nitrogen and potassium fertilizer的意思|示意

The nitrogen, phosphor, potassium and other trace elements added for necessary of plants, it can be multi-functional and efficient liquid compound fertilizer complex.

配以植物所需的氮、磷、钾和微量元素后，可成为多功能、高效的液体复合肥。

The invention relates to a slow-release type nitrogen-phosphorus-potassium composite fertilizer and a production method thereof, belonging to a composite fertilizer with slow-release type nutrient.

本发明是一种缓慢释放型氮磷钾复合肥料及其生产方法。属于营养成分缓 慢释放的混合肥料。

The effect of potassium increased with increasing yield and nitrogen fertilizer.

钾肥效应随着产量和施氮量提高而增大。

And study the nitrogenous fertilizer response trial, phosphorous fertilizer response trial, potassium fertilizer response trial and nitrogen, phosphorous, potassium nutrition balance separately.

分别从氮肥效应试验、磷肥效应试验、钾肥效应试验和氮磷钾养分平衡进行了研究。

Nitrogen fertilizer and compound fertilizer are suitable for the seeding period, while compound fertilizer, phosphorus and potassium fertilizers are suitable for the period of root forming.

苗期适用氮肥及复合肥，块根形成期适用复合肥及磷钾肥。

In cases where sewage sludge is used, expensive chemical fertilizer use can be avoided, he said. The sludge contains the same critical nutrients-nitrogen, phosphorous, and potassium.

有时候，人们用下水道污泥来代替昂贵的化学肥料，其中一样含有重要的营养成分——氮，磷和钾。