长期施肥下华北潮土生产力演变及影响因素分析
王乐1,陈延华1,2,张淑香1(
),马常宝3,孙楠1,李春花1()
),马常宝3,孙楠1,李春花1()
Evolution of Fluvo-Aquic Soil Productivity Under Long-Term Fertilization and Its Influencing Factors
WANG Le1,CHEN YanHua1,2,ZHANG ShuXiang1(),MA ChangBao3,SUN Nan1,LI ChunHua1()
),MA ChangBao3,SUN Nan1,LI ChunHua1()
图2. 基础地力对作物产量的影响
Fig. 2. The effect of basic soil fertility on crop yield
