nitrogen requirement
英 [ˈnaɪtrədʒən rɪˈkwaɪəmənt]
美 [ˈnaɪtrədʒən rɪˈkwaɪərmənt]
n. 需氮量
双语例句
- 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 - The process of naked cooling with nitrogen cycle refrigeration was proposed according to the producing requirement, followed by some points to note during the naked cooling process.
根据生产需要，提供了利用氮气循环制冷实现空分设备裸冷的工艺方法，分析了实施过程中的注意问题； - Nitrogen Fertilizer Requirement and Utilization Ratio of Rice Production in the Cold Area A Study of Yielding the Diazonium Salt on Mixing Basic and Acidic Waste Water Formed in the Manufacture of Trinitrotoluene
寒地水稻生产氮肥需要量与利用率研究关于梯恩梯酸碱性废水相混产生重氮盐的研究 - The results show that when the nitrogen content is decreased, the yield strength of hot rolled plate decreases, which meets the requirement of cold-rolled base stuff.
指出了钢中氮质量分数的减少可降低热轧板屈服强度，且满足供冷轧基料的要求。 - Effect of Nitrogen and Potassium fertilizer on Yield and Quality of Brassica chinensis Study on the Inheritance of Chilling Requirement of Crossed Peach Progenies
小白菜氮钾适用量研究桃需冷量遗传特性的研究 - Content: Through studying distribution and consistency variation of nitrogen 、 phosphorus 、 potassium in organ and content of nitrogen 、 phosphorus 、 potassium in every period of Red Globe grape, we conclude the pattern of requirement of fertilizer of Red Globe grape.
通过对氮、磷、钾在全球红葡萄各器官中的分配和浓度变化及氮、磷、钾素在葡萄各生育阶段含量变化的研究，得到全球红葡萄的需肥规律。 - The sediment nitrogen release contributes to 14% requirement of inorganic N for the primary production in the water column whereas net absorption of phosphate makes a negative contribution.
底层营养盐通量对水层初级生产所需无机N的贡献为14%、对无机P有负的贡献（表现为净吸收）。 - In some areas, nitrogen deposition has exceeded the N requirement by forest ecosystem.
在一些地区，大气N沉降超过了森林生态系统的N需求。 - The results indicated that: ( 1) CO_2 laser cutting with nitrogen jet assistance can provide a better squareness, its cutting quality meets the requirement that butt gap for the edges must be less than 0.1 mm.
研究表明，氮气辅助CO2激光切割方正度较好，切口质量符合裁焊板拼接间隙小于0.1mm的要求。 - The nitrogen requirement for maintenance ( Nm) was determined by nitrogen balance.
试验采用氮平衡试验研究产蛋高峰期罗曼公、母鸡的氮维持需要量（Nm），并分析公、母鸡氮代谢的变化规律。 - Study on Suitable Sowing Period and Nitrogen Requirement of Super-sweet Corn "Mintian 107"
超甜玉米闽甜107适宜播种期及需氮量研究 - Model studies indicated that the atmospheric input, riverine input and benthic flux of inorganic nitrogen account for 3, 4 and 12 percent of nitrogen requirement by phytoplankton ( NRP) in the Bohai Sea and Yellow Sea, respectively.
模式研究结果表明，大气沉降、陆源输入和海底输入的无机氮通量分别占黄、渤海无机氮浮游植物总需求量的3%、4%和12%。 - In the study 20 adult pheasants were selected to determine endogenous metabolic nitrogen ( EMN) and crude protein requirement for maintenance ( RCPm) by the methods of nitrogen free diet regression analysis.
本研究选择20只成龄母雉鸡，采用无氮日粮法和回归分析法比较测定内源代谢氮和维持蛋白质需要量。 - The nitrogen requirement for maintenance ( N m) was determined by nitrogen balance trial and nitrogen-free experiment respectively.
本试验采用氮平衡试验法和无氮日粮法研究了绍鸭的氮维持需要（Nm）。 - Nitrogen Requirement of Growth and Photosynthesis in the Juvenile Sporophyte of Laminaria japonica
海带（LaminariaJaponica）幼孢子体生长和光合作用的N需求 - The average of Nm 'was 0.498 mg · g-1 · d-1.The results from nitrogen-free diet experiment show a negative correlation between nitrogen requirement for maintenance and feed intake of nitrogen-free diet;
g-1.d-1。无氮日粮法的结果表明：Nm′与无氮日粮的采食量呈负相关； - Determining nitrogen requirement by rape yield and nitrogen efficiency of pig manure
油菜因产定氮及猪厩肥中氮素利用折算率研究 - Study on Influence of Appling Plant Growth Regulators on Growth and Nitrogen Requirement of Kentucky Bluegrass and Tall Fescue
植物生长调节剂对草地早熟禾、高羊茅生长及氮素吸收的影响研究 - By using the technology called Selective Catalytic Reduction, for short SCR, can greatly reduced the amount of nitrogen oxide exhausts in the exhaust emission and meet with requirement of the law of emission.
利用排气后处理的选择性催化还原减氮法（SCR）技术能够大幅度降低NOx排放量，满足排放法规的要求。 - Dietary nutrient digestion and nitrogen metabolism in the experimental animal were determined, and maintenance protein requirement for weaning sika deer was suggested.
通过对营养消化代谢参数的测定，研究了日粮蛋白质水平对断乳仔鹿氮消化和氮沉积规律及营养物质消化代谢的影响，并初步确立了断乳仔鹿的蛋白质维持需要量。 - CNC cannot only reflect the nitrogen nutrition status in the vegetable, but also its critical water requirement and critical water use efficiency.
硝态氮临界含量不仅可以反映作物的氮素营养状况，还可间接反映作物对水分的利用情况。 - Study on Nitrogen Requirement and Split Application of Nitrogen Fertilizer in Ratooning Rice
再生稻需氮特性和分次施氮的研究 - Nitrogen Requirement for Maintenance in Shaoxing Ducks
绍鸭氮维持需要量的研究 - In recent years, with the aggravation of the water eutrophication, the discharge standard of nitrogen has been more and more stringent. However, a higher requirement has been raised due to the lack of carbon source while the nitrogen source is excess generally.
近年来，随着水体富营养化的加剧，氮的排放标准越来越严格，但是由于生活污水中碳源不足氮源过量已较为普遍，这对脱氮提出了更高的要求。 - Phosphogypsum-based sulphur-nitrogen fertilizer, which could control the nitrogen release according to the crop nutrient requirement, was prepared from phosphogypsum and general fertilizer ( ammonium bicarbonate and urea) as the material.
以磷石膏和氮肥为主要原料，制备能根据作物营养需求控制氮素释放的磷石膏基硫氮肥。