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1

Musser, Wesley N., Vickie J. Alexander, Bernard V. Tew, and Doyle A. Smittle. "A Mathematical Programming Model for Vegetable Rotations." Journal of Agricultural and Applied Economics 17, no. 1 (1985): 169–76. http://dx.doi.org/10.1017/s0081305200017180.

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AbstractRotations have historically been used to alleviate pest problems in crop production. This paper considers methods of modeling rotations in linear programming models for Southeastern vegetable production. In such models, entering each possible crop rotation as a separate activity can be burdensome because of the large numbers of possible rotational alternatives. Conventional methodology for double crop rotations reduces the number of activities but must be adapted to accommodate triple crop rotational requirements in vegetable production. This paper demonstrates these methods both for a
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2

Holod, R., О. Bilinska, and H. Shubala. "The efficiency of the crop rotations with short rotation with different levels of their saturation of cereals and crops in the conditions of Western Forest-Steppe." Interdepartmental thematic scientific collection "Agriculture" 1, no. 92 (2017): 62–68. http://dx.doi.org/10.31073/zem.92.62-68.

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There were analyzed and disclosed the basic components of arable farming systems and their Meaning, the current state and scientific principles in the context of the further development of field crop cultivation in the conditions of Western Forest-Steppe.
 The purpose of research. To study an effect of alternation of crop in crop rotation in conditions of brief rotation on the soil water regime, productivity and economic efficiency.
 Methods. Field, laboratory, comparative and analytical.
 Results. The results of researches on study of productivity of four-field crop rotations w
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3

Andersson, Torsten N., and Per Milberg. "Weed flora and the relative importance of site, crop, crop rotation, and nitrogen." Weed Science 46, no. 1 (1998): 30–38. http://dx.doi.org/10.1017/s0043174500090135.

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Weed species composition and density were recorded in three identical field experiments established 26 to 30 yr ago in southern Sweden. Each experiment compared three 6-yr crop rotations and four rates of nitrogen application. The rotations differed by having (1) a 2-yr rotational grassland, (2) a 2-yr mixed rotational grassland (legume/grass), or (3) spring wheat followed by fallow. Other crops in the rotations were winter turnip rape, winter wheat, spring oats, and spring barley. Using multivariate analyses, the relative importance of site, crop, crop rotation, and nitrogen application rate
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4

Plaksina, V. S., and A. N. Astashov. "The effect of rotation length of crop rotations and weather conditions on the productivity of winter wheat." Siberian Herald of Agricultural Science 53, no. 5 (2023): 5–12. http://dx.doi.org/10.26898/0370-8799-2023-5-1.

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The results of the study of changes in winter wheat grain yield depending on the rotation length of crop rotations in the Lower Volga region are presented. As a result of 12 years of research (20082019) it was found that the maximum yield was obtained in four- and five-field crop rotations with the inclusion of leguminous crops - 2.73 and 2.79 t/ha, respectively. During the analysis of variance, different effects of growing conditions and rotation length on winter wheat yields were noted. The influence of vegetation conditions accounted for 98.6%. The effect of crop rotation was also significa
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5

Shevchenko, M. S., L. M. Decyatnik, and K. A. Derevenets-Shevchenko. "Modern systems of agriculture and a new interpretation of crop rotation value of agricultural crops." Scientific Journal Grain Crops 4, no. 2 (2020): 319–29. http://dx.doi.org/10.31867/2523-4544/0141.

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Based on a broad experimental study of crop rotation productivity in different locations of the Steppe zone, a correlative model for estimating the role of predecessors in the formation of post-crop yields has been developed. The connection between quality of agrotechnologies and change of degree of crop rotation competitiveness of culture is presented. A retrospective analysis of the efficiency of farming and crop rotation systems showed that the constant improvement of varieties and hybrids of crops and technologies for their cultivation created objective agrobiological grounds for reassessm
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6

Maynard, Leigh J., Jayson K. Harper, and Lynn D. Hoffman. "Impact of Risk Preferences on Crop Rotation Choice." Agricultural and Resource Economics Review 26, no. 1 (1997): 106–14. http://dx.doi.org/10.1017/s1068280500000873.

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Stochastic dominance analysis of five crop rotations using twenty-one years of experimental yield data returned results consistent with Pennsylvania cropping practices. The analysis incorporated yield risk, output price risk, and rotational yield effects. A rotation of two years corn and three years alfalfa hay dominated for approximately risk neutral and risk averse preferences, as did participation in government programs under the 1990 Farm Bill. Crop rotation selection appeared to impact net revenues more than the decision to participate in government programs.
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7

Чибис, Валерий, Valeriy Chibis, Светлана Чибис, et al. "ECONOMIC EFFICIENCY OF FIELD CROP ROTATION IN OPTIMIZATION OF OF SOWING AREAS STRUCTURE." Vestnik of Kazan State Agrarian University 12, no. 4 (2018): 45–49. http://dx.doi.org/10.12737/article_5a5f05dc679404.30714646.

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In a long-term places, located on the experimental fields of Siberian Research Institute of Agriculture (Omsk), the schemes of field crop rotations were modernized by introducing oil crops (rapeseed, soybean) into rotation and replacing the repeated wheat crops with barley and oats. Accounting of grain crops productivity and accompanying observations were carried out in three field rotations of different lengths of rotation (four- and five-field) and on permanent sowing. The repetition of the experiments is fourfold. The system of agrotechnical measures recommended for the zone of the forest-s
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8

Bullock, D. G. "Crop rotation." Critical Reviews in Plant Sciences 11, no. 4 (1992): 309–26. http://dx.doi.org/10.1080/07352689209382349.

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9

Bullock, D. G. "Crop Rotation." Critical Reviews in Plant Sciences 11, no. 4 (1992): 309. http://dx.doi.org/10.1080/713608037.

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10

Liu, Yiqing, Wenzhi Zhao, Shuo Chen, and Tao Ye. "Mapping Crop Rotation by Using Deeply Synergistic Optical and SAR Time Series." Remote Sensing 13, no. 20 (2021): 4160. http://dx.doi.org/10.3390/rs13204160.

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Crop rotations, the farming practice of growing crops in sequential seasons, occupy a core position in agriculture management, showing a key influence on food security and agro-ecosystem sustainability. Despite the improvement in accuracy of identifying mono-agricultural crop distribution, crop rotation patterns remain poorly mapped. In this study, a hybrid convolutional neural network (CNN) and long short-term memory (LSTM) architecture, namely crop rotation mapping (CRM), were proposed to synergize the synthetic aperture radar (SAR) and optical time series in a rotational mapping task. The p
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11

Brooks, Steven A., Merle M. Anders, and Kathleen M. Yeater. "Influences from Long-Term Crop Rotation, Soil Tillage, and Fertility on the Severity of Rice Grain Smuts." Plant Disease 95, no. 8 (2011): 990–96. http://dx.doi.org/10.1094/pdis-09-10-0689.

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False smut (Ustilaginoidea virens) and kernel smut (Neovossia horrida) are diseases of rice (Oryza sativa) that reduce both grain yield and quality. Susceptible rice cultivars are in widespread use on production acreage in the United States, and the effects from crop management practices on smut control are poorly understood. We studied the long-term effects of crop rotation, soil tillage, and fertility level on rice smut severity. The highest levels of false smut observed in this study were on cultivars grown in rotation with soybean, on traditionally tilled soils, with high fertilizer treatm
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12

Przednowek, D. W. A., M. H. Entz, B. Irvine, D. N. Flaten, and J. R. Thiessen Martens. "Rotational yield and apparent N benefits of grain legumes in southern Manitoba." Canadian Journal of Plant Science 84, no. 4 (2004): 1093–96. http://dx.doi.org/10.4141/p04-032.

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Knowledge of rotational N benefits of grain legumes can assist in crop rotation planning and N fertilizer management. Four annual grain legumes were tested in Manitoba field trials over 3 yr. Field pea provided the largest and most consistent apparent N benefit to a succeeding wheat crop; soybean provided relatively little N benefit. The apparent N benefits of chickpea and dry bean were inconsistent, although chickpea shows greater potential in dry conditions. Key words: Wheat rotations, N credit, crop rotation
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13

Doucet, Colleen, Susan E. Weaver, Allan S. Hamill, and Jianhua Zhang. "Separating the effects of crop rotation from weed management on weed density and diversity." Weed Science 47, no. 6 (1999): 729–35. http://dx.doi.org/10.1017/s0043174500091402.

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Crop rotation is thought to reduce weed density and maintain species diversity, thus preventing the domination of a few problem weeds. Because cropping sequence dictates other agricultural management practices, variations in weed populations between cropping systems may be the direct result of crop rotation, the result of different weed management practices associated with crop rotation, or both. Studies that fail to separate the effects of crop rotation from weed management may generate misleading results. A 10-yr crop rotation study was undertaken to study the dynamics of the standing weed v
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14

Peters, R. D., A. V. Sturz, M. R. Carter, and J. B. Sanderson. "Crop rotation can confer resistance to potatoes from Phytophthora erythroseptica attack." Canadian Journal of Plant Science 85, no. 2 (2005): 523–28. http://dx.doi.org/10.4141/p04-103.

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The influence of 2- and 3-yr crop rotations and conservation tillage practices on the severity of pink rot of potato (causal agent: Phytophthora erythroseptica) was examined in Prince Edward Island, Canada. The 2-yr rotation crops included spring barley and potato (cv. Russet Burbank), and the 3-yr rotation was comprised of barley (undersown with red clover), red clover and potato. In the potato year only, the main plots were split to examine conventional and minimum tillage (sub-plot) treatments. Soil samples and potato tubers were extracted from field plots 6-7 yr after the initiation of the
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15

Langemeier, Michael R., Xiaoyi Fang, and Michael O’Donnell. "Comparison of Long-Run Net Returns of Conventional and Organic Crop Rotations." Sustainability 12, no. 19 (2020): 7891. http://dx.doi.org/10.3390/su12197891.

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This study compares the long-run net returns to land of conventional corn/soybean and corn/soybean/wheat crop rotations to that of an organic corn/soybean/wheat crop rotation. The net returns to land for the organic crop rotation were found to be approximately $68 and $74 per acre higher than those of the conventional corn/soybean and conventional corn/soybean/wheat crop rotations, respectively. Average net return estimates are sensitive to price, yield, and cost assumptions. Organic crop prices would have to drop more than 17.8 percent and organic crop yields would have to drop more than 16.8
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16

Demydenko, O. V. "Dynamics of crop yields depending on fertilizer, cultivation method and crop rotation type." Agriculture and plant sciences: theory and practice, no. 2 (February 8, 2024): 32–45. http://dx.doi.org/10.54651/agri.2024.02.05.

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To analyse the series of dynamics of winter wheat, peas, sugar beet, sunflower and soybeans under diffe­rent types of crop rotation, tillage and fertilization in a long-term stationary experiment. Methods. Statistical ana­lysis (non-parametric statistics, ARIMA method, singular spectral method) in the central part of the Left-Bank Forest-Steppe. Results. The yield of winter wheat in a crop rotation with peas under systematic ploughing was 4.67–5.15 t/ha, surface tillage interrupted by ploughing for sugar beet – 5.0–5.05 t/ha, with constant surface tillage for all crops in the crop rotation – 4
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17

Azizov, Zakiulla Mtyullovich, Vladimir Viktorovich Arkhipov, and Ildar Garifullovich Imashev. "Efficiency of grain production in crop rotations of the dry steppe of the Lower Volga region." Agrarian Scientific Journal, no. 2 (February 18, 2021): 4–8. http://dx.doi.org/10.28983/asj.y2021i2pp4-8.

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The analysis of the influence of species and the fullness of crop rotations on the productivity and efficiency of grain crops is given. It was revealed that the highest grain yield is observed in a 4-field grain-fallow crop rotation. The absence of a field of late spring crops (millet) in 2- and 3-field crop rotations reduces grain yield in comparison with 4- and 7-field crops, both on average over 28 years (1991-2018), and in wet and middle years. The bioenergy coefficient, judging by the costs and grain yield, was highest in a 2-field grain-fallow crop rotation (4.94), then in a 4-field rota
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18

OLESEN, J. E., I. A. RASMUSSEN, M. ASKEGAARD, and K. KRISTENSEN. "Whole-rotation dry matter and nitrogen grain yields from the first course of an organic farming crop rotation experiment." Journal of Agricultural Science 139, no. 4 (2002): 361–70. http://dx.doi.org/10.1017/s002185960200268x.

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The possibilities for increasing total grain yield in organic cereal production through manipulation of crop rotation design were investigated in a field experiment on different soil types in Denmark from 1997 to 2000. Three experimental factors were included in the experiment in a factorial design: (1) proportion of grass-clover and pulses in the rotation, (2) catch crop (with and without) and (3) manure (with and without). Three four-course rotations were compared. Two of the rotations had 1 year of grass-clover as a green manure crop, either followed by spring wheat or by winter wheat. The
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19

Darguza, Madara, and Zinta Gaile. "The Productivity of Crop Rotation Depending on the Included Plants and Soil Tillage." Agriculture 13, no. 9 (2023): 1751. http://dx.doi.org/10.3390/agriculture13091751.

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Crop diversification in rotations is an important part of sustainable crop production. The aim of this research was to analyse soil tillage and crop rotation influence on the yield (t ha−1) of different field crops, their energy yield (GJ ha−1) and the economical profitability (EUR ha−1) of crop rotation. The field trial was conducted in Latvia during four harvest seasons (2017–2020) in a long-term experiment that started in 2009. Three crop rotations with a different share of winter wheat (Triticum aestivum) were studied: 100% wheat (repeated sowings), 67% wheat (three-year rotation with wint
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20

Voitovyk, Mykhailo, Ivan Prymak, Viktoriia Melnyk, Оleksandr Panchenko, and Oleksii Tsyuk. "Humus state and nutrient regime of typical chernozem depending on fertilisation in short crop rotations." PLANT AND SOIL SCIENCE 14, no. 4 (2023): 33–44. http://dx.doi.org/10.31548/plant4.2023.33.

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The fertiliser system is the most effective factor in the intensification of crop cultivation technologies. The basis for scientifically sound fertiliser application systems, along with obtaining the planned level of yield of the appropriate quality, is the study of the organic matter content and soil nutrient regime during crop rotation. The purpose of this study was to determine the mineral nitrogen, mobile phosphorus, exchangeable potassium, and humus content in typical chernozem under different fertilisation systems in short-term crop rotations. To solve the problem of soil fertility, an i
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21

Ghosh, Probir Kumar, Kali Krishna Hazra, Madasur Subbabhat Venkatesh, et al. "Grain legume inclusion in cereal–cereal rotation increased base crop productivity in the long run." Experimental Agriculture 56, no. 1 (2019): 142–58. http://dx.doi.org/10.1017/s0014479719000243.

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AbstractSustainability of cereal-based cropping systems remains crucial for food security in South Asia. However, productivity of cereal–cereal rotations has declined in the long run, demonstrating the need for a sustainable alternative. Base crop, that is, common crop in different crop rotations, productivity could be used as a sustainability indicator for the assessment of different long-term crop rotations. This study aimed to evaluate the impact of grain legume inclusion in lowland rice–wheat (R-W) and upland maize–wheat (M-W) rotation on system’s base crop (rice in lowland and wheat in up
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22

Kuzmenko, N. N. "Replenishment of Humus due to Crop-Root Residues in Flax and Crop Rotations." Агрохимия, no. 7 (July 1, 2023): 3–8. http://dx.doi.org/10.31857/s0002188123070074.

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In the Central region of the Non-Chernozem zone of Russia on sod-podzolic light loamy soil in a long stationary experiment in flax crop rotations, the process of replenishing humus due to crop-root residues was studied. Alternation of crops in the crop rotation in 2004–2011: pure steam – winter rye with sowing of perennial grasses (red clover and timofeevka) – perennial grasses of the 1st year of use – perennial grasses of the 2nd year of use – flax – potato – barley – oats. In 2012–2018, potatoes were excluded from the crop rotation. The contribution of cultivated crops to the accumulation of
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23

Makukh, Y. Р., Y. I. Tkalich, S. О. Remeniuk, M. V. Buzynnyi, S. М. Senchuk, and О. М. Atamanіuk. "Decrease in fertility of typical chernozem due to long-term anthropogenic pressure in grain-beet crop rotations." Agrology 7, no. 1 (2024): 27–33. http://dx.doi.org/10.32819/202404.

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The saturation of sugar beet rotations under different fertilizer application systems and long-term cultivation induces significant changes in soil properties, leading to decreases in humus content, mineral nitrogen, phosphorus, and potassium. The study was conducted in a stationary multifactorial experiment in grain-beet crop rotations: crop rotation, row-crop, and grain-row crop rotations with the application of 40 t/ha of manure under sugar beets + NPK 100:90:90 and a variant without fertilizers. The paper presents the results of monitoring changes in humus content during each rotation, red
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24

Gómez, Robin, Matt Liebman, David N. Sundberg, and Craig A. Chase. "Comparison of crop management strategies involving crop genotype and weed management practices in conventional and more diverse cropping systems." Renewable Agriculture and Food Systems 28, no. 3 (2012): 220–33. http://dx.doi.org/10.1017/s1742170512000142.

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AbstractCropping systems that include forage legumes and small grains in addition to corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] can achieve similar or higher crop productivity and economic return than simpler corn–soybean rotations. We hypothesized that this rotation effect occurs regardless of the crop genotype planted and the herbicide and cultivation regime selected for weed management. To test this hypothesis, we conducted a 3-year experiment that compared three cropping systems: a conventional 2-year corn–soybean rotation, a 3-year corn–soybean–oat (Avena sativa L.)/red clove
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25

KALİMOV, Niyazbek, Konstantin BODRYY, Evgeniya SHİLO, Damir KALDYBAEV, and Mariya BODRAYA. "Impact of tillage and crop rotations on soil organic matter content in Northern Kazakhstan's chernozem soils: A 10-year study (2011-2021)." EURASIAN JOURNAL OF SOIL SCIENCE (EJSS) 13, no. 1 (2023): 35–42. http://dx.doi.org/10.18393/ejss.1387017.

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This extensive 10-year study conducted in Northern Kazakhstan investigates the intricate relationship between soil management techniques, crop rotations, and soil organic matter (SOM) content in Chernozem soils, an essential agricultural resource in the region. The experiments were established at the Karabalyk Agricultural Experimental Station, characterized by a arid continental climate. The study systematically examined the impact of two primary soil management techniques, conventional tillage (CT) and no-tillage (NT), in combination with various crop rotations. The crop rotations tested inc
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Riddihough, G. "EVOLUTION: Crop Rotation." Science 320, no. 5872 (2008): 21c. http://dx.doi.org/10.1126/science.320.5872.21c.

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Nakhaev, M. R. "Crop rotation optimization on the Chechen Republic slope landscapes." Вестник российской сельскохозяйственной науки, no. 2 (April 15, 2023): 46–50. http://dx.doi.org/10.31857/2500-2082/2023/2/46-50.

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Optimization of crop rotations of grain specialization is currently an urgent task in the light of modern economic realities. In this regard, experiments were conducted on the slope landscapes of the Chechen Republic, in which four crop rotations and two plots with permanent crops of winter wheat and spring barley were studied. Studies of crop contamination, crop structure, grain yield from a unit of crop rotation area have shown that the most optimal crop rotation is a five-field grain-pair crop rotation: black steam - winter wheat - spring wheat - peas - spring barley. The yield of grain per
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28

Archer, David W., Mark A. Liebig, Donald L. Tanaka, and Krishna P. Pokharel. "Crop diversity effects on productivity and economics: a Northern Great Plains case study." Renewable Agriculture and Food Systems 35, no. 1 (2018): 69–76. http://dx.doi.org/10.1017/s1742170518000261.

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AbstractIncreasing crop diversity has been proposed to increase the sustainability of cropping systems. If producers are to adopt these systems, they should also be economically viable. In this study conducted near Mandan, North Dakota, four no-till cropping systems with varying levels of crop diversity were evaluated over a 12-yr period to quantify system effect on crop productivity, input use, production costs, and economic risks and returns. Cropping system treatments included a small grain–fallow rotation (SG–Fallow) and a continuous spring wheat (Triticum aestivumL.) rotation (Cont SW) as
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29

Larkin, Robert P. "Use of Crop Rotations, Cover Crops and Green Manures for Disease Suppression in Potato Cropping Systems." Global Journal of Agricultural Innovation, Research & Development 8 (November 15, 2021): 153–68. http://dx.doi.org/10.15377/2409-9813.2021.08.12.

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Crop rotations and the inclusion of cover crops and green manures are primary tools in the sustainable management of soil-borne diseases in crop production systems. Crop rotations can reduce soil-borne disease through three general mechanisms: (1) serving as a break in the host-pathogen cycle; (2) by altering the soil physical, chemical, or biological characteristics to stimulate microbial activity and diversity; or (3) directly inhibiting pathogens through the release of suppressive or toxic compounds or the enhancement of specific antagonists. Brassicas, sudangrass, and related plant types a
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Kegode, George O., Frank Forcella, and Sharon Clay. "Influence of crop rotation, tillage, and management inputs on weed seed production." Weed Science 47, no. 2 (1999): 175–83. http://dx.doi.org/10.1017/s0043174500091591.

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Approaches to crop production that successfully reduce weed seed production can benefit farming systems by reducing management inputs and costs. A 5-yr rotation study was conducted in order to determine the effects that interactions between crop rotation, tillage, and amount of herbicide and fertilizer (management inputs) have on annual grass and broad-leaved weed seed production and fecundity. There were 10 crop rotation and tillage system combinations and three levels of management inputs (high, medium, and low). Green and yellow foxtail were the major weed species, and together they yielded
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Peng, Huanhuan, Jinran Xiong, Jiayi Zhang, et al. "Water Requirements and Comprehensive Benefit Evaluation of Diversified Crop Rotations in the Huang-Huai Plain." Sustainability 15, no. 13 (2023): 10229. http://dx.doi.org/10.3390/su151310229.

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An intensified farming system can significantly increase crop productivity but can also cause major groundwater overdraft for irrigation and the loss of crop diversity. It is imperative to develop alternative crop rotations beyond the simplified conventional winter wheat–summer maize (W–M) rotation for alleviating the groundwater over-extraction in China’s Huang-Huai Plain. This study systematically quantified crop water requirement (ETc) and irrigation water requirement (ETaw) of eight crops from 2013 to 2018 based on the SIMETAW model applied to the Shangqiu area in the Huang-Huai Plain. Fou
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32

Peachey, B. Edward, Ray D. William, and Carol Mallory-Smith. "Effect of Spring Tillage Sequence on Summer Annual Weeds in Vegetable Row Crop Rotations." Weed Technology 20, no. 1 (2006): 204–14. http://dx.doi.org/10.1614/wt-04-111r2.1.

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The effects of spring tillage sequence on summer annual weed populations were evaluated over two cycles of a 3-yr crop rotation of snap beans, sweet corn, and winter wheat. Continuous no-till (N) planting of vegetable crops each spring (NNNN) reduced summer annual weed density 63 to 86% compared to that of continuous conventional tillage (CCCC), depending upon site and herbicide level. Hairy nightshade populations were reduced by 88 to 96% when spring tillage was eliminated from the crop rotation. The effects of the NNNN spring tillage sequence on weed density were similar at two sites even th
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33

Benaragama, Dilshan I., William E. May, Robert H. Gulden, and Christian J. Willenborg. "Functionally diverse flax-based rotations improve wild oat (Avena fatua) and cleavers (Galium spurium) management." Weed Science 70, no. 2 (2022): 220–34. http://dx.doi.org/10.1017/wsc.2021.79.

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AbstractWild oat (Avena fatua L.) and false cleavers (Galium spurium L.) are currently a challenge to manage in less competitive crops such as flax (Linum usitatissimum L.). Increasing the functional diversity in crop rotations can be an option to improve weed management. Nonetheless, this strategy had not been tested in flax in western Canada. A 5-yr (2015 to 2019) crop rotation study was carried at three locations in western Canada to determine the effect of diverse flax-based crop rotations with differences in crop species, crop life cycles, harvesting time, and reduced herbicides on managi
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Ilyinskaya, Izida, and Emma Gaevaya. "The productivity of crop rotations on the eroded slope of ordinary chernozems depending on agricultural practices." BIO Web of Conferences 32 (2021): 02007. http://dx.doi.org/10.1051/bioconf/20213202007.

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Field experiments were carried out in the Rostov region on the slope of ordinary chernozems in the system of contour-strip organization of the territory in 2011-2020. The aim of the research was the development of agrotechnical methods (design of crop rotation, the method of basic tillage and the background of fertilizers), which ensure high productivity of crop rotations on the eroded slope of ordinary chernozems and the preservation of fertility. The experiment included three factors: the design of the crop rotation, the method of the main tillage, the background of mineral fertilizers. It w
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Canalli, Lutécia Beatriz dos Santos, Gustavo Vaz da Costa, Bruno Volsi, André Luís Mendes Leocádio, Carmen Silvia Vieira Janeiro Neves, and Tiago Santos Telles. "Production and profitability of crop rotation systems in southern Brazil." Semina: Ciências Agrárias 41, no. 6 (2020): 2541. http://dx.doi.org/10.5433/1679-0359.2020v41n6p2541.

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Crop rotation is one of the pillars of conservation agriculture. This practice has offered a series of advantages in terms of improving soil physical, chemical, and biological conditions. These advantages result in yield increases for all economic crops involved in the rotation systems and may also reduce production costs. In this context, the aim of this study was to compare the profitability of crop rotation systems with different levels of crop diversification. The experimental design was randomized blocks, with five treatments and four replications. The treatments included one less diversi
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36

Mashchenko, Yu V., I. M. Semeniaka, M. I. Cheriachukin, and O. M. Hryhoreva. "Effectiveness of short-term crop rotations under different fertilization systems in the insufficient moisture zone of the Right-Bank Steppe of Ukraine." Scientific Journal Grain Crops 6, no. 1 (2022): 169–76. http://dx.doi.org/10.31867/2523-4544/0220.

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Topicality. In the condition of insufficient moisture in the Right Bank Steppe of Ukraine, agriculture is associated with weather risks, non-compliance with the appropriate structure of sown areas and fertilization systems, which makes it difficult to obtain high and stable yields of agricultural crops. The development of agricultural systems is the basis for increasing both yield levels and the competitiveness of the agricultural industry as a whole. Aim. To study the influence of fertilization systems on the fertility of ordinary chernozems and crop productivity in biological short-term crop
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37

Prymak, I., L. Karpuk, M. Yermolaev, A. Pavlichenko, and L. Filipova. "Main criteria for evaluation of efciency and contradictions in the process of crop rotation implementation." Agrobìologìâ, no. 1(163) (May 25, 2021): 7–14. http://dx.doi.org/10.33245/2310-9270-2021-163-1-7-14.

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The nature of subjective positioning on the role of crop rotations in agriculture from many points of view, namely – agrochemical, biological, geological and energetic. This leads to the belief that crop rotation arose as a need for reasonable human interaction with nature, a careful attitude to it. However, a comprehensive ecological and biosphere approach to understanding the essence of crop rotation requires the resolution of certain contradictions that arise in the implementation of modern farming systems. Based on the data of long-term feld experiments, the main indicators of the biologic
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38

Mamiev, Dmitry Mairbekovich. "CROP ROTATIONS IN ADAPTIVE LANDSCAPE FARMING SYSTEMS." SCIENTIFIC LIFE 19, no. 4 (2024): 607–12. http://dx.doi.org/10.35679/1991-9476-2024-19-4-607-612.

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For new generation farming systems, crop rotations are developed taking into account the agronomically expedient placement of crops according to their predecessors, the timing of return to the field during rotation, the adaptability of crops to specific soil and climatic conditions, as well as the biological and man-made possibility of obtaining the greatest agronomic and economic effect. The aim of the research was to study various types of crop rotations in the foothills, which ensure an increase in soil fertility and crop yields. According to all the studied parameters, the advantage was th
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39

Voitovyk, M. V., D. T. Gentosh, L. M. Krasiuk, and O. A. Tsyuk. "Root rot of winter wheat and peas in short-rotation crop rotations." Agriculture and plant sciences: theory and practice, no. 3 (July 24, 2023): 15–21. http://dx.doi.org/10.54651/agri.2023.03.02.

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Аіm. The research was to establish the influence of fertilization systems and methods of main tillage in short-rotation crop rotation on damage to winter wheat and pea plants by root rot. Methods. Field, analytical and statistical. The research was conducted in 2016–2018 at the experimental fields of the Bila Tserkva’s National Agrarian University according to the following scheme: Factor A. Fertilizer systems. 1. Without the use of fertilizers; 2. Organo-mineral; 3. Mineral. Factor B. Systems of basic tillage. 1. Differentiated (control); 2. Police-nonpolice; 3. Shallow shelfless. Short-rotat
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40

Soon, Y. K., and G. W. Clayton. "Eight years of crop rotation and tillage effects on crop production and N fertilizer use." Canadian Journal of Soil Science 82, no. 2 (2002): 165–72. http://dx.doi.org/10.4141/s01-047.

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Although tillage systems and crop rotations can affect crop production and uptake of nutrients, their long-term effects, particularly their interactions, are not well-documented. Therefore, we measured the N, P, and K contents and yields of crops through two rotation cycles, especially wheat (Triticum aestivum L.), of four crop rotations managed under conventional tillage (CT) and no-tillage (NT) systems. The study was conducted 1993 through 2000 on a sandy loam soil in northwestern Alberta, Canada. The four-course crop rotations were: (i) field pea (Pisum sativum L.)-wheat-canola (Brassica ra
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41

Kozlova, Zoya V., and Vlada V. Kolocheva. "Influence of forage crop rotations on crop yields and phytosanitary conditions of soils in the Baikal region." E3S Web of Conferences 296 (2021): 01004. http://dx.doi.org/10.1051/e3sconf/202129601004.

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The article considers the practical aspects of ensuring the preservation of natural ecosystems based on the use of organic farming technologies. It presents the results of research in the forest-steppe zone of the Baikal region for 2011-2018. On the basis of the phytosanitary state of crops studying analysis, it was found that the correct alternation of crops in crop rotation suppresses the level of weeds, thereby not affecting the productivity of agricultural crops. The paper reveals the characteristics of agrophysical and water properties of gray forest soil, the influence of forage crop rot
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42

Tulkubayeva, Saniya Abiltaevna, Yuriy Valerievich Tulayev, Svetlana Vladimirovna Somova, and Vladimir Alekseevich Vykhodtsev. "The influence of field crop rotations on the contamination of crops in the conditions of the Kostanay region." Agrarian Scientific Journal, no. 2 (March 21, 2023): 67–74. http://dx.doi.org/10.28983/asj.y2022i2pp67-74.

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The research was carried out in order to study the influence of precursors of agricultural crops cultivated in grain and fruit-bearing crop rotations using No-till system with elements of precision farming on the contamination of crops in the conditions of southern chernozems of Kostanay region. Two types of crop rotations were studied – 4-pole grain-steam (steam – wheat – wheat – wheat) and 4-pole fruit-bearing (peas – wheat-oilseed flax – wheat). On each crop rotation crop, variants with different levels of mineral nutrition were laid-without fertilizers (control) and P15. All records and ob
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43

Łukowiak, R., W. Grzebisz, and P. Barłóg. "Magnesium management in the soil-crop system – a crop rotation approach." Plant, Soil and Environment 62, No. 9 (2016): 395–401. http://dx.doi.org/10.17221/390/2016-pse.

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44

JANZEN, H. H., D. J. MAJOR, and C. W. LINDWALL. "COMPARISON OF CROP ROTATIONS FOR SORGHUM PRODUCTION IN SOUTHERN ALBERTA." Canadian Journal of Plant Science 67, no. 2 (1987): 385–93. http://dx.doi.org/10.4141/cjps87-056.

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Grain sorghum (Sorghum bicolor L. Moench.) was evaluated in six rotations under rainfed conditions at the Lethbridge Research Station from 1978 to 1984. The rotations included continuous sorghum, sorghum-fallow, sorghum-barley, sorghum-spring wheat-fallow, sorghum-fallow-spring wheat and sorghum-fallow-winter wheat. The highest total production was achieved with the sorghum-barley rotation. This was followed by the continuous sorghum and sorghum-fallow-winter wheat rotations. The 3-yr rotations were not significantly different from each other but the sorghum-fallow-winter wheat rotation appear
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45

Lukyanov, V. A., and L. B. Nitchenko. "The effect of crop rotations and mineral fertilizers on economic and energy efficiency indicators when cultivating winter wheat in the Central Blackearth region." Grain Economy of Russia, no. 6 (December 20, 2023): 90–98. http://dx.doi.org/10.31367/2079-8725-2023-89-6-90-98.

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Economic efficiency is an integral method of analyzing agricultural technologies, especially against the rising prices for plant protection products, seeds, fertilizers, and fuels and lubricants. Identification and implementation of the most effective methods of field crops, growing using crop rotation and fertilizers remains an urgent task. The purpose of the current research was to study the effect of crop rotations and doses of mineral fertilizers on productivity of winter wheat grain, to analyze the economic and energy efficiency of its cultivation in the conditions of the Central Blackear
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46

Mustafayev, Zh S., A. A. Sagaev, Y. N. Alimbaev, and V. V. Pchelkin. "BASIC CONSTRUCTION PRINCIPLES FOR MULTI-FUNCTIONAL HYDRO AGROLANDSCAPE SYSTEMS." REPORTS 6, no. 334 (2020): 115–23. http://dx.doi.org/10.32014/2020.2518-1483.144.

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Based on the principles of natural analogies, the necessary diversity, the ability of soil formation and the integration of knowledge, multifunctional hydroagrolandscape systems have been developed, including multifunctional systems (crop rotation fields and irrigation technique), which ensure the fulfillment of the ecological and economic functions of the soils of hydroagrolandscape systems. Multifunctional hydro-agrolandscape systems for the purposeful regulation of the soil-forming process on irrigated crop rotation fields by designing crop rotation and an irrigation system on irrigated lan
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47

Dyck, Miles F., and Dick Puurveen. "Long-term rotation impacts soil total macronutrient levels and wheat response to applied nitrogen, phosphorus, potassium, sulfur in a Luvisolic soil." Canadian Journal of Soil Science 100, no. 4 (2020): 430–39. http://dx.doi.org/10.1139/cjss-2019-0155.

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Over the last 20–30 yr, increased intensification and diversity of crop rotations, along with increasingly higher yielding crop cultivars on the Northern Great Plains, has increased nutrient removal from cropping systems, but also increased crop residues returned to the soil, affecting soil nutrient cycling, soil carbon (C) and nutrient balances. The University of Alberta Breton Classical Plots, established in 1929, consist of two crop rotations of varying diversity and intensity: (1) wheat–fallow (WF); and (2) 5 yr, cereal–forage. Superimposed on these rotations are eight fertility treatments
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48

Soon, Y. K., and G. W. Clayton. "Effects of eight years of crop rotation and tillage on nitrogen availability and budget of a sandy loam soil." Canadian Journal of Soil Science 83, no. 5 (2003): 475–81. http://dx.doi.org/10.4141/s03-001.

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The effects of tillage and crop rotations on soil N availability and economy were evaluated over two rotation cycles to address the paucity of such information. From 1993 through 2000, soil was sampled to 120 cm in the autumn from four crop rotations : (i) continuous wheat (Triticum aestivum L.), (ii) field pea (Pisum sativum L.)-wheat-canola (Brassica rapa L.)-wheat, (iii) red clover (Trifolium pratense L.) green manure-wheat-canola-wheat/red clover, (iv) fallow-wheat-canola-wheat, and analysed for KCl-extractable N. The rotations were managed under a conventional tillage (CT) or a no-till (N
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49

Timoshinov, Roman, Elena Kushaeva, Lyudmila Marchuk, Alexander Dubkov, and Alexey Klykov. "EFFECTIVENESS OF DIFFERENT FERTILIZER SYSTEMS’ LONG-TERM APPLICATION IN THE CROP ROTATION." Bulletin of KSAU, no. 4 (December 27, 2024): 38–48. https://doi.org/10.36718/1819-4036-2023-4-38-43.

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The purpose of the work is to study the effect of various fertilizer systems in the crop rotation of a long-term agrochemical station on the yield of cultivated crops in the conditions of the Primorsky Region. This paper summarizes the results of nine rotations of a long-term stationary field experiment established in 1941 on bleached meadow-brown heavy loamy soil based on a nine-field crop rotation. The use of different fertilizer systems during nine rotations of crop rotation increased the yield of agricultural crops, in comparison with the control variant without fertilizers, on average for
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50

Johnston, Russell, Vernon Shattuck, and John Seliga. "THE EFFECTS OF CROP ROTATIONS AND NITROGEN RATES ON PROCESSING TOMATO YIELDS." HortScience 27, no. 6 (1992): 622f—622. http://dx.doi.org/10.21273/hortsci.27.6.622f.

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The influence of various crop rotations on the marketable yield of processing tomatoes (Lvcopersicon esculentum) in southwestern Ontario was investigated. The study was conducted for three years using nine and eight crop rotations at Leamington and Dresden, respectively. Four rates of nitrogen, 0, 45, 90, and 135 kg/ha were applied to each rotation. The treatments were arranged in a split-plot experimental design. Tomato yields were generally higher at both locations for all rotations compared to continuously grown tomatoes (control). The highest yields were obtained when tomatoes were grown i
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