有关专家在江苏常熟市万亩试验田推广和示范的稻麦秸秆直接还田技术取得明显进展,实现了秸秆还田由半量到全量的新突破。此项技术可增加土壤有机质,消除秸秆因废弃和焚烧带来的环境公害,并可使稻麦增产5％～8％。 过去,稻麦秸秆直接还田的最大限量只能控制在半量以下,即每667平方米150～200千克。其主要原因是,还田秸秆分布不均和水分调节不到 The relevant experts made remarkable progress in popularizing and demonstrating the technology of directly returning rice and straw to the area of ​​10,000 mu in Changshu City, Jiangsu Province, and achieved a new breakthrough in the field of straw returning from half amount to full amount. This technology can increase soil organic matter, eliminate the environmental pollution caused by discard and incineration of straw, and increase the yield of rice and wheat by 5% -8%. In the past, the maximum limit for the direct return of rice straw to wheat straw could only be controlled below half the amount, ie 150 to 200 kg per 667 m2. The main reason is that the uneven distribution of straw and water to adjust less than