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 difference in the response of yield components to fertilizer among rice varietal types was studied.
研究了水稻品种类型间产量构成因素对肥力反应差异。
The quota system of competitiveness was established in response to the characteristic of phosphate fertilizer enterprises, and the mathematic model for quantitative assessment was put forward.
本文根据磷肥企业的特点，建立了其竞争力评价体系，并在此基础上确定了定量分析的模型。
The problems concerning biomass, yield, adaptability to environment, response to chemical fertilizer and after effect of pasture- grain rotation were discussed also in the paper.
根据试验结果，讨论了草粮轮作的生物量、产量、适应性、对化肥的反应以及后效等方面的问题。
The yield response of crop to phosphate fertilizer and organic manure and the loss risk of phosphorus in soil were studied using a long-term experiment.
采用磷肥和有机肥田间定位试验的作物产量效应和土壤积累磷的环境风险相结合的方法。
The trial was established with a purpose to ascertain the yield response to Feiligao, a nitrogen fixation bacterial fertilizer, and its best application rate on tobacco.
为验证生物固氮菌肥肥力高的增产效果，探讨用于烤烟的最佳施用量，进行了试验。
Understanding the changes in grain quality and its response to nitrogen (N) fertilizer during the improvement of crop varieties has great significance in both crop breeding and cultivation.
旨在探明中籼水稻品种改良过程中米质变化特点以及施氮量对其产量和品质的影响。
So in order to get good response for hybrid early rice , potassium fertilizer should be applied at early stage, attention should also be paid to middle stage ;
因此为了使杂交早稻有更好的反应，钾肥应在早期施用，中期也应重视钾；对杂交晚稻来说，在苗期和分蘗期应格外注意施钾，在中后期也应根据钾营养状况施用一定量钾。
So in order to get good response for hybrid early rice , potassium fertilizer should be applied at early stage, attention should also be paid to middle stage ;
因此为了使杂交早稻有更好的反应，钾肥应在早期施用，中期也应重视钾；对杂交晚稻来说，在苗期和分蘗期应格外注意施钾，在中后期也应根据钾营养状况施用一定量钾。
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