摘要
综合分析已有秸秆覆盖试验研究的成果表明，秸秆覆盖能改善土壤物理性质，增加氮、磷，特别是有机质和速效钾含量，具有蓄水保墒、调节地温和减缓土壤水分、温度波动，降低田间杂草密度，调节土壤ｐＨ值，提高土壤生物活性的作用，对农田防护也有重要意义。由于农田覆盖秸秆的综合生态效应，使作物产量得以显著提高。
Results from the research showed that straw mulching could improve soil physical property, increase the contents of N and P,especially organic matters and available K, have the functions in water storage, water conservation, soil temperature adjustment, soil water and temperature fluctuation abatement, soil weed density decrease, soil pH regulation to neutral character, and soil biological action and the activity of soil microbe. All of those could result in remarkable increases of crop yield.
出处
《干旱地区农业研究》
CSCD
北大核心
1998年第1期45-50,共6页
Agricultural Research in the Arid Areas
关键词
秸秆覆盖
农田效应
旱地农业
straw mulching, field effect, literature summary
