Nitrogen and potassium nutrition的意思|示意

The effect of the level and proportion of nitrogen, phosphorus and potassium on the nutrition and industrial quality of wheat was studied with Yumai 34 and Zhengzhou 9023 as materials.

以豫麦34号和郑州9023为材料，研究了氮、磷、钾施用量及其配比对小麦营养品质和加工品质的影响。

Potassium is a major nutrient in higher plants, which together with nitrogen and phosphorus is known as the "three essential factors" of plant nutrition.

钾是植物生长发育所必需的大量元素，是与氮、磷并列的植物营养的“三大要素”之一。

The results showed that lime soil supplied the plants with more nitrogen nutrition, less phosphorus and potassium nutrition.

结果表明，石灰岩类土壤提供给烟株吸收利用的氮养分较多，而磷钾养分较少。

Purple soil supplied the plants with more phosphorus and potassium nutrition and less nitrogen nutrition.

紫色类土壤提供给烟株吸收利用的磷钾养分较多，而氮养分较少。

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。

The experiments results show that the effect of alternative freezing and thawing has a great influence on the organic matter, nitrogen nutrition, potassium nutrition and soil enzyme activities.

研究结果表明，冻融交替作用对黑土有机质、氮钾及酶活性产生重要的影响。