n-p-k

英 [en piː keɪ]

美 [en piː keɪ]

网络氮磷钾

The results demonstrated that the contents of endogenous hormone GA-3 in flag leaves as well as grains improved after spraying GA-3,6-BA and N-P-K nutrient liquid, however the contents of ABA decreased.
结果表明，喷施GA3,6-BA，N-P-K营养液后，旗叶和子粒中内源GA3的含量增加，ABA的含量降低；
The variant levels of calcium magnesium phosphate affected absorption of N-P-K nutrient with evey peanut bearing state from soil.
钙镁磷肥的不同用量对花生各生育阶段从土壤中吸收N、P、K营养元素的作用不同。
Effect of humic acid N-P-K compound fertilizer on yield, marketable tuber rate and starch content of potato
腐殖酸氮磷钾复合肥对马铃薯产量、商品率及淀粉含量的影响
Studies on the effects of N-P-K on the growth of new varieties of Azolla and the technique of fertilization
绿萍新品种的营养特性及其施肥技术的研究
The Rational Application of N-P-K Fertilizer to Potatoes in Southwest Shanxi Mountain Areas
晋西南山区马铃薯氮磷钾肥肥效及合理施用
The modulating effects of source-sink and the hormone contents of different wheat varieties were studied by spraying exterior substance after florescence.
研究不同粒型小麦品种花后叶面喷施GA3,6-BA等植物生长调节物质及N-P-K营养液（以下称外源物质），对小麦激素含量及源库的调节作用。