Relationship of growth and nutrient requirement of Populus tomentosa seedlings;
毛白杨苗期生长特性及需肥量研究
Forecasting prudently fertilizer demand for the future;
应谨慎预测未来化肥需求量
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
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
This plant is a gross feeder.
这植物需要大量肥料。
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。
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。
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
These plants need no nitrogen fertilizers and leave the soil rich in nitrogen.
这样的植物不需要施用氮肥，并且还给土壤留下了丰富的氮。
The amount of nitrogen needed will increase as yield increases.
随着产量增加，需氮量也要增加。
The key pollution indicators are ammonia nitrogen and BOD.
主要污染指标是氨氮和生化需氧量。
Effects of nitrogen application on grain yield and quality of Wanmai 48
追施氮肥对皖麦48产量及主要品质性状的影响
Treatments of manure, lime, N, P, and K are necessary to maintain nutrient levels and productivity of the soil.
需要粪肥、石灰、氮、磷和钾处理以维持土壤养分水平和生产力。
Test on Yield and Main Economic Properties resulting from Different Nitrogen Elements Applied to Zhongzheyou No.1
不同氮肥用量对中浙优1号产量及主要经济性状的影响试验
Effects of Different Ratios of Base N to Dress N Fertilizer on Nitrate Content in Chinese Cabbage and the N Use Efficiency
氮肥不同基肥、追肥比例对小白菜硝酸盐含量及氮肥利用率的影响
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。
Studies on Energy and Protein Requirements of Mixtus Sheep and Fatting Lambs;
杂种母羊和育肥羔羊能量蛋白质需要的研究
Studies on Digestible Methionine and Lysine Requirement of Egg-Type Cockerels;
育肥蛋公雏可消化蛋氨酸、赖氨酸需要量的研究
Effects of Different Nitrogen Fertilizer Application Rate and Different Topdressing Way on Yield and Efficiency for Maize Zhongyu 15
氮肥用量和追肥方式对玉米中玉15产量和氮肥利用效率的影响
Nitrogen manuring is essential to get a good yield of cut herbage.
为了获得刈割牧草良好的产量，使用氮肥是极为重要的。