But - the most unbalanced NPK ratio.

然而,N、 P、K施用最不平衡.

The loss rate of NPK is 8.71%, and is Minimum.

氮磷钾配施处理氮素损失率最低，为8.71%。

Results indicated that NPK fertilizer was a major factor.

结果表明：氮磷钾肥是主要的影响因素；

NPK treatment had higher soil total N content than that of N treatment.

氮磷钾化肥配合施用，土壤的全氮含量高于长期单施氮肥的处理；

I know when the word fertilizer is mentioned, we usually refer to NPK fertilizers.

我知道，说到肥料，我们通常指的是氮磷钾。

A technological process is described for the manufacture of urea-based NPK compound fertilizers.

叙述了利用尿素制NPK尿基复合肥料生产工艺。

Application of chemical fertilizer (N, NPK) could increase soil total N content compared with CK.

施用化肥（N、NPK）比不施肥的农田（CK）具有较高的土壤全氮含量水平；

Generally, the absorption rate and the loss rate of the NPK under long-term locating is better than the long-term single application of N and NK.

总体来讲长期氮磷钾肥配施的处理氮肥的吸收率、氮肥的损失量显著优于单施氮肥和氮钾肥配施的处理。

The results show that no significant difference was observed in composition of weed communities between plots receiving balanced NPK fertilization of organic manure or chemical fertilizer.

结果表明：N、P、K平衡施用时，无论是施用有机肥，或是施用无机化肥，田间杂草的种群组成相似；