N-P-fertilizers的意思|示意

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。

On the basis of N and P fertilizers, application of the multiple element compound has positive effect on yield in the acid soils.

在氮、磷肥施用的基础上，配施富钾硅多元复合物与施纯硅肥、钾肥、钙镁肥一样，在酸性土壤上具有显著的增产效应；

This compound manure could fairly raise the output of paddy in the trail, and as good as N, P, K fertilizers used.

结果表明：该有机复合肥对水稻的增产效果显著，肥效与N、P、K三元复合肥相当，值得进一步研究开发。

The regression mathematical models for the yields of summermilletassociated with crop density, N and P fertilizers were established by using the optimal saturation D design.

研究采用二次饱和D-最优设计，建立了夏谷产量与密度、磷、氮肥的回归数学模型。

Organic-inorganic granular fertilizer made of chicken manure powder plus N, P, K chemical fertilizers and microelements B, Zn, Mn, et al.

利用鸡粪为主体原料配以N、P、K化学肥料和硼、锌、锰等微量元素制成便于贮藏、运输和使用的有机-无机颗粒肥。

The"311-A"regression design was adopted to study the optimum ratio of N, P and K fertilizers on maize field of Yellow River Pumping Irrigation District in Cheng Xitan, Yanchi Ningxia.

运用“311-A”试验设计，探讨宁夏盐池县城西滩扬黄灌区玉米氮、磷、钾肥料的最佳配比。