Crop water deficit estimation and irrigation scheduling in western Jilin province,Northeast China |
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| Institution: | 1. Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, 3195 Weishan Road, Changchun 130012, China;2. Department of Biological and Irrigation Engineering, Utah State University, Logan, UT 84322-4105, USA;1. Engineering Technology Research Center, Geographic Information Development and Application of Hebei, Institute of Geographical Sciences, Hebei Academy of Sciences, Shijiazhuang 050011, China;2. NSW Department of Primary Industries, Wagga Wagga Agricultural Institute, Wagga Wagga, New South Wales 2650, Australia;3. Climate Change Research Centre, University of New South Wales, Sydney, New South Wales 2052, Australia;4. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling 712100, China;1. The University of Queensland, Queensland Alliance for Agriculture and Food Innovation (QAAFI), 203 Tor Street, Toowoomba, QLD 4350, Australia;2. Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, 2630 Taastrup, Denmark;3. Unité Mixte de Recherche (UMR) Laboratoire d''Ecophysiologie des Plantes Sous Stress Environnementaux (LEPSE), Institut National de la Recherche Agronomique (INRA), Montpellier SupAgro, 34060 Montpellier, France;4. Department of Geological Sciences and Kellogg Biological Station, Michigan State University, East Lansing, MI 48823, USA;5. Commonwealth Scientific and Industrial Research Organisation (CSIRO) Agriculture and Food, Queensland Bioscience Precinct, 306 Carmody Road, St. Lucia, QLD 4067, Australia;6. Institute of Crop Science and Resource Conservation, Universität Bonn, 53115 Bonn, Germany;7. Department of Agri-food Production and Environmental Sciences, University of Florence, Piazzale delle Cascine 18, 50144 Firenze, Italy;8. Agricultural and Biological Engineering Department, University of Florida, Gainesville, FL 32611, USA;1. CSIRO Agriculture and Food, Australia;2. CIMMYT-India, NASC Complex, DPS Marg, New Delhi 110012, India;3. Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh;4. Climate Change, Alternate Energy and Water Resources Institute (CAEWRI), National Agricultural Research Center (NARC) NIH, Shehzad Town, Park Road, Islamabad, Pakistan;5. Bangladesh Rice Research Institute (BRRI), Gazipur, Bangladesh;6. Natural Resources Division, Pakistan Agricultural Research Council, Islamabad, Pakistan;7. ICAR Research Complex for NEH Region, Umiam, Meghalaya 793 103, India;8. Nepal Agricultural Research Council, National Grain Legumes Research Program, Rampur, Chitwan, Nepal;9. Central Research Institute for Dryland Agriculture (CRIDA), Hyderabad, India;10. Nanjing Agricultural University, Nanjing, Jiangsu 210095, China;11. Field Crops Research and Development Institute, Department of Agriculture, Mahailluppallama, Sri Lanka;12. International Rice Research Institute (IRRI), Los Baños, Philippines;13. Agriculture Research and Development Centre, Bhur, Bhutan;14. Rice Research and Development Institute, Department of Agriculture, Bathalagoda, Ibbagamuwa, Sri Lanka;15. ICAR – Indian Institute of Soil & Water Conservation, Dehradun, India;p. ICAR – Indian Institute of Farming Systems Research, Modipuram-250110, Meerut, Uttar Pradesh, India;q. Balai Pengkajian Technology Pertanian Nusa Tengarra Barat (BPTPNTB), Indonesia;r. Faculty of Agriculture, University of Peradeniya, Peradeniya, Sri Lanka;s. Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China;t. College of Resources and Environmental Sciences, China Agricultural University, Beijing, China;u. Central Soil Salinity Research Institute, Karnal, Haryana, India;v. CSIRO Land and Water, Brisbane, Australia;w. School of Agriculture and Food Sciences, University of Queensland, Brisbane, Australia;1. Department of Agricultural Chemistry and Soil Science, Bidhan Chandra Krishi Viswavidyalaya, Mohonpur 741252, India;2. Department of Agronomy, Bidhan Chandra Krishi Viswavidyalaya, Mohonpur 741252, India;1. CIRAD, AIDA (Agro-ecology and Sustainable Intensification of Annual Crops), Av. Agropolis, 34060 Montpellier, France;2. CIMMYT, SIP (Sustainable Intensification Program), P.O. Box 1041-00621, Gigiri, Nairobi, Kenya;3. CIRAD, SELMET (Mediterranean and tropical livestock systems), Av. Agropolis, 34060 Montpellier, France;4. CIMMYT, SIP (Sustainable Intensification Program), P.O. Box MP 163, Mount Pleasant, Harare, Zimbabwe;1. College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China;2. Institute of Water Saving Agriculture in Arid Areas of China, Northwest A&F University, Yangling, Shaanxi 712100, China;3. Key Laboratory of Crop Physi-ecology and Tillage Science in Northwestern loess Plateau, Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, China |
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| Abstract: | Jilin province is one of the main dryland grain production areas in China. Recently, limited supplemental irrigation, using groundwater in the semi-arid western area of the province, has developed rapidly to improve the low grain productivity caused by rainfall variability. Research was conducted to estimate the actual crop water requirements and identify the timing and magnitude of water deficits of the main crops such as corn (Zea mays L.), soybean (Glycine max L.) and sorghum (Sorghum bicolor L.). Using the guidelines for computing crop water requirements in FAO Irrigation and Drainage paper 56 and historical rainfall distributions, the crop water requirements, ETc and the crop water deficits of corn, soybean and sorghum were calculated. Based on the water deficit analysis, a recommended average supplemental irrigation schedule was developed. Crop production was compared to full irrigation and to a rainfed control in a field experiment.On average, compared to the rainfed control, the full irrigation and the average supplemental irrigation treatments of corn, increased yields 49.0 and 43.9%, respectively; soybean yields of those treatments increased by 41.0 and 34.7%, and sorghum yields of those treatments increased by 55.5 and 46.3%. A supplemental irrigation schedule can be used in the semi-arid western Jilin province to improve crop yields. |
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