论文部分内容阅读
前言秸秆还田是提高土壤有机碳含量、培肥地力、循环利用养分的有效途径。使用旋耕埋草机可实现机械化秸秆深施 ,不仅省工、增效、节本 ,而且作业质量符合农艺要求 ,旋耕深施稳定在 1 5.5~ 1 6.5cm土层 ,稳定系数达 97.4%,变异系数为 2 .6%,碎土系数达 91 .6%,秸秆还田覆盖率
Preface Straw is an effective way to increase soil organic carbon, fertilize fertility and recycle nutrients. The use of rotary tillage machine can realize the deep application of mechanized straw, not only saving labor, improving efficiency and saving cost, but also meeting the agronomic requirements. The rotary tillage stability is stable in 1 5.5-1 6.5cm soil layer with the stability coefficient of 97.4% , The coefficient of variation was 2.6%, the coefficient of soil crushing reached 91.6%, the coverage of straw returning