nitrogen fertilizer的例句大全

CP is the very important method to the development of nitrogen fertilizer industry and environmental protection.

实施清洁生产是从根本上解决氮肥企业发展和环境保护问题的重要手段。

Priming effect of ammonium nitrogen fertilizer on soil nitrogen under waterlogged condition

淹水培养条件下铵态氮肥对土壤氮素的激发效应

Characteristics and Performance of A New Water-Absorbent Slow Release Nitrogen Fertilizer

一种新型保水缓释氮肥有关特征及性能

State and retention characteristics of water in hydrogel of water-absorbent slow release nitrogen fertilizer

保水缓释氮肥水分状态与吸持特征研究

Within the nitrogen fertilizer application rate ( 0-700 kg hm~ (-2)), the more nitrogen fertilizer application rate, the greater content of nitrate in garden sass was found.

在施氮肥0~700kg HM-2范围内，氮肥施用量越多，大青菜硝酸盐含量越高。

The correlation coefficient between growing period of rice and plant growth parameters was higher under zero nitrogen level than that of nitrogen fertilizer level.

水稻生育期与植物生长参数的相关系数在不施氮时均较施用氮肥时的大。

The apparent nitrogen recovery rate, loss rate and fixed rate have no significant difference among four nitrogen fertilizer types.

4种N肥表观回收率、表现损失和固定率均无显著差异。

Nitrogen fertilizer applied in soil have the significant "carry over" effect.

施入氮肥具有明显的carry over效应。

Effect of Nitrogen Fertilizer on Soilborne Wheat Yellow Mosaic Disease

氮素肥料对土传小麦黄色花叶病的影响

Effects of Nitrogen Fertilizer on the Changes of the Photosynthesis in Super Rice Shennong 265 Flag Leaves

超级稻沈农265剑叶光合作用日变化对氮肥的响应

Effect of nitrogen fertilizer structure on the economic yield and quality of lettuce

施氮结构对茎用莴苣经济产量与品质的影响

The main results were as follows: It showed in investigation that the nitrogen fertilizer was used a little more in tumorous stem mustard in Chongqing and the utilization differences among farmers were so obvious that probably lead to the fertilizer lack or excessiveness.

调查结果表明，重庆市涪陵区水稻-榨菜轮作体系中，榨菜季氮肥施用量普遍偏高，各农户之间施用量差异较大，施肥不足与过量问题并存。

Study on Nitrogen Fertilizer Application Economic Effect in Rice Field of Riparian Area

沿江稻田氮肥施用经济效益的研究

Effect of nitrogen fertilizer application and defoliation intervals on root vigour and crude protein in hybrid Pennisetum

氮肥水平和刈割间隔对杂交狼尾草根系活力和粗蛋白含量的影响

The main results were as followings: Increasing nitrogen fertilizer can prominently promote rape yields under the nitrogen supply at level of 22.5 Kg/ 667m~ 2, especially in lean soil.

在施纯氮0～22.5kg/667m~2范围内，增施氮肥能够显著提高油菜产量，在肥力不高的土壤中增产效果更为突出。

Study on measures of improving recovery rate of nitrogen fertilizer

甘肃省提高氮肥利用率措施研究

Studies on the External Costs of and the Optimum Use of Nitrogen Fertilizer Based on the Balance of Economic and Ecological Benefits in the Paddy Field System of the Dongting Lake Area

洞庭湖区氮肥外部成本及稻田氮素经济生态最佳投入研究

Nitrogen fertilizer application inducing non-point source pollution is the main reason for groundwater contamination in the area.

大部分地区存在三氮面状污染，农业氮肥的施用是其主要原因。

RWC in rice plants applied with high nitrogen fertilizer decreased strongly by the injury of BPH nymphs.

被高密度的褐飞虱若虫为害后，高氮肥施用量稻株的相对含水量显著低于低氮肥施用量稻株的相对含水量。

Applying nitrogen fertilizer could enhance the fresh weight and dry weight of Chinese milk vetch, but it had negative effect on the formation of root nodule and the biological nitrogen fixation.

施用氮肥能促进紫云英干物质的积累和鲜草产量的提高，但对其根瘤的形成及生物固氮有负面影响。