摘要
以土壤水流动系统理论为指导 ,进行了缩行密植、沟播、秸秆覆盖、不同灌水定额等多种措施的综合试验研究。研究表明不同灌水定额 (375 ,5 2 5 m3/ hm2 )对产量的影响较小 ,这主要与该地的土壤结构有关 ;沟播处理、缩行密植等优化土壤水流动系统技术 ,均能较大程度地提高作物的产量和水分生产率 ;而秸秆覆盖处理由于受气候因素的影响 ,没有达到预期的效果 。
Many general measures such as row spacing reduced and close planting,furrow growing,straw mulch and different irrigation quota treatment are synthetically tested on the basis of soil water flow system. The experimental results indicate that irrigation quota has the less influence on the yield.Such measures as row spacing reduced and close planting and furrow growing are propitious to optimize soil water flow system and they can greatly increase crop's yield and water use efficiency. But straw mulch does not achieve the due effect because of the weather factor. It should be further studied in the future.
出处
《水土保持研究》
CSCD
2001年第1期89-92,141,共5页
Research of Soil and Water Conservation
基金
国家地质调查项目--河北平原土壤利用技术研究资助
关键词
土壤水流动系统
缩行密植
沟播
秸秆覆盖
河北
小麦田
soil water flow system
row spacing reduced and close planting
furrow growing
straw mulch
