molybdenum." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=69710.

Full text
Abstract:
Fertilizer applications of urea and triple superphosphate (TSP) may affect availability of plant nutrients in the soil through alteration of soil pH and sorption-displacement effects. The objectives of this experiment were to evaluate urea and TSP effects on nutrient availability to soybean (Glycine max L.). Field experiments were carried out on three Quebec soils; a Chicot sandy clay loam (Gleyed Melanic Brunisol), an Ormstown silty clay loam (Luvic Gleysol) and a Ste. Rosalie clay (Humic Gleysol). Three levels of TSP (0, 40, 80 kg $ rm P sb2O sb5 ha sp{-1}),$ and three levels of urea (0, 25,
APA, Harvard, Vancouver, ISO, and other styles
6

Noellsch, Adam J. "Optimizing crop N use efficiency using polymer-coated urea and other N fertilizer sources across landscapes with claypan soils." Diss., Columbia, Mo. : University of Missouri-Columbia, 2008. http://hdl.handle.net/10355/5643.

Full text
Abstract:
Thesis (M.S.)--University of Missouri-Columbia, 2008.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on September 12, 2008) Includes bibliographical references.
APA, Harvard, Vancouver, ISO, and other styles
7

Ouyang, Duosheng. "New fertilizer combinations for improved nitrogen and phosphorus use efficiency and reduced environmental damage in corn production." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0004/NQ30353.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Stark, Christine. "Effects of long- and short-term crop management on soil biological properties and nitrogen dynamics." Phd thesis, Lincoln University. Agriculture and Life Sciences Division, 2005. http://theses.lincoln.ac.nz/public/adt-NZLIU20070220.010748/.

Full text
Abstract:
To date, there has been little research into the role of microbial community structure in the functioning of the soil ecosystem and on the links between microbial biomass size, microbial activity and key soil processes that drive nutrient availability. The maintenance of structural and functional diversity of the soil microbial community is essential to ensure the sustainability of agricultural production systems. Soils of the same type with similar fertility that had been under long-term organic and conventional crop management in Canterbury, New Zealand, were selected to investigate relation
APA, Harvard, Vancouver, ISO, and other styles
9

Condron, Leo M. "Chemical nature and plant availability of phosphorus present in soils under long-term fertilised irrigated pastures in Canterbury, New Zealand." Lincoln College, University of Canterbury, 1986. http://hdl.handle.net/10182/1875.

Full text
Abstract:
Soil P fractionation was used to examine changes in soil inorganic and organic P under grazed irrigated pasture in a long-term field trial at Winchmore in Mid-Canterbury. The soil P fractionation scheme used involved sequential extractions of soil with O.5M NaHCO₃ @ pH 8.5 (NaHCO₃ P), 0.1M NaOH (NaOH I P), 1M HCl (HCl P) and 0.1M NaOH (NaOH II P). The Winchmore trial comprised 5 treatments: control (no P since 1952), 376R (376 kg superphosphate ha⁻¹ yr⁻¹ 1952-1957, none since), 564R (564 kg superphosphate ha⁻¹ yr⁻¹ 1952-1957, none since) 188PA (188 kg superphosphate ha⁻¹ yr⁻¹ since 1952) and 3
APA, Harvard, Vancouver, ISO, and other styles
10

Hulm, Sharon C. "Fertilizer nitrogen transformations following urea application to an afforested ecosystem." Thesis, University of Aberdeen, 1987. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU010535.

Full text
Abstract:
Fertilizer nitrogen transformations in two Sitka spruce stands in northeast Scotland were studied using 15N-labelled (2.5 atom % 15N) urea at a rate equivalent to 160 kg N ha-1. The use of urea fertilizer resulted in accelerated growth of the tree crowns, and higher concentrations of total N in foliage, twigs and new wood. There was no fertilizer effect observed for bark. Despite a positive growth response by the trees to fertilizer N, only an estimated 17% of applied-N was utilized by the tree biomass. Application of urea-N resulted in a reduction in the leaching of inorganic N and certain ca
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Urea in soils"

1

Harsh, James Birney. Supercritical fluid extraction of 2,4-D, metribuzin, and urea herbicides from selected Washington soils: Final report. State of Washington Water Research Center, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

M, Simihǎian, ed. Improving efficiency of urea fertilizers by inhibition of soil urease activity. Kluwer Academic Publishers, 2002.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Kiss, S., and M. Simihăian. Improving Efficiency of Urea Fertilizers by Inhibition of Soil Urease Activity. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-1843-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Rekhi, R. S. Fate and efficiency of urea fertilizers in India: Fate and efficiency of nitrogen fertilizers using ℗£??ǽN as testing material. Dept. of Soils, Punjab Agricultural University, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Workshop on Urea Deep-Placement Technology (1984 Bogor, Indonesia). Proceedings of the Workshop on Urea Deep-Placement Technology, Bogor, Indonesia, September 1984. IFDC, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

J, Radel R., ed. Degradation of urease inhibitors in soils. Tennessee Valley Authority National Fertilizer Development Center, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

L, Obermeyer Edmund, Anderson Harry William, and Pacific Northwest Research Station (Portland, Or.), eds. Comparative effects of precommercial thinning, urea fertilizer, and red alder in a site II, coast Douglas-fir plantation. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1999.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Marion, Carol I. Effects of nitrogen source, rate and a nitrification inhibitor on soil nitrogen status and mineral composition of strawberry. 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Kiss, S., and M. Simihaian. Improving Efficiency of Urea Fertilizers by Inhibition of Soil Urease Activity. Springer, 2002.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Kiss, S., and M. Simihaian. Improving Efficiency of Urea Fertilizers by Inhibition of Soil Urease Activity. Springer, 2013.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Urea in soils"

1

Samater, A. H., and O. Van Cleemput. "Nitrite Accumulation in Soils upon Urea Application." In Progress in Nitrogen Cycling Studies. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-011-5450-5_101.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Kissel, D. E., M. L. Cabrera, and S. Paramasivam. "Ammonium, Ammonia, and Urea Reactions in Soils." In Nitrogen in Agricultural Systems. American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr49.c4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Bremner, J. M. "Recent research on problems in the use of urea as a nitrogen fertilizer." In Nitrogen Economy in Tropical Soils. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-009-1706-4_30.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Kiss, S., and M. Simihăian. "Use of Urease Inhibitors in the Analysis of Urea and/or Ammonium from Urea-treated Soils." In Improving Efficiency of Urea Fertilizers by Inhibition of Soil Urease Activity. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-1843-1_10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Cajuste, L. J., E. Sánchez-A, and R. J. Laird. "Behaviour of urea and ammonium sulfate fertilizers and their N uptake relationships in calcareous soils." In Nitrogen Economy in Tropical Soils. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1706-4_33.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Gouveia, Gregory A., Nazeer Ahmad, and Selwyn M. Griffith. "Urea-N uptake by dasheen (Colocasia esculenta L. Schott) in relation to the fertilizer placement method." In Nitrogen Economy in Tropical Soils. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-009-1706-4_21.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Kiss, S., and M. Simihăian. "Effect of Urease Inhibitors on Other Enzyme Activities, Microbial Counts and Biomass as well as on Respiration and Other Microbial Processes in Soils." In Improving Efficiency of Urea Fertilizers by Inhibition of Soil Urease Activity. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-1843-1_9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Roelcke, M., Y. Han, S. X. Li, and J. Richter. "Laboratory measurements and simulations of ammonia volatilization from urea applied to calcareous Chinese loess soils." In Progress in Nitrogen Cycling Studies. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-011-5450-5_80.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Jianga, Zhaohui, Qingru Zeng, Hejie Pi, Bohan Liao, Xiaoyou Feng, and Yulin Sun. "Transformation of Nitrogen and Its Effects on Metal Elements by Coated Urea Application in Soils from South China." In Molecular Environmental Soil Science at the Interfaces in the Earth’s Critical Zone. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-05297-2_42.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Csitári, Gábor, Katalin Debreczeni, and István Sisák. "Effect of herbicides on the urea transformation in soil." In Progress in Nitrogen Cycling Studies. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-011-5450-5_30.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Urea in soils"

1

Mackevičius, Rimantas, Danutė Sližytė, Tatyana Zhilkina, and Vadim Turchin. "Investigation of influence of additives on properties of multi-molecular organic solutions used for permeation grouting." In The 13th international scientific conference “Modern Building Materials, Structures and Techniques”. Vilnius Gediminas Technical University, 2019. http://dx.doi.org/10.3846/mbmst.2019.112.

Full text
Abstract:
Permeation grouting for stabilization of dispersive sandy and gravely soils is in use from beginning of 19th century and has high importance for various underpinning, tunneling, and structural strengthening works. As materials for permeation grouting are applied not only cement mortar or silica gel in many compositions but multi-molecular organic solutions too. From multi-molecular organic solutions for permeation grouting are in use various synthetic resins such as acrylic, urea-formaldehyde, or other polymer resins. Urea-formaldehyde resin has right physical and mechanical properties for app
APA, Harvard, Vancouver, ISO, and other styles
2

Chang-Ai, Zhang, Xin Shurong, and Li Yan. "Nitrogen Release of Controlled Release Coated Urea in Soil." In 2016 International Conference on Smart City and Systems Engineering (ICSCSE). IEEE, 2016. http://dx.doi.org/10.1109/icscse.2016.0043.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Arab, Mohamed G. "Soil Stabilization using Calcium Carbonate Precipitation via Urea Hydrolysis." In The 4th World Congress on Civil, Structural, and Environmental Engineering. Avestia Publishing, 2019. http://dx.doi.org/10.11159/icgre19.149.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Vernekar, Sulaxana R., Ingrid Anne P. Nazareth, Jivan S. Parab, and Gourish M. Naik. "Error analysis in soil urea prediction based on RF spectroscopy." In 2016 IEEE International Conference on Advances in Electronics, Communication and Computer Technology (ICAECCT). IEEE, 2016. http://dx.doi.org/10.1109/icaecct.2016.7942591.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Ajdary, Khalil, and Hamid Zare Abianeh. "Modeling of nitrogen leaching by using urea fertilizer in sandy loam soil." In Proceedings of the III International Conference on Environmental, Industrial and Applied Microbiology (BioMicroWorld2009). WORLD SCIENTIFIC, 2010. http://dx.doi.org/10.1142/9789814322119_0017.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Zhou, Xuan, Liang-Huan Wu, Ruo-Hui Lu, and Feng Dai. "Effects of Biochemical Inhibitors on Transformation of Urea Nitrogen in Yellow Clayey Soil." In 2015 International Conference on Energy, Environmental & Sustainable Ecosystem Development (EESED 2015). WORLD SCIENTIFIC, 2015. http://dx.doi.org/10.1142/9789814723008_0121.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

VAGUSEVIČIENĖ, Ilona, and Aistė JUCHNEVIČIENĖ. "THE EFFECT OF NITROGEN FERTILISERS ON THE GRAIN YIELD OF DIFFERENT CULTIVARS OF WINTER WHEAT." In Rural Development 2015. Aleksandras Stulginskis University, 2015. http://dx.doi.org/10.15544/rd.2015.032.

Full text
Abstract:
The article deals with the effect of nitrogen fertilizer on the yield of different cultivars of winter wheat. Field experiments were conducted in 2011–2013 at the Experimental Station of Aleksandras Stulginskis University in carbonate shallow gleyic leached soil, (Calc(ar)i-Epihypogleyic Luvisol). The object of the investigation was winter wheat cultivars ‘Zentos’ and ‘Ada’. In sowing time the wheat was treated with granular superphosphate (P60) and potassium chloride (K60), and in spring, after the vegetative growth had resumed, in tillering time (BBCH 23–15) with ammonium nitrate (N60). Addi
APA, Harvard, Vancouver, ISO, and other styles
8

JUCHNEVIČIENĖ, Aistė, and Ilona VAGUSEVIČIENĖ. "THE DYNAMICS OF PHOTOSYNTHETIC PIGMENTS IN WINTER WHEAT LEAVES WHEN USING NITROGEN FERTILISERS." In Rural Development 2015. Aleksandras Stulginskis University, 2015. http://dx.doi.org/10.15544/rd.2015.033.

Full text
Abstract:
The paper investigates the effect of nitrogen fertilisers on the amount of photosynthetic pigments in winter wheat leaves. The research was carried out in the period between 2012 and 2013 at the Experimental Station of Aleksandras Stulginskis University in carbonate shallow gleyic leached soil, (Calc(ar)i-Epihypogleyic Luvisol). The object of investigation: winter wheat cultivars ‘Zentos’ and ‘Ada’. Granular superphosphate (P60) and potassium chloride (K60) fertilisers were spread during sowing, while amonium nitrate (N60) was used in tillering time (BBCH 23–25), after the vegetative growth ha
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Urea in soils' for particular source types:
Journal articles Dissertations / Theses
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography