| The popularization and application of comprehensive techniques for reducing drought risk in agriculture in Huang-Huai Region |
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| DOI：10.7606/j.issn.1000-7601.2009.02.02 |
| Key Words: Huang-Huai Region agriculture drought risk comprehensive techniques |
| Author Name | Affiliation | | WANG Youhe | Nanjing University of Information Science ＆ Technology,Nanjing 210044,China；Henan Institute of Meteorology,Zhengzhou 450003,China；Henan Provincial Meteorological Observatory,Zhengzhou 450003,China | | ZHU Zixi | Henan Institute of Meteorology,Zhengzhou 450003,China | | LIU Ronghua | Henan Institute of Meteorology,Zhengzhou 450003,China | | FANG Wensong | Henan Institute of Meteorology,Zhengzhou 450003,China | | SHI Likui | Nanjing University of Information Science ＆ Technology,Nanjing 210044,China；Henan Institute of Meteorology,Zhengzhou 450003,China | | GU Xiujie | Henan Provincial Meteorological Observatory,Zhengzhou 450003,China |
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| Abstract: |
| Through experiments, it was found that enough pre-sowing water, deep-ploughing, treating seeds with chemicals, returning straw into soil, straw mulching, limited irrigation, spraying drought-preventing and dry-hot wind agents are effective measures to increase water use efficiency (WUE) and reduce drought risk.Practicing comprehensive measures is favorable for soil water accumulation in early growing period and promoting transpiration & dry matter accumulation in later growing period.Thus soil water consumption turns from physical process into physiological process and from inefficient consumption to efficient consumption.Applying these measures in Huang-Huai Region, irrigations can be reduced 1～2 times and 1 time in winter wheat and summer corn fields, respectively.Wheat and corn yield of eight popularization spots in two years were increased by 1.71×108 kg and 2.46×108 kg, respectively.Besides it, water resources consumption was retrenched by 1.08×109 m3. It realized tremendous economic and social benefits. |
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