farmyard manure 第1页

Change of farmyard manure application in Shaanxi Province Effects of nutrient and water regimes on paddy soil quality and its compre-hensive evaluation in the Taihu Lake Region Dynamics of microbial biomass C in a black soil under long-term fertilization and related affecting factors Dynamics of urease activity in a long-term fertilized black soil and its affecting factors Dynamics of microbial biomass P and its affecting factors in a long-term fertilized black soil