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But improved farming methods later increased their use yields andin , at the same time, made better use of chemical nitrogen fertilizer. 但是不久以后改进耕种方法增加了农场的产量而且同时让化学氮肥的使用更合理。
In the absence of chemical nitrogen fertilizer, the effective use of phosphate and potash fertilizers is largely limited to leguminous crops only (forage crops, green manure crops or pulses). 在没有氮化肥配合的条件下，磷、钾肥的有效利用仅仅局限于豆类作物如牧草、绿肥和豆类等等。
Effects of the application of chemical nitrogen fertilizer on the nitrate content of Leek planted in green house 化学氮肥施用技术对温室韭菜硝酸盐含量影响
Chemical nitrogen fertilizer 氮肥
Exertion of Biological Nitrogen Fixation in Order to Reducing the Consumption of Chemical Nitrogenous Fertilizer 发挥生物固氮作用减少化学氮肥用量
Nitrate content in plant tissue was increased with the percentage of chemical nitrogen in the mixture of chemical fertilizer and AFR. 沼肥中配施化肥 (简称沼化肥 ) ,随化肥氮比例增加 ,油菜硝酸盐含量增加。
What is the cost of using nitrogen fertilizer on a rice crop? 水稻使用氮肥的成本是什么?
Should nitrogen fertilizer be applied after injected swine manure? 如何树立种猪引入的科学理念?
Fritz Haber was a Nobel Prize winning Jewish scientist who created cheap nitrogen fertilizer and also made chemical weapons for the German side in World War I. 弗里兹哈伯是位诺贝尔奖得主，犹太科学家，他发明了便宜的氮肥料，但也为一战中的德国方面发明了化学武器。
Scientists at the agroforestry center say the use of fertilizer trees can reduce the need for chemical nitrogen by up to three-fourths.And they say it can double or triple crop production. 农地林业中心的科学家称，使用肥料树木可以将对化学氮素的需求减少四分之三，还可以将土地产量提高两到三倍。
Utilization efficiency of nitrogen fertilizer and Kalium were enhanced. 促进番茄对氮和钾的吸收。
Anhua County Nitrogenous Fertilizer Fact. 安化县氮肥厂。
Chemical nitrogenous fertilizer 化学氮肥
Mechanisms of Nitrogen Fertilizer Suppressing Atmospheric Methane Oxidation by Methanotrophs in Soils. 氮肥对土壤氧化大气甲烷影响的机制。
Effect of nitrogen fertilizer on yield and nitrate content in Brassica oleracea L. Var. Capitata L. 氮肥对结球甘蓝产量与硝酸盐含量的影响。
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。
The total phosphorus requirement is relative to the potential of soil phosphorus and nitrogen fertilizer application. 总磷需求量与土壤磷潜力和施用氮肥有关。
Rice RVA profiles (PKV, HPV and CPV) decreased with Panicle nitrogen fertilizer rates. 各品种稻米的黏滞谱曲线随着氮肥的增加均呈整体下降趋势；
The effects of coated controlled-release nitrogen fertilizer (CRNF) on corn yield increase are studied. 采用包膜控释氮肥在玉米上进行肥效试验研究。
The priming effect of nitrogen fertilizer on soil nitrogen was studied by using waterlogged incubation method. 摘要应用淹水培养方法，研究了铵态氮肥对土壤氮素的激发效应。