1.
Studies on Nitrogen Requirement and Nitrogen Utilization Efficiency of Hybrid Rice in Nanchang
南昌杂交稻需氮量与氮利用率的研究
2.
The amount of nitrogen needed will increase as yield increases.
随着产量增加，需氮量也要增加。
3.
The key pollution indicators are ammonia nitrogen and BOD.
主要污染指标是氨氮和生化需氧量。
4.
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。
5.
The Absorb Rule of Fertilizer about Huai Flos Chrysanthemum and the Combined Application Effect of Nitrogen Phosphorus and Potassium Fertilizer on It Yield;
怀菊花需肥规律与氮磷钾配施对其产量的影响
6.
Rice Production and Utilization of Nitrogen Fertilizer Requirements for Preliminary Report
水稻生产氮肥需要量与利用率试验初报
7.
Nitrogen Fertilizer Requirement and Utilization Ratio of Rice Production in the Cold Area
寒地水稻生产氮肥需要量与利用率研究
8.
The oxygen content in the vent pipe of the equipment has to be checked for the concentration of O2 to get the required amount of Nitrogen.
需要检查设备放空管线中氧气的浓度，来确定所需要的氮气的量。
9.
You are given three moles of hydrogen, lf nitrogen is in excess, how many moles of ammonia are produced, and how many moles of nitrogen are needed?
如果氮气足量,3摩尔氢气需要消耗多少摩尔氮气,可以产生多少摩尔氨气?
10.
Study on Requirement of Copper for Beef Cattle under Different Dietary Levels of NPN and Sulfur
不同日粮非蛋白氮、硫水平下肉牛铜的需要量研究
11.
The flowering fertilizer will lower the amount of stored nitrogen in the plant and increase the amount of stored carbohydrates necessary for the production of roots.
开花肥会降低植物中贮存氮的量，而增加贮存为了根的生产需要的碳水化合物的量。
12.
An element, such as carbon, hydrogen, oxygen, or nitrogen, required in large proportion for the normal growth and development of a plant.
大量营养素满足植物正常生长和发育而需要的大量元素，如碳、氢、氧或氮等
13.
Tubes are generally mounted on truck-trailer chassis or railroad car beds, or placed at stationary locations when large amounts of nitrogen are needed.
管道一般是安装在拖车底盘或有轨车底座上，或者当需要大量氮时放置在固定位置。
14.
On account of high-yielding maize large nutrient demands in a shorter growth period, more than 65% of total N should be distributed to it.
考虑到高产玉米在很短的生育期中需要大量养分，应分配超过65%的总氮给它。
15.
Effects of Nitrogen and Irrigation Rate on Nitrogen and Carbon Metabolism and Yield in Winter Wheat;
灌溉量和施氮量对小麦碳氮代谢及产量的影响
16.
Test methods for nitrogen content of nitrogen-doped getter
GB/T6625-1986掺氮吸气剂含氮量测试方法
17.
The total absorption of nitrogen increased with the amount of nitrogen topdressing, but the proportion of absorption nitrogen during the blooming period to total nitrogen were downtrend.
棉花总吸氮量随著追氮量的增加而增加，但花铃期吸氮量占总吸氮量的比例呈下降趋势。
18.
Fertilizers--Determination of nitrate nitrogen content--Nitron gravimetric method
GB/T3597-1983肥料中硝态氮含量的测定氮试剂重量法