potassium-nitrogen fertilizer 钾氮肥 ; 钾氮混肥
nitrogen phosphorus potassium compound fertilizer 氮磷钾三元复混肥
Potassium nitrogen mixed fertilizer 氮钾二元复混肥
nitrogen and potassium fertilizer 氮钾
nitrogen phosphorus potassium fertilizer 氮磷钾肥配施
Nitrogen and potassium fertilizer operation 氮
Choose a fertilizer that contains nitrogen, phosphorus, and potassium.
选择含有氮，磷和钾的肥料。
Ammonium sulfate is also used as a fertilizer (although in much higher concentrations), but it only contains nitrogen but neither phosphorus nor potassium.
作为肥料应用的硫酸铵浓度会更高，但其中只有氮的成分，没有磷或钾。
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。
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