干旱地区农业研究2011,Vol.29Issue(6):125-129,5.
绿肥与化肥配施对小麦产量和土壤肥力的影响
Effect of combined application of green manure and chemical fertilizer on wheat yield and soil fertility
摘要
Abstract
An experiment was carried out in Cansu Hexi oasis irrigation area to investigate, under the condition of total amount of N application remaining unchanged, the effect of green manure replacing chemical fertilizer with the same content of N on wheat yield and chief characteristics, soil fertility and soil microbial quantity. The results showed that, in the first year, the wheat yield decreased with the increase of green manure, but the content of soil available N, P, K and organic matter increased after green manure harvest; In the second year, the increase of green manure increased wheat yield, and 70% green manure N + 30% chemical fertilizer N achieved the highest yield of 8 562 kg/hm2, 24.7% more than that by FFP. Green manure replacing N fertilizer by 30 % ~ 45 % improved soil fertility and wheat yield, and had good economic and ecological benefits.关键词
绿肥/复种/土壤肥力/小麦产量/河西走廊Key words
green manure/ multiple cropping/ soil fertility/ wheat yield/ Hexi oasis分类
农业科技引用本文复制引用
张久东,包兴国,胡志桥,王婷,曹卫东,车宗贤,杨文玉,李全福,王健..绿肥与化肥配施对小麦产量和土壤肥力的影响[J].干旱地区农业研究,2011,29(6):125-129,5.基金项目
公益性行业(农业)科研专项经费项目"绿肥作物生产与利用技术集成研究及示范"(201103005-04) (农业)