稻草直接还田是就地造肥,就地用肥,增辟有机肥源,提高土壤肥力,增加农业后劲,夺取粮油高产、稳产的一项有效措施。在当前有机肥源和化学钾肥紧缺,以及氮肥不断增多的情况下,更加显示出稻草还田的重要性。据衢州市统计,1986年早稻草还田面积86.5万亩,1987年扩大到100.15万亩,占当年晚稻面积的86.1％,之后,每年保持 Straw directly into the field is an in-situ fertilizer, in-place fertilizer, increase access to organic fertilizer sources, improve soil fertility, increase agricultural stamina, to seize high yield and stable production of grain and oil is an effective measure. The current shortage of organic fertilizers and chemical potash and the growing use of nitrogen fertilizers have further shown the importance of straw in the field. According to statistics of Quzhou City, the area of ​​early straw returned to farmland was 865,000 mu in 1986, expanding to 100,1500 mu in 1987, accounting for 86.1% of the area of ​​late rice in that year, and then maintained annually