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主要类型旱农地区农田水分状况及其调控技术研究
Authors
史竹叶
张效忠
+4 more
徐建荣
李玉山
钟良平
韩士峰
Publication date
1 January 1992
Publisher
Abstract
提出农用地水分生产潜力试验值和八种粮食作物潜在水分利用效率,为1.013kg/mu·mm;提出农田水分动态变化规律和主要作物需水规律,冬麦需水满足率仅为34.2%,春谷为100.2%,春麦63.4%,马铃薯为81.7%,胡麻为79.2%,春玉米为65%,夏玉米为75.6%,春红薯为69.7%,提出保护性耕作体系及免耕保墒机具,提出冬小麦、春玉米、春小麦的栽培技术。在此基础上,提出地面覆盖蓄水保墒,选用优良品种,合理施肥、使用抗旱剂等高耕作种植,合理轮作调水等6项技术。1991~1994年增值157.4万元,应用本期研究成果,可促进到本世界末,粮食自给率可由75%上升到94%,基本可解决我国北方旱区粮食自给问题
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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Last time updated on 21/09/2018