yellow paddy 第1页

Effects of longterm fertilization on contents of Zn, B, Cu, Fe and Mn in ricegrain and soil in yellow paddy fields of southern China Combined application of chemical and organic fertilizers long-term increase physical proteetion of organic nitrogen in yellow paddy soil Effect of different fertilization modes on topsoil organic carbon sequestration and productivity in yellow paddy field of southern China Effects of long term fertilization on phosphorus pools and forms in yellow paddy fields of southern China