在辽宁柳饶地区风沙性碳酸盐草甸土土壤上，设置常量化肥、半量秸秆还田+常量化肥、全量秸秆还田+常量化肥三个处理，研究了不同量秸秆还田对玉米生长发育及产量的影响。结果表明，与常量化肥相比，秸秆还田处理的植株抗倒伏能力、叶绿素含量不会减小，叶面积指数显著提高，半量秸秆还田处理产量显著提高，全量秸秆还田处理也没有造成减产。

On the carbonate meadow soil contains sand in Liurao area, 3 trial treament such as routine chemical fertilizer, 50% straws return to field plus routine chemical fertilizer, 100% straws return to field plus routine chemical fertilizer were designed to study the effects of straws return to field on growth, development and yield of maize. The results showed that compared to the routine chemical fertilizer, straws return to field could not lessen the resistance of lodging and chlorophy1l content, advanced LAI, and 50% straws return to field increased the yield of maize. There were insignificant difference between 100% straws return to field and the routine chemical fertilizer.

国家粮食丰产工程项目(2004BA520A-11)