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利用小麦-玉米轮条件下不同秸秆还田方式进行定位试验,对不同秸秆还田方式下土壤有机碳和活性有机碳含量进行了6a11季的连续监测,结果表明:单施化肥和秸秆还田配施化肥均能提高土壤有机碳含量;3种还田方式均能显著提高活性有机碳和碳库管理指数,表现为玉米秸秆还田>两季秸秆还田>小麦秸秆还田;3种秸秆还田处理的土壤有机碳增长速率为玉米秸秆还田>两季秸秆还田>小麦秸秆还田。小麦季玉米秸秆还田对有机碳活性提升效果优于两季秸秆还田和玉米季小麦秸秆还田。
Using wheat - corn cob conditions of different ways to carry out the positioning of straw, soil organic carbon and active organic carbon under different conditions of the straw continuous monitoring of the 6a11 season, the results showed that: the single fertilizer and straw with field Fertilizer can increase soil organic carbon content; 3 kinds of return to the soil can significantly improve the active carbon and carbon management index, the performance of corn stalks return> two seasons straw> wheat straw return to the field; three straw also Field treatment of soil organic carbon growth rate of corn stalks back> two seasons straw> wheat straw. The effect of returning wheat straw to field on the activity of organic carbon was better than straw returning to wheat field and wheat straw returning to wheat field in two seasons.