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- Nitrogen forms most of the Earth's air. 地球上空气的大部分成分是氮气。
- Nitrogen forms about 78% of the earth's atmosphere. 氮约占地球大气的百分之七十八。
- Nitrogen forms four-fifths of the atmosphere. 氮气占空气的五分之四。
- Nitrogen forms about four-fifths of the atmosphere. 氮约佔大气的五分之四。
- Nitrogen forms about 80% of the air around the Earth. 围绕地球的大气80%25是氮气。
- Eg. Nitrogen forms about four -----fifths of thre atmosphere. 氮约占大气的五分之四。
- Eg. Nitrogen forms about four-fifths of the atmo here. 氮约占大气的五分之四。
- Han X R,Guo P C,Chen E F.Immobilization of fertilizer nitrogen by soil microbes and its changes[J].Acta Pedologica Sinica,1998,35(3):412-418. [19]韩晓日;郭鹏程;陈恩风.;土壤微生物对施入肥料氮的固持及其动态研究[J]
- Urea is a nonionic fertilizer nitrogen material which has become of increasing importance in agricultural production. It is prepared by reacting anhydrous ammonia and carbon dioxide gas under very high pressure in the presence of a suitable catalyst. 尿素是一种非离子型氮肥，在农业生产上变得日益重要。它是在某种催化剂参与下，由无水氨和二氧化碳气体在高压条件下反应生成的。
- Biological nitrogen fixation and nitrogen transfer wasdetected by 15N dilution technology. The percentage of BNF, fertilizer nitrogen andsoil nitrogen to nitrogen yield of grass and legume in monoculture and mixture wereanalyzed, respectively. 利用同位素15N稀释法测量豆科牧草固氮和转氮能力,分析生物固氮、肥料氮和土壤氮在单、混播条件下羊草和豆科牧草体内的比例,并计算生物固氮量对草地氮产量的贡献率。
- Effects of nitrogen form on nitrogen absorption and photosynthesis of different wheat genotypes. 氮形态对不同小麦基因型氮素吸收和光合作用的影响。
- The effects of the different nitrogen forms and proportion on the GS, GOT and GPT in the nitrogen metabolism on cultivar Hanzhong Chinese chive. 以“汉中冬韭”为试材，探讨了不同形态氮素及配比对韭菜氮代谢中谷氨酰胺合成酶(GS)、谷氨酸草酰乙酸转氨酶(GOT)和谷氨酸丙酮酸转氨酶(GPT)的影响。
- A hydroponic experiment was carried out to study the effects of nitrogen forms on the growth and antioxidative enzyme activities in spinach. 摘要在溶液培养条件下研究了不同氮素形态对菠菜生长及叶片抗氧化酶活性的影响。
- Guo S., Brueck H., and Sattelmacher B. 2002.Effects of supplied nitrogen form on growth and water uptake of French bean (Phaseolus vulgaris L.) plants. 郭世伟,邹春琴,张福锁,江荣风2001铁营养状况及不同形态氮素对玉米体内不同铁库铁再利用的影响。
- A pot experiment was conducted to investigate the effect of nitrogen form on the nutrient uptake of chrysanthemum grown in southern Taiwan. 摘要本试验目的在探讨台南部种植冬菊之氮肥管理对菊花养分吸收及生育之影响。
- The range of organic nitrogen forms was nonhydrolysable N>amino acid N>ammonium N> hydrolysable unidentified N>amino sugar N under fertilization conditions. 不同施肥处理有机氮各组分含量随著土层的加深而下降，与有机质的变化规律一致；
- Zou C., Shen J., Zhang F., Guo S., Rengel Z. and Tang C.. 2001.Impact of nitrogen form on iron uptake and distribution in maize seedlings in solution culture. 郭世伟，周百娟，曹国军，李志达，金长荣，孙艳君，张大克，刘兆荣1995氮、磷、钾、硅肥配施对一年生落叶松苗生长状况的影响。
- The effect of nitrogen form,yellowing temperature,curing facility on the content of nitrate, nitrite and Tobacco-specific nitrosmaines (TSNA) were studied. 探讨了氮素形态、变黄温度、烘烤设备等因素对烤烟烟叶中硝酸盐、亚硝酸盐和烟草特有亚硝胺(TSNA)含量的影响。
- Zimin Wei, Shiping Wang, Jinggang Xu. Effects of Inoculating Microbes on Nitrogen Form During the Municipal Solid Waste Compost. The Journal of American Science. 2004. 魏自民;赵越;周连仁.;栽培因子对风砂土区小麦产量影响数学模型研究
- The stalks will rot and make good fertilizer. 杆儿腐烂后会成为很好的肥料。
