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Academic literature on the topic 'Wheat – Double cropping'

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Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "Wheat – Double cropping"

Shapiro, B. I., B. Wade Brorsen, and D. Howard Doster. "Adoption of Double-Cropping Soybeans and Wheat." Journal of Agricultural and Applied Economics 24, no. 2 (December 1992): 33–40. http://dx.doi.org/10.1017/s0081305200018355.

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AbstractDouble-cropping of soybeans and wheat is often promoted by extension personnel. This paper seeks to explain how the decision to adopt double-cropping is made, using a Tobit regression model. Tobit makes use of more of the information in the data set than do logit or probit and explains not only the decision to double-crop but also the rate of adoption. The paper considers factors such as profit and risk perceptions and risk which have not been included in the past models used to explain adoption of technology. The results show that risk perception is important. Contrary to the findings of some other adoption studies, this decision in not influenced by human capital factors. The farmers who double-crop are more highly leveraged and appear to do so both to achieve higher income and as part of a risk diversification strategy. This is consistent with the importance of the location factor, measured as the average number of growing degree days at the farm's location. Growing degree days is a proxy for the actual distribution of returns from double-cropping and is the main factor explaining this decision. Extensive adoption of double-cropping in cooler regions of the Midwest must await technological advances that can increase the profitability of double-cropping by reducing the growing season for wheat and/or beans.

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JACQUES, S., R. K. BACON, and L. D. PARSCH. "COMPARISON OF SINGLE CROPPING, RELAY CROPPING AND DOUBLE CROPPING OF SOYABEANS WITH WHEAT USING CULTIVAR BLENDS." Experimental Agriculture 33, no. 4 (October 1997): 477–86. http://dx.doi.org/10.1017/s0014479797004043.

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Comparisons of single cropping, double cropping and relay cropping of soyabeans (Glycine max) with wheat (Triticum aestivum) were made at two sites in Arkansas over a two-year period. The comparisons were made using both soyabean blends and their component cultivars. In relay cropping the yields of pure lines of soyabeans were reduced by 17% compared with single-cropped soyabeans, but the yield of wheat in relay cropping was 15% less than in double cropping. Double cropping reduced the branch number, plant height, node number and leaf area of soyabeans compared with single cropping, but relay cropping reduced only node number and leaf area. Both double cropping and relay cropping gave greater land equivalent ratio (LER) values than single cropping, and double cropping gave greater LER values than relay cropping. Net returns were lowest with single cropping and greatest with double cropping. Soyabean blends gave yields similar to the mean of the component genotypes in all three cropping systems, and the net returns of blends were similar to those of the means of component genotypes.

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L. H. Chen and R. W. McClendon. "Soybean and Wheat Double Cropping Simulation Model." Transactions of the ASAE 28, no. 1 (1985): 065–69. http://dx.doi.org/10.13031/2013.32203.

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Jiao, P., D. Xu, S. Wang, Y. Wang, K. Liu, and G. Tang. "Nitrogen loss by surface runoff from different cropping systems." Soil Research 50, no. 1 (2012): 58. http://dx.doi.org/10.1071/sr11152.

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Reducing nitrogen (N) loss from agricultural soils as surface runoff is essential to prevent surface water contamination. The objective of 3-year study, 2007–09, was to evaluate surface runoff and N loss from different cropping systems. There were four treatments, including one single-crop cropping system with winter wheat (Triticum aestivum L.) followed by summer fallow (wheat/fallow), and three double-cropping systems: winter wheat/corn (Zea mays L.), wheat/cotton (Gossypium hirsutum L.), and wheat/soybean (Glycine max L. Merrill). The wheat/fallow received no fertiliser in the summer fallow period. The four cropping systems were randomly assigned to 12 plots of 5 m by 2 m on a silty clay soil. Lower runoff was found in the three double-cropping systems than the wheat/fallow, with the lowest runoff from the wheat/soybean. The three double-cropping systems also substantially reduced losses of ammonium-N (NH4+-N), nitrate-N (NO3–-N), dissolved N (DN), and total N (TN) compared with the wheat/fallow. Among the three double-cropping systems, the highest losses of NO3–-N, DN, and TN were from the wheat/cotton, and the lowest losses were from the wheat/soybean. However, the wheat/soybean increased NO3–-N and DN concentrations compared with wheat/fallow. The losses in peak events accounted for >64% for NH4+-N, 58% for NO3–-N, and 41% for DN of the total losses occurring during the 3-year experimental period, suggesting that peak N-loss events should be focussed on for the control of N loss as surface runoff from agricultural fields.

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Karimov, Akmal Kh, Munir A. Hanjra, Jiří Šimůnek, and Botir Abdurakhmannov. "Can a change in cropping patterns produce water savings and social gains: A case study from the Fergana Valley, Central Asia." Journal of Hydrology and Hydromechanics 66, no. 2 (June 1, 2018): 189–201. http://dx.doi.org/10.1515/johh-2017-0054.

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AbstractThe study examines possible water savings by replacing alfalfa with winter wheat in the Fergana Valley, located upstream of the Syrdarya River in Central Asia. Agricultural reforms since the 1990s have promoted this change in cropping patterns in the Central Asian states to enhance food security and social benefits. The water use of alfalfa, winter wheat/fallow, and winter wheat/green gram (double cropping) systems is compared for high-deficit, low-deficit, and full irrigation scenarios using hydrological modeling with the HYDRUS-1D software package. Modeling results indicate that replacing alfalfa with winter wheat in the Fergana Valley released significant water resources, mainly by reducing productive crop transpiration when abandoning alfalfa in favor of alternative cropping systems. However, the winter wheat/fallow cropping system caused high evaporation losses from fallow land after harvesting of winter wheat. Double cropping (i.e., the cultivation of green gram as a short duration summer crop after winter wheat harvesting) reduced evaporation losses, enhanced crop output and hence food security, while generating water savings that make more water available for other productive uses. Beyond water savings, this paper also discusses the economic and social gains that double cropping produces for the public within a broader developmental context.

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Wang, Guoping, Yabing Li, Yingchun Han, Zhanbiao Wang, Beifang Yang, Xiaofei Li, and Lu Feng. "Resource use efficiency in a cotton-wheat double-cropping system in the Yellow River Valley of China." Experimental Agriculture 56, no. 3 (May 5, 2020): 422–39. http://dx.doi.org/10.1017/s001447972000006x.

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AbstractThe cotton-wheat double-cropping system is widely used in the Yellow River Valley of China, but whether and how different planting patterns within cotton-wheat double-cropping systems impact heat and light use efficiency have not been well documented. A field experiment investigated the effects of the cropping system on crop productivity and the capture and use efficiency of heat and light in two fields differing in soil fertility. Three planting patterns, namely cotton intercropped with wheat (CIW), cotton directly seeded after wheat (CDW), and cotton transplanted after wheat (CTW), as well as one cotton monoculture (CM) system were used. Cotton-wheat double cropping significantly increased crop productivity and land equivalent ratios relative to the CM system in both fields. As a result of increased growing degree days (GDD), intercepted photosynthetically active radiation (IPAR), and photothermal product (PTP), the capture of light and heat in the double-cropping systems was compared with that in the CM system in both fields. With improved resource capture, the double-cropping systems exhibited a higher light and heat use efficiency according to thermal product efficiency, solar energy use efficiency (Eu), radiation use efficiency (RUE), and PTP use efficiency (PTPU). The cotton lint yield and biomass were not significantly correlated with RUE across cropping patterns, indicating that RUE does not limit cotton production. Among the double-cropping treatments, CDW had the lowest GDD, IPAR, and PTP values but the highest heat and light resource use efficiency and highest overall resource use efficiency. This good performance was even more obvious in the high-fertility field. Therefore, we encourage the expanded use of CDW in the Yellow River Valley, especially in fields with high fertility, given the high productivity and resource use efficiency of this system. Moreover, the use of agronomic practices involving a reasonably close planting density, optimized irrigation and nutrient supply, and the application of new short-season varieties of cotton or wheat can potentially enhance CDW crop yields and productivity.

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Dong, Shi Wei, Dan Feng Sun, and Hong Li. "Crop Decision Tree Classification Extraction Based on MODIS NDVI in Beijing." Advanced Materials Research 955-959 (June 2014): 787–90. http://dx.doi.org/10.4028/www.scientific.net/amr.955-959.787.

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Time-series satellite images can reflect the seasonal variation from vegetation on land surface. Single cropping and double cropping were extracted by decision tree classification based on MODIS NDVI of Beijing in 2007, and spatial distribution of dominant crops in Beijing was obtained. The dominant crops of single cropping were maize, wheat and vegetable, and the overwhelming majority of crops with double cropping were wheat-maize. The results showed that this method could effectively determine the dominated crops in Beijing.

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C. E. Hood, A. Khalilian, J. H. Palmer, T. H. Garner, T. R. Garrett, and J. C. Hayes. "Double-Cropping Interseeding System for Wheat, Soybeans, and Cotton." Applied Engineering in Agriculture 7, no. 5 (1991): 530–36. http://dx.doi.org/10.13031/2013.26263.

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Russell, JS, and PN Jones. "Continuous, alternate and double crop systems on a Vertisol in subtropical Australia." Australian Journal of Experimental Agriculture 36, no. 7 (1996): 823. http://dx.doi.org/10.1071/ea9960823.

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Three cropping systems using 5 crop species were compared over a 10-year period on a cracking clay soil (Vertisol) in the sub-humid subtropics of eastern Australia. The 3 cropping systems were continuous (the same crop every year), alternate (the same crop every second year) and double (a winter and summer crop in the one year). There were 2 cereal crops (sorghum and wheat) and 3 grain legumes (chickpea, green gram and black gram). The effect of cropping system was measured in terms of grain and protein yields and changes in soil organic carbon (surface 0-10 cm) and nitrogen concentrations. Summer and winter rainfall was below average in 8 and 5 years out of 10, respectively. Grain yield of cereal monocultures was about twice that of legume monocultures. The potential for double cropping, despite the generally below-average rainfall, was clearly shown with the highest grain and protein yields coming from the combination of green gram (summer) and wheat (winter). Averaged over 10 years, wheat yield (1460 kg/ha. year) was identical in the continuous and alternate cropping systems. Sorghum yields were marginally higher with alternate cropping (1340 kg/ha. year) than continuous cropping (1050 kg/ha. year). With double cropping, average wheat yields were 1081 and 698 kg/ha when combined with green and black gram, respectively. Black gram gave half the average yield of either green gram or chickpea (about 300 v. 600 kg/ha). This was attributed to the indeterminate nature of the crop in an environment with variable rainfall and to the detrimental effect of above-average rainfall during harvest time. Soil nitrogen and carbon levels, with initial values of 0.22 and 2.96%, were reduced at the end of 10 years by 16 and 27% respectively. Their rate of decline did not differ between cropping systems.

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Wang, Lin, Yingxing Zhao, Mahdi Al-Kaisi, Jia Yang, Yuanquan Chen, and Peng Sui. "Effects of Seven Diversified Crop Rotations on Selected Soil Health Indicators and Wheat Productivity." Agronomy 10, no. 2 (February 5, 2020): 235. http://dx.doi.org/10.3390/agronomy10020235.

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Diversified cropping systems can enhance soil condition and increase system productivity worldwide. To reduce the negative effects that accompany the continuous winter wheat–summer maize (WM) double-cropping in the North China Plain (NCP), diversified crop rotation (DCR) needs to be considered. The objective of this study is to evaluate the effect of DCR on soil health and wheat productivity as compared to a continuous WM double-cropping. A field experiment (37°41′ N, 116°37′ E) was established in the NCP including a traditional WM double-cropping as a baseline. During 2016/2017–2017/2018, the control is winter wheat–summer maize→winter wheat–summer maize (WM→WM) and seven DCRs as follow: fallow→winter wheat–summer maize (F→WM); spring maize→winter wheat–summer maize (Ms→WM); winter wheat→winter wheat–summer maize (W→WM); sweet potato→winter wheat–summer maize (Psw→WM); spring peanut→winter wheat–summer maize (Pns→WM); winter wheat–summer peanut→winter wheat–summer maize (WPn→WM) and potato–silage maize→winter wheat–summer maize (PMl→WM). Our results indicated that DCRs significantly changed certain soil health indicators in 2016/2017 compared with the control, where F→WM rotation significantly decreased soil pH by 2.7%. The DCRs, especial Psw→WM and Pns→WM rotations showed a potential positive effect on soil health indicators at the end of the second year (2017/2018) compared with the control, where sweet potato increased soil organic carbon (SOC), total nitrogen (TN), available phosphorus (AP), urease activity (UA) and alkaline phosphatase activity (APA) in 2017/2018 by 5.1%, 5.3%, 13.8%, 9.4%, and 13.5%, respectively. With the spring peanut, TN, AP, and soil APA were increased by 2.1%, 13.2%, and 7.7%, respectively. Although fertilizer and irrigation input of DCRs were lower than the control, no significant decrease was observed on actual wheat yield as compared to the control (7.79 Mg/ha). The finding of this study highlights the value of DCRs, especially, Psw→WM and Pns→WM rotations over WM double-cropping in the NCP.

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Dissertations / Theses on the topic "Wheat – Double cropping"

Stewart, Anna Elizabeth. "Full-Season and Double-Crop Soybean Response to Potassium Fertilizer." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/56473.

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Demand for potassium (K) increases with increasing soybean yield. Little research has been conducted on soybean response to K on coastal plain and piedmont soils of Virginia, especially in double-crop systems. Nineteen full-season and 14 double-crop soybean experiments were conducted in 2013 and 2014 in Virginia and northeastern North Carolina to determine full-season and double-crop soybean (with wheat straw remaining or removed) response to soil test K and K fertilizer application rates. Field moist, air dried, and oven dry soil test K extraction techniques were also compared to predict responsiveness of sites to K applications. Potassium fertilizer increased yield in five of 19 full-season experiments and one of 14 double-crop experiments. Full-season soybean yield plateaued at 88% relative yield and soil test K value of 38.8 mg K kg-1. Full-season plant K critical concentrations were 18.2 g K kg-1 for V5 and 24.6 g K kg-1 for R2. Although critical concentrations could not be determined for double-crop soybean, V5 and R2 concentrations ranged from 17.6 to 35.6 g K kg-1 or 13.2 to 28.1 K kg-1, respectively, most of which were within or above accepted sufficiency levels. Eight of 13 sites resulted in greater soil K concentrations when alternative soil drying methods were compared to air-dry methods. However, differences were not consistent and no single method was superior for these soils. More data is needed for double-crop soybean systems due to lack of response and lack of low soil test K sites in these experiments.
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Thompson, R. K., and J. L. Bobula. "Barley, Bread Wheat, and Durum Wheat Evaluated for Double Cropping with Cotton at the University of Arizona Maricopa Agricultural Center in 1985." College of Agriculture, University of Arizona (Tucson, AZ), 1985. http://hdl.handle.net/10150/200470.

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Thompson, Rex, and Jamie Bobula. "Bread Wheat, Barley and Durum Wheat Evaluated for Double Cropping with Cotton at the University of Arizona Maricopa Agricultural Center in 1986." College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/200547.

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Hartmann, Tobias Edward [Verfasser], and Torsten [Akademischer Betreuer] Müller. "Evaluation and improvement of N fertilization strategies in the wheat/maize double-cropping system of the North China Plain / Tobias Edward Hartmann. Betreuer: Torsten Müller." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2015. http://d-nb.info/1070590223/34.

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Böning-Zilkens, Marion I. [Verfasser]. "Comparative appraisal of different agronomic strategies in a winter wheat-summer maize double cropping system in the North China Plain with regard to their contribution to sustainability / Marion I Böning-Zilkens." Aachen : Shaker, 2004. http://d-nb.info/1170539831/34.

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Michalczyk, Anna [Verfasser], Kurt Christian [Akademischer Betreuer] Kersebaum, Kurt Christian [Gutachter] Kersebaum, Rolf [Gutachter] Nieder, and Jürgen [Gutachter] Böttcher. "Modelling of nitrogen cycles in intensive winter wheat–summer maize double cropping systems in the North China Plain : site specific optimisation of nitrogen fertilisation with regard to nitrogen losses, water protection, productivity and regionalisation / Anna Michalczyk ; Gutachter: Kurt Christian Kersebaum, Rolf Nieder, Jürgen Böttcher ; Betreuer: Kurt Christian Kersebaum." Potsdam : Universität Potsdam, 2019. http://d-nb.info/1218405619/34.

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Duncan, Stewart R. "Relay intercropping soybeans into wheat in non-traditional double-cropping areas of Kansas." 1988. http://hdl.handle.net/2097/22234.

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Eggers, Dexter. "Factors affecting selection of double-crop soybean genotypes." 1985. http://hdl.handle.net/2097/27434.

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Leetch, Michael Scott. "Evaluation of chlorsulfuron for weed control in winter wheat (Triticum aestivum L.) and its effect on subsequent recropping with soybeans (Glycine max (L.) Merr.) or grain sorghum (Sorghum bicolor (L.) Moench)." 1985. http://hdl.handle.net/2097/27481.

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Books on the topic "Wheat – Double cropping"

Marra, Michele C. Double-cropping wheat and soybeans in the southeast: Input use and patterns of adoption. Washington, D.C: U.S. Dept. of Agriculture, Economic Research Service, 1986.

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Marra, Michele C. Double-cropping wheat and soybeans in the southeast: Input use and patterns of adoption. Washington, D.C: U.S. Dept. of Agriculture, Economic Research Service, 1986.

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Marra, Michele C. Double-cropping wheat and soybeans in the southeast: Input use and patterns of adoption. Washington, D.C: U.S. Dept. of Agriculture, Economic Research Service, 1986.

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Marra, Michele C. Double-cropping wheat and soybeans in the southeast: Input use and patterns of adoption. Washington, D.C: U.S. Dept. of Agriculture, Economic Research Service, 1986.

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Marra, Michele C. Double-cropping wheat and soybeans in the southeast: Input use and patterns of adoption. Washington, D.C: U.S. Dept. of Agriculture, Economic Research Service, 1986.

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Marra, Michele C. Double-cropping wheat and soybeans in the southeast: Input use and patterns of adoption. Washington, D.C: U.S. Dept. of Agriculture, Economic Research Service, 1986.

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Marra, Michele C. Double-cropping wheat and soybeans in the southeast: Input use and patterns of adoption. Washington, D.C: U.S. Dept. of Agriculture, Economic Research Service, 1986.

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Wesley, R. A. Effects of crop rotation and irrigation on soybean and wheat doublecropping on clay soil: an economic analysis. 1994.

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Book chapters on the topic "Wheat – Double cropping"

Shengfeng, Wang, Xu Jianxin, Yang Shuqin, and Jia Ping. "Study on Irrigation Regime of Double Cropping of Winter Wheat with Summer Maize." In Computer and Computing Technologies in Agriculture IV, 428–39. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-18354-6_51.

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Parsch, Lucas D., Mark J. Cochran, Kalven L. Trice, and Don H. Scott. "Biophysical Simulation of Wheat and Soybean to Assess the Impact of Timeliness on Double-Cropping Economics." In Agronomy Monographs, 511–34. Madison, WI, USA: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr31.c22.

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Das, Sripriya, Manoj Kumar Singh, Sneha Kumari, and Manimala Mahato. "Recent Advances in Crop Establishment Methods in Rice-Wheat Cropping System-a Review." In Cereal Grains [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.98743.

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Traditional practices of growing rice and wheat in Asian countries involve a huge cost in establishment methods adopted by farmers which not only limit the yield and return but also degrade soil and require more water. Adaptation of improved crop establishment methods suitable under adverse climatic conditions is of utmost importance for scientific utilization of natural resources and to maintain the sustainability of rice- wheat cropping system Therefore, an attempt has been made in this chapter to review precision rice establishment methodology viz., direct seeding, non-puddle/unpuddled transplanting, bed transplanting, strip tilled and single pass shallow tilled rice, double transplanting and system of rice intensification (SRI) and wheat establishment methods viz., zero tilled, strip tilled and bed planted wheat. These are recent improved crop establishment techniques that can be used under specific agro-ecological conditions for enhancing yield and resource conservation in Indo-gangetic plains of Eastern India.

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Evans, L. T. "Greater Crop Production Whence and Whither?" In Feeding a World Population of More Than Eight Billion People. Oxford University Press, 1998. http://dx.doi.org/10.1093/oso/9780195113129.003.0013.

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Crop physiology has been called “the retrospective science” by one plant breeder because we physiologists elucidate what the breeders have already achieved. Indeed, such explanations occupy the first part of this chapter, the whence of greater crop production. We shall also peer ahead, the whither in my title. But physiologists have learned that past increases in crop productivity have often come from unexpected and initially unrecognized directions, in many cases driven by developments in agronomy, mechanization, and demand. The integrating power of empirical selection for yield potential has, so far, proved more effective than ideological selection for specific physiological characteristics, presumably because yield is the integrated end result of a great variety of processes that must act in a balanced and coordinated way. Crop production can be increased in several ways, such as by extending the arable area, by increasing yield per hectare per crop or the number of crops per hectare per year (called intensification), by displacement of lower by higher yielding crops, and by reducing postharvest losses. Until the 1960s the major contribution for the world as a whole came from increases in the area of arable land and in the proportion of it under crop. Since then, however, the limited increases in arable area, in South America and Africa mostly, have largely been matched —though not in land quality —by losses to urbanization, transport, and degradation. The proportion of rainfed arable land under crop continues to increase slowly, currently being about three quarters for the developing countries as a whole. The intensification of arable land use is most important in warmer and wetter climates, particularly under irrigation. Double cropping of rice has been prominent in China since Sung times. Cropping intensity in the Punjab now approaches 200%, and FAO projects that 13% of the increase in crop production in developing countries by A.D. 2010 will come from intensification, compared with 21% from extension of the arable (Alexandratos, 1995). Further intensification will depend heavily on extension of the irrigated area, but much can also be achieved by the breeding of earlier maturing varieties coupled with improvements in fertilizer use and minimum tillage procedures.

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Conference papers on the topic "Wheat – Double cropping"

Fawcett, Jim, and Tom Miller. "Double Cropping Field Peas After Winter Wheat for Swine Rations." In Proceedings of the 13th Annual Integrated Crop Management Conference. Iowa State University, Digital Press, 2004. http://dx.doi.org/10.31274/icm-180809-777.

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Gao Li, Huanwen Hongwen, and Yao Zonglu. "Research & Development On Wheat No-till Seeders for Double Cropping Area In Center China." In 2007 Minneapolis, Minnesota, June 17-20, 2007. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2007. http://dx.doi.org/10.13031/2013.23087.

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Wu, Dafu, Hongwei Chen, Yanbing Wu, and S. J. Chapman. "Nitrogen Fertilizer Application under Double Cropping Systems of Wheat-Maize Impacting on the Nitrate Contents of Ground Water in North China." In 2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE). IEEE, 2010. http://dx.doi.org/10.1109/icbbe.2010.5516362.

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