chemical nitrogen fertilizer

常見例句

Nitrogen phosphorus chemical fertilizer combined organic improve yield, more ideal way of fertilizing. But should pay attention to the plain supplement of potassium at the same time.
氮磷化肥配施有機肥具有持續(xù)提高產量、培肥土壤的雙重效果，是砂姜黑土培肥改良較理想的施肥方式，但同時要注意鉀素的補充。
The dosage and the time of nitrogen supply according to the present recommendation for the application rate of chemical fertilizer nitrogen can not meet the demand of tobacco plant for nitrogen.
生產中普遍推薦的肥料施用技術所提供的氮素與煙株生長的需氮規(guī)律不吻合。
In order to find out the losses and moving directions of nitrogen in chemical fertilizer, an experiment of "measure pit" at rice and barley field has been conducted in Qingpu County, Shanghai.
為了解化肥中氮素的流失情況及去向，對上海青浦縣進行了水稻、大麥田間測坑試驗研究。

But improved farming methods later increased their yields and, at the same time, made better use of chemical nitrogen fertilizer.
Scientists at the agroforestry center say the use of fertilizer trees can reduce the need for chemical nitrogen by up to three-fourths.