nitrogen and phosphorus fertilizer的意思|示意

Fertilizer use differs from country to country, and from too little to too much. Nitrogen and phosphorus can produce big crops. But they can also pollute water and air.

肥料的使用因国而异，并且使用的多少也有差别。氮和磷能使作物长得粗壮。但同时也会对水和空气造成污染。

The paper studied the effect of complex fertilizer to yield and nutrtion of nitrogen, phosphorus and potassium of soybean in this experiment.

通过田间试验及室内分析相结合的方法，研究了大豆专用复混肥对轮作、连作大豆氮、磷、钾营养及产量的影响。

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。

Nitrogen, phosphorus, potassium are essential macro elements to plant growth, and also commonly used fertilizer in agriculture.

其中氮、磷、钾是植物生长必需的大量元素，也是农业生产中常用的肥料。

Adding phosphorus and kalium fertilizer on the base of nitrogen was propitious to increasing protein content and decreasing oil content.

在施氮肥的基础上增施磷钾有利提高含油量，降低蛋白质含量。

It was significant to study the nitrogen and phosphorus losses from surface runoff in double cropping rice filed for guiding the rational fertilizer and protecting water environment.

研究双季稻田不同施肥量处理的氮磷降雨径流损失规律，对于指导双季稻合理施肥、保护水环境具有重要的现实意义。