摘要
4年试验表明 ,保护性耕作具有明显的保水增产增收效果 ,但是仅靠改进机具 ,难以解决播种质量不高的问题。通过对比不同处理的秸秆覆盖率、地温、土壤含水量、出苗率和作物产量 ,初步得出表土耕作可以减少地表秸秆覆盖量 ,改善地面状况 ,提高播种质量 ,增加地温 ,保苗增产。
Four years' experiment showed the advantage of conservation tillage in soil water conserving and crop yield increasing, but also exposed some problems like poor planting quality. Through analysis of stalk cover tate, soil temperature, soil moisture content, crop emergence and yield of different treatments, it was found that surface tillage can reduce stalk cover rate, improve ground condition and increase soil temperature and yield. Surface should be treated as a key technology for conservation tillage.
出处
《干旱地区农业研究》
CSCD
北大核心
2000年第2期13-18,共6页
Agricultural Research in the Arid Areas
基金
中国-澳大利亚合作项目 "旱农保护性 /带状耕作研究"!( A CIA R92 0 9)
关键词
旱地
保护性耕作
表土耕作
dryland
conservation tillage
surface tillage
