total crop straw return 秸秆全量直接还田
The inputs of carbon and nitrogen were higher than their outputs. From the point of substanable development, this region should increase the manure input and the proportion of crop straw return and decrease the N fertilizer application in the future.
在目前的农田管理措施下土壤碳氮均处于正平衡,但从可持续发展的角度来看,该地区在以后的农业生产中应适当增加有机肥的投入和秸秆还田的比例,减少氮肥的施用量。
参考来源 - 华北高产粮区土壤温室气体排放及碳氮平衡研究·2,447,543篇论文数据,部分数据来源于NoteExpress
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