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１９９４ ～１９９８ 年在三种不同土壤上的秸秆还田试验结果表明，秸秆还田对土壤微生态环境的作用在于：（１） 改善土壤物理性状，如有效孔隙度增加５８ ％ ，容重降低１０ ％ ，田间持水量提高７２ ％ ；（２） 改善土壤营养状况，如有机质年均提高０２２ ～０３２ｇ／ｋｇ 。其最终结果是提高了作物产量，试验的三年六季作物，小麦增产１８１ ％ ，水稻增产１０９ ％ 。
The results of straw returning experiments on three different soils from 1994 to 1998 showed that the effect of returning straw to soil on the micro-ecological environment was as follows: (1) The physical properties of soil were improved. For example, the effective porosity increased by 5.8% and the bulk density decreased 10%, field water capacity increased by 7 2%; (2) to improve soil nutrient status, such as organic matter annual increase of 0 22 ~ 0 32g / kg. The end result is an increase in crop yield. Three-year and six-season crops tested increased wheat yield by 18.1% and rice yield by 10.9%.