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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。
- soil nitrogen forms 土壤氮形态
- 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。
- Effects of long-term plant Medicago sativa Linn. on soil nitrogen nutrient. 长期种植苜蓿对土壤氮素营养的作用
- 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。
- Depletion of soil nitrogen frequently leads to reduced concentrations of soluble amino and amides. 土壤氮素的减少常常导致可溶性氨基酸和酰胺浓度的降低。
- Influence of temperature and moisture on soil nitrogen mineralization under two types of forest in Changbai Moun. Tain. 温度和湿度对长白山两种林型下土壤氮矿化的影响。
- The relative analyses show that the correlation extents were different between various nitrogen forms and nitrogen absorption contents of maize in Albic soil of east regions of Heilongjiang Province. 摘要相关分析表明，黑龙江省东部地区的白浆土中各形态氮与玉米植株吸氮量之间的相关程度不同。
- There was a positive correlation between the amounts of most soil microbe and soil nitrogen content. 土壤中大多数微生物数量与土壤氮素养分含量呈正相关。
- These results indicate that the vegetation has stronger effect on soil nitrogen mineralization than soil types. 不同土地利用方式对土壤氮素矿化作用的影响强于不同土壤类型的影响。
- The priming effect of nitrogen fertilizer on soil nitrogen was studied by using waterlogged incubation method. 摘要应用淹水培养方法，研究了铵态氮肥对土壤氮素的激发效应。
- The soil nitrogen status is a function of the processes of nitrogen fixation, microbial decompostion, nitrificattion and denitrification. 土壤氮状况是一个固氮、微生物分解、硝酸化和脱氮过程的作用。
- The soil nitrogen status is a function of the processes of nitrogen fixation, microbial decomposition, nitrification and denitrification. 土壤氮状况是一个固氮、微生物分解、硝酸化和脱氮过程的作用。
- 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。
- Knoepp J D,Swank W T.Using soil temperature and moisture to predict forest soil nitrogen minerlization[J].Biol.Fert.Soils,2002,36:177-182. 巨晓棠李生秀.;土壤氮素矿化的温度水分效应[J]
- 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。
