To investigate the changes of soil hydrolase activities under application of corn straws with manure, N and P fertilizer, a field experiment was conducted.
通过田间试验，进行了玉米秸秆与厩肥、N肥和P肥配合施入农田后土壤中水解类酶活性变化的研究。
The sequence of the model factor effects (N>K>P) and the relation between high yield and fertilizer application, and the mutual functions among the yield factors of various fertilizers.
明确了模型因素效应顺序（氮肥＞钾肥＞磷肥）和高产与施肥的关系，以及各肥料产量因素间的交互作用效应。
The phosphorus fertilizer is the main restricted factor that the wheat (Jimai20) yield improves. Application of P and N fertilizer could obviously increase the wheat yield.
即在本试验条件下磷肥是济麦20产量提高的主要限制性因素，增施磷肥、适量施用氮肥可以提高其产量。
The increase in available P due to P fertilizer application and the yearly decrease in available P after pot culture varied greatly with soil types.
施磷肥处理所增加的有效磷比例和盆栽后土壤有效磷量逐年下降幅度因土壤类型不同而差异很大。
According to the local soil characteristics, the optimal P fertilizer application rate was also calculated.
并结合当地的特点，推荐了当地的适宜磷肥施用量。
The relationship between yield and fertilizer application was studied by means of "3414" method under different amounts of N, P and K applied .
采用“3414”试验方法研究了油菜在不同氮、磷、钾肥施用量组合下，油菜产量与施肥的关系，应用回归效应方程寻找最优施肥量组合。
Zinc fertilizer increased contents of N, P, K, Fe, Cu and B of wheat seed, Boron fertilizer application promoted the absorption and accumulation of P, K, Zn and Mn in wheat grain;
增施锌对小麦氮、磷、钾、铁、铜和硼的吸收均有促进作用；施硼有利于小麦对磷、钾、锌和锰元素的吸收；
Zinc fertilizer increased contents of N, P, K, Fe, Cu and B of wheat seed, Boron fertilizer application promoted the absorption and accumulation of P, K, Zn and Mn in wheat grain;
增施锌对小麦氮、磷、钾、铁、铜和硼的吸收均有促进作用；施硼有利于小麦对磷、钾、锌和锰元素的吸收；
应用推荐