河南农业科学2012，Vol.41Issue(4)：20-24,5.
深松覆盖对旱地冬小麦产量和水分利用率的影响
Effects on Winter Wheat Yield and Water Using Efficiency on Dryland under Long-term Subsoiling and Mulch Tillage
摘要
Abstract
Winter wheat yield and water using efficiency under subsoiling and mulch tillage treatment were studied in Mengjin experiment station form 1999 to 2009. The results showed as follows: (1) Drought was increasing, and the average annual rainfall was 546. 7mm, decreased by 7. 95% compared with the average value in usual years, (2) The winter wheat yield under subsoiling and mulch tillage treatment showed increase in 10 years,increasing by 8. 67% averagely,with range of 4. 9%-20. 87%. It increased more significantly in dry years. (3) The rainfall storage could be significantly improved, from 22. 9%-64. 8% of traditional farming to 37. 5%-75. 0% of subsoiling and mulch tillage,with 22. 13% increased averagely. (4) Subsoiling and mulch tillage could effectively improve soil water use efficiency, especially in drought years,and the average precipitation use efficiency increased by 4. 73% in 10 years.关键词
深松覆盖/旱地冬小麦/产量/降水贮蓄率/水分利用效率Key words
subsoiling and mulch tillage/ winter wheat on dryland/ yield/ rainfall storage/ water use efficiency分类
农业科技引用本文复制引用
姚宇卿,于新峰,吕军杰,张洁,李俊红,丁志强,吴剑锋,杨妮娜,蔡典雄,吴会军..深松覆盖对旱地冬小麦产量和水分利用率的影响[J].河南农业科学,2012,41(4):20-24,5.基金项目
中国与比利时国际合作项目(13v33498) （13v33498）
国家粮食丰产科技工程项目(2004BA520-6) （2004BA520-6）
国家“十一五”科技支撑计划项目(2007BAD88B02) （2007BAD88B02）
