我国褐土耕地质量的演变及对生产力的影响
陈延华1,2,王乐1,张淑香1(),郭宁3,马常宝4,李春花1(),徐明岗1,邹国元2
Quality Change of Cinnamon Soil Cultivated Land and Its Effect on Soil Productivity
YanHua CHEN1,2,Le WANG1,ShuXiang ZHANG1(),Ning GUO3,ChangBao MA4,ChunHua LI1(),MingGang XU1,GuoYuan ZOU2

图4. 褐土区长期施肥下小麦、玉米的产量变化

Fig. 4. Yield change of wheat and corn under long-term fertilizer application in cinnamon soil area