干旱地区农业研究Issue(6)：103-107,5.
玉米秸秆深层还田技术对土壤肥力和玉米产量的影响研究
Effects of deep maize straw returning on soil fertility and maize yields
摘要
Abstract
A field trial was carried out to study the effects of deep maize straw returning on 0~40 cm layer soil fer-tility and maize yields .Results show that deep maize straw returning can not only improve the physic-chemical properties of soil but also improve maize yield .After deep maize straw returning for three years,organic matter content in soils of 0~20 cm has increased by 1 .8%~8 .38%,The content of available nitrogen,phosphorus,and potassium increased by 5 .47%~14.66%,1 .33%~1 .42%,and 1 .77%~5 .31%,respectively.By contrast,soil bulk density decreased by 0 .75%~4 .5 1%.In addition,these parameters showed similar trand of the soils of 20~40 cm .There was a consid-erable increase in the maize yields after deep maize straw returning,increased by 4 .7%~8 .5%.关键词
玉米/秸秆还田/土壤肥力/产量Key words
maize/straw returning/soil fertility/yield分类
农业科技引用本文复制引用
王喜艳,张亚文,冯燕,周兴本,刘洋,周剑,黄毅..玉米秸秆深层还田技术对土壤肥力和玉米产量的影响研究[J].干旱地区农业研究,2013,(6):103-107,5.基金项目
公益性行业（农业）科研专项经费项目“东北旱地玉米土、肥、水联合跨季节调控技术体系研究” （）
