Geographic differentiation of yield increase efficiency caused by recycled nutrients in agro ecosystems
Shen Shanmin, Yin Xiuyan, Yu Wantai, Zhang Lu, Chen Xin, Liu Hongxiang, Wang Delu, Wang Kairong, Zhou Weijun, Xie Xiaoli
Chinese Journal of Applied Ecology
.
1998, (4): 379
-385
.