Studies were conducted on the effect of nitrogen fertilizer kinds on growth, photosynthetic rate, yield, value and content of aromatic matter of Oriental tobacco.
研究了不同氮肥种类对香料烟生长、光合速率、产量、产值及香气物质含量的影响。
The growth rate and moving biomass of Kentucky bluegrass turf were affected by the quantity of nitrogen fertilizer.
氮肥用量是提高草地早熟禾草坪生长速率和修剪量的主要因素。
The yield increase of K fertilizer was quite high at two rates of nitrogen application, and it closely relative to the content of available K in soil and potassium application rate.
钾肥的增产效率在两种氮肥水平下都较高，单位钾肥的增产量与土壤有效钾含量及施钾量呈极显著负相关；
So choosing and breeding maize variety of highly nitrogen fertilizer utilization rate based on different maize genotype is a positive and efficient measure to the problem.
针对这一情况，一种积极有效的措施就是根据玉米基因型存在差异而选育氮高效玉米品种。
The result showed: Among all examined fertilizers, the nutrient release rate of urea was the highest and that of controlled release nitrogen fertilizer was the lowest.
研究结果表明：控释氮肥养分释放速率最低、肥效最长，与尿素相比可改善运动场草坪的外观品质；
The optimum fertilizer rate was as follows: nitrogen fertilizer 334.
试验的最佳施肥量为：氮肥334。
The results showed that when organic nitrogen fertilizer was applied, the plant height was lower and leaves were smaller, while the photosynthetic rate was higher in the latter stage of growth.
结果表明，施有机氮肥较无机氮肥处理的烟株，植株矮，叶片小，但生长后期叶片光合速率较高。
The results indicated that net photosynthetic rate (Pn)of lettuces was increased by adding nitrogen and potassium fertilizer and light intensity.
通过盆栽试验研究了增施氮钾和光照强度对不同品种莴笋光合特性和产量的效应。
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。
In certain scale, as the rates of nitrogen dressing increased, the utilization rate of nitrogen fertilizer was higher.
随追氮比例的增加，烟株对氮肥的利用率明显增大。
Results showed that whether microbial inoculation or not increase of fertilizer nitrogen rate raised celery yield.
结果表明，无论是否接种生物菌剂，增施氮肥均有利芹菜产量的提高。
All over the world, increase the nitrogen fertilizer application rate is an important measure to increase maize production right now.
就目前全球情况而言，增加氮肥的施用量是提高玉米产量的一条重要措施。
All over the world, increase the nitrogen fertilizer application rate is an important measure to increase maize production right now.
就目前全球情况而言，增加氮肥的施用量是提高玉米产量的一条重要措施。
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