研究氮磷钾肥、微肥、有机肥三者配施对紫花苜蓿饲草产量和品质的影响。
An experiment was carried out to study the effect of NPK fertilizer, micro-element fertilizer, organic fertilizer application on the yield and nutrient quality of Alfalfa Medicago sativa l.
通过大田试验研究了氮磷钾肥对南板蓝穿孔病危害程度的影响及该病的防治措施。
The effects of nitrogen, phosphor and kalium on the hazard index of holing illness and the prophylactic-therapeutic measures has been studied while the field experiment had been applied.
采用田间试验和室内化验相结合的方法，研究施用化学氮磷钾肥对大豆植株氮磷钾含量的影响及植株氮磷钾含量与产量之间的关系。
The field test and lab analysis were used to study the effect of fertilizing on contents of nitrogen, phosphorus, and potassium of soybean plants and the relation of yield and them.
采用三因素二次正交旋转组合设计对氮、磷、钾肥的用量进行了定量研究。
Quantitative study on the quantity of nitrogen fertilizer, phosphate fertilizer and potassium fertilizer was conducted through three-element quadric orthogonal whirling combination design.
在氮、磷充足的基础上施用钾肥，能提高农作物品质。
On the basis of applying sufficient amount of n, p, Potassium can improve the quality of farm products.
运用“311-A”试验设计，探讨宁夏盐池县城西滩扬黄灌区玉米氮、磷、钾肥料的最佳配比。
The"311-A"regression design was adopted to study the optimum ratio of N, P and K fertilizers on maize field of Yellow River Pumping Irrigation District in Cheng Xitan, Yanchi Ningxia.
以强筋小麦临优145为研究对象，分析氮、磷、钾肥配施对其产量与品质的影响。
Taking the high gluten wheat Linyou 145 as example the effect of the nitrogen, phosphorus, potassium fertilizer application on the yield and quality has been studied.
在陕西省关中土娄土区布置线辣椒缺素大田试验，研究线辣椒对氮、磷、钾肥的肥效反应。
Field experiment was carried out in Guanzhong area, Shaaxi province using Capsicum as indicator, to study Capsicum to fertilizer effect reaction of n, p, K fertilizer.
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。
And study the nitrogenous fertilizer response trial, phosphorous fertilizer response trial, potassium fertilizer response trial and nitrogen, phosphorous, potassium nutrition balance separately.
采用“3414”试验方法研究了油菜在不同氮、磷、钾肥施用量组合下，油菜产量与施肥的关系，应用回归效应方程寻找最优施肥量组合。
The relationship between yield and fertilizer application was studied by means of "3414" method under different amounts of N, P and K applied .
采用“3414”肥料效应试验方案，研究了安徽省东至县油菜高产栽培的氮、磷、钾肥肥料效应，并建立了肥料效应函数模型。
Using 3414 fertilizer effect experiment, the effect of nitrogenous(N), phosphate(P), potash(K) fertilizer on rape yield in Dongzhi County was researched.
通过室内模拟培养实验，研究了氮、磷、钾肥交互作用对设施土壤盐分含量与离子组成变化的影响。
The effects of interaction among nitrogen, phosphorus and potassium fertilizers on salt content and ion composition in greenhouse were studied through laboratory incubation experiment.
通过沙打旺、苜蓿对氮、磷、钾肥的效应研究表明：氮肥对它们均为负效应；
Throuth study on effect of A. adsurgens and M. Stativa on N. P.
通过沙打旺、苜蓿对氮、磷、钾肥的效应研究表明：氮肥对它们均为负效应；
Throuth study on effect of A. adsurgens and M. Stativa on N. P.
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