我国麦田有机肥替代化学氮肥的产量及经济环境效应
李永华1(),武雪萍2,何刚1(),王朝辉1()
Benefits of Yield, Environment and Economy from Substituting Fertilizer by Manure for Wheat Production of China
LI YongHua1(),WU XuePing2,HE Gang1(),WANG ZhaoHui1()

图3. 有机肥替代对氮损失的影响

Fig. 3. Effects of substituting fertilizer by manure on N losses