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- The nitrogen utilization efficiency were downtrend with the amount of topdressing increased. 随著施氮量增加,追施氮肥的利用率明显下降。
- Effect of the regionalized balanced fertilization on nitrogen utilization efficiency and soil nutrient balance was studied. 本文研究了分区平衡施肥技术对氮肥利用率和土壤养分平衡的影响。
- Effects of fertilizer application on nitrogen utilization efficiency and nitrate content in hybrid Pennisetum was studied in Nanjing,Jiangsu province. 在江苏南京地区,研究了肥料运筹对杂交狼尾草氮素吸收利用效率和植株硝酸盐含量的影响。
- An experiment was conducted to determine the effect of varying levels of dietary methionine on nitrogen utilization,wool production and relative blood traits of Angora rabbits. 利用32只1岁左右体重3 5kg的安哥拉兔研究了日粮不同蛋氨酸水平对氮利用、产毛性能及相关血液指标的影响。
- Differences also existed in terms of Nitrogen utilization efficiency (NUE) and Nitrogen efficiency ratio (NER) between cultivars and among PGR treatments. 氮利用效率(NUE)和氮效率比(NER)在基因型和不同植物生长剂处理之间存在着显著差异。
- In two series experiments by-pass nitrogen(BPN), amino acid passage to the abomasum, rureen metabolic parameters and nitrogen utilization were studied respectively. 利用四头装有瘤胃和皱胃瘘管的阉公羊以及四头未装瘘管的阉公羊进行两系列实验,测定通过瘤胃蛋白、皱胃氨基酸通过量以及瘤胃消化代谢和氮的利用。
- Based on the long-term field experiments, the relationships between soil nitrogen balance, nitrogen utilization efficiency (NUE) and soil nitrate were studied. 摘要 利用长期肥料试验资料研究了土壤氮素平衡、氮肥利用率和土壤硝态氮之间的相互关系。
- The effect of nitrogen fertilizer kind and dose on nitrogen migration, leaching loss and nitrogen utilization rate by rice in purple soil was studied in percolating pools. 摘要 利用养分渗漏池研究了紫色土中氮肥品种、用量对氮素移动、淋失和水稻氮肥利用率的影响。
- The optimum fermentation carbon- nitrogen utilization conditions of the strain BTL 2 3 were obtained by the uniform design method,and the result was implemented into the fermentation process for the mass production of lovastatin. 在对菌株 BTL2 3进行碳、氮源考察的基础上 ,采用均匀设计方法对培养基进行优化 ,使 BTL2 3成功用于洛伐他汀生产实际。
- All EAN treatments increased nitrogen flow efficiency (NFE) and nitrogen recovery efficiency (NRE),compared with single NO - 3,but EAN treatments before jointing had significant effects on increasing nitrogen utilization. 与对照相比 ;EAN提高了氮流效率和吸收效率 ;但以拔节前处理最为明显 .
- Wang Z Q,Wang M E.Study on genotypic variation in nitrogen utilization efficiency and correlation among traits of spring soybean[Glycine Max (L) Merill][J].J.of Biomathematics,2002,17(2):221-228. [8]汪自强;王美娥.;春大豆氮利用效率基因型核性状间的相关研究[J]
- Zheng S X,Nie J,Xiong J Y el al.Study on role of controlled release fertilizer in increasing the efficiency of nitrogen utilization andrice rield[J].Plant Nutr.Fert.Sci.,2001,7(1):11-15. [15]郑圣先;聂军;熊金英;等.;控释肥料提高氮索利用率的作用及对水稻效应的研究[J]
- Compared with homotypic lines, CMS lines maintained higher individual nitrogen utilization efficiency than their homotypic lines, but the response to N fertilizer was relatively lower. CMS玉米单株氮效率较高,氮响应度相对较低。
- Yang W Y,He M R,Wang Y J et al.Effect of controlled-release urea combined application with urea on nitrogen utilization efficiency of winter wheat[J].Plant Nutr.Fert.Sci.,2005,11(5):627-633. [2]杨雯玉;贺明荣;王远军;等.;控释尿素与普通尿素配施对冬小麦氮肥利用率的影响[J]
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- Nitrogen forms most of the Earth's air. 地球上空气的大部分成分是氮气。
- The lamp is full of gaseous nitrogen. 灯里充满了气体氮。
- Nitrogen utilization efficiency for grain production 氮素籽粒生产效率
- Nitrogen forms about 78% of the earth's atmosphere. 氮约占地球大气的百分之七十八。
- Will you sunder nitrogen from air? 你能从空气中把氮气分离出来吗?