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。
The nitrogen utilization efficiency were downtrend with the amount of topdressing increased.
随着施氮量增加，追施氮肥的利用率明显下降。
Increased expression of this or substantially similar genes can produce plants with improved nitrogen utilization and increased yield.
该基因或基本类似的基因提高的表达能够产生下述植物，其具有改进的氮利用和提高的产量。
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。
Based on the results of correlation analysis, nitrogen absorption efficiency contributed more to the nitrogen efficiency than nitrogen utilization efficiency.
相关性分析可知，氮素吸收效率对氮素效率的贡献大于氮素利用效率。
It is thus evident that the genetic models of nitrogen concentrations and nitrogen utilization efficiency of wheat in different water and nitrogen environments were different.
可见，小麦氮素含量和氮素利用效率的遗传模型在不同的水氮环境中不完全一样。
Based on the potentials of nitrogen utilization and the state of material flow, measures for raising nitrogen conversion efficiency and enhancing whole system's stability were put forward.
根据整个系统在氮素利用上的潜力和物流状况，本文提出了提高系统氮素利用效率和增强系统稳定性的途径与措施。
Pot experiments were conducted to investigate the nitrogen uptake and utilization and biomass yield in soybean and maize intercropping or mono culture system.
通过盆栽试验，研究玉米、大豆间作及相应单作不同时期氮素吸收利用及生物学产量的差异。
The effects of different fertilization stage on wheat yield, nitrogen uptake, utilization, residue, distribution and nitrogen balance were studied by potted plant experiment.
分析了不同施肥时期对砂质潮土小麦产量、氮素吸收与利用、土壤残留与氮素损失的影响。
The study on absorption and utilization of organic nitrogen on spring wheat has been done by 15N trace method The.
应用15N示踪法探讨了春小麦对有机氮的吸收利用问题。
Regulation and the mechanisms of nitrogen form on water utilization of maize under fixed partial root-zone water stress conditions were investigated.
通过研究固定根区水分胁迫下氮形态对玉米水分利用的调节与作用机制，为局部根区灌溉水氮高效利用提供理论依据。
B reaction, inorganic nitrogen sources utilization and citrate utilization, the results were positive. Nitrate reduction experiment presented positive largely.
反应、无机N源利用、柠檬酸盐利用呈阳性，硝酸盐还原试验大多呈阳性；
Excreta collection techniques in nitrogen(N)balance trail developed from the techniques for ducks were used to study the net protein utilization of goose.
本文借鉴鸭排泄物收集方法对肉鹅的蛋白质净利用率进行初步研究。
So choosing and breeding maize variety of highly nitrogen fertilizer utilization rate based on different maize genotype is a positive and efficient measure to the problem.
针对这一情况，一种积极有效的措施就是根据玉米基因型存在差异而选育氮高效玉米品种。
The effects of planting density and nitrogen application rate on nitrogen absorption and utilization by rice were studied with Wuxiangjing 9(Japonica variety).
以迟熟中粳稻武香粳9号为材料，研究了基本苗和施氮量对水稻氮素吸收与利用的影响。
The growth and utilization of nitrogen, phosphorus of Chlorella ellipsoidea L1 strain were studied under autotrophic and heterotrophic conditions.
研究了自养与异养条件下小球藻对富营养化水体中氮、磷的利用及藻体的生长。
On the contrary, N utilization and absorption by cotton decreased. At harvest, a higher percentage of nitrogen remained in vegetative organs.
与此相反，棉花所吸收的氮量和肥料氮利用率均比纯作春棉降低，收获期有较多的氮素滞留于营养器官和铃壳中。
The utilization of wort by yeast growing well in poor nitrogen medium during fermentation was studied. And the characterization of the strain was investigated.
研究了贫氮酵母在发酵过程中对麦汁各组成成份的利用情况及其生理特性。
Efficient genotypes and reasonable nitrogen fertilizer management are effective measures to increase nitrogen uptake and utilization efficiency in rice.
选用氮素高效基因型和合理的氮肥调控是目前提高水稻氮素利用效率的有效途径。
The absorption and utilization of different form of nitrogen in sweet pepper were studied.
甜椒对不同形态氮素的吸收利用有显著差异。
The result indicated that the Al - Mn- Fe alloy deoxidant can increase utilization ration of aluminum, decrease content of oxygen and nitrogen and inclusion in the steel.
铝锰铁复合脱氧剂脱氧与铝铁脱氧比较，可提高铝的利用率，降低钢中氧、氮气体及夹杂物含量，有利于减少连铸水口堵塞，提高钢液的纯净度。
The experimental results show that the utilization rate of total nitrogen could reach 70%.
酱油的全氮利用率可达70 % ，氨基酸生成率达50 %以上。
The comprehensive utilization method includes: (1) recovering heat carrier of high-temperature heat byproduct (such as hot nitrogen or steam) of the sintered mineral;
本发明提供 的综合利用方法为：（1）回收烧结矿物的高温热副产热载体（如热氮气或蒸汽）；
In certain scale, as the rates of nitrogen dressing increased, the utilization rate of nitrogen fertilizer was higher.
随追氮比例的增加，烟株对氮肥的利用率明显增大。
Biological tests show that both fertilizers are helpful to improve lawn quality, reduce nitrate nitrogen leaching loss and raise fertilizers utilization rate.
生物试验表明：两种肥料有利于草坪质量的提高，减少土壤中硝态氮的淋失，提高肥料的利用率。
The interaction between SAP and nitrogen fertilizer had effect on the physiological properties of maize in seeding stage, nutrient absorption and water utilization efficiency.
保水剂与氮肥交互作用对玉米苗期生理特性、养分吸收及水分利用效率有一定的影响。
These results indicated that the nitrogen and sugar contents in diets influence their absorption and utilization by the larvae, and sugar is more important than nitrogen for older larvae.
这些结果说明饲料中氮含量影响幼虫对糖的吸收，高龄幼虫对糖的需要量增加而对氮的需要则较稳定，饲料中糖比氮更重要。
Therefore, nitrogen synergists could improve urea utilization rate.
同时可以看出氮肥增效剂能提高尿素利用率。
A field experiment was conducted to study the effects of 4 compound nitrogen fertilizer synergists on the growth and yield of maize and urea-N utilization by it.
在大田小区试验条件下，研究了复合氮肥增效剂对玉米生长、产量和尿素氮利用的影响。
A field experiment was conducted to study the effects of 4 compound nitrogen fertilizer synergists on the growth and yield of maize and urea-N utilization by it.
在大田小区试验条件下，研究了复合氮肥增效剂对玉米生长、产量和尿素氮利用的影响。
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