秸秆残茬覆盖在北方寒地的应用分析

秸秆覆盖是保护性耕作一项重要的内容,能改善土壤物理性质,具有蓄水保墒、调节地温、减缓土壤水分和温度波动、降低田间杂草密度等作用,对农田防护也有重要意义。为此,分析了秸秆覆盖在北方寒地应用情况,找出其对防止土壤风蚀、调节地温、保持土壤水分的变化规律,从而为北方寒地保护性耕作的应用与推广提供一定的依据。

Application and Analysis of Straw Mulching at North Cold Soil

Straw mulching is a important content about conservation tillage,it could improve soil physical property,have the functions in water storage,water conservation,soil temperature adjustment,soil water and temperature fluctuation abatement,soil weed density decrease. But application return is early moment. This paper analyses application of straw mulching at north cold soil,find out rule about prevent wind erosion of wind,ground temperature of adjust ,keep water of soil. This paper provide definite gist of applications and spread about conservation cillage for north cold soil.