研究了不同密度和施肥水平下的水稻氮素吸收和积累的规律。
The principles of assimilation and accumulation of nitrogen element based on different fertilization levels and planting densities was researched.
杂草的伴生会使作物的氮素吸收能力增强，但向籽粒的转移会减弱。
Weed lived with crop together could improve absorbing nitrogen ability of crop, while the ability for crop of transferring nitrogen to seeds would decrease.
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。
Based on the results of correlation analysis, nitrogen absorption efficiency contributed more to the nitrogen efficiency than nitrogen utilization efficiency.
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 effects of planting density and nitrogen application rate on nitrogen absorption and utilization by rice were studied with Wuxiangjing 9(Japonica variety).
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 effects of different fertilization stage on wheat yield, nitrogen uptake, utilization, residue, distribution and nitrogen balance were studied by potted plant experiment.
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。
Pot experiments were conducted to investigate the nitrogen uptake and utilization and biomass yield in soybean and maize intercropping or mono culture system.
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。
Effects of fertilizer application on nitrogen utilization efficiency and nitrate content in hybrid Pennisetum was studied in Nanjing, Jiangsu province.
通过温室培养试验，研究了不同生长期缺水和补充灌水对冬小麦氮素吸收利用和土壤残留的影响。
Supplemental irrigation at over-wintering, jointing or filling stage significantly increased the nitrogen uptake by plant and decreased the nitrogen residual 47.
在膜下滴灌条件下，进行了不同氮肥滴灌施肥方式和土壤盐度对棉花生长和氮素吸收影响的田间试验。
It is of great importance to study the growth and nitrogen(N) uptaking by cotton for optimizing soil salinity, irrigation and fertilization strategies with drip irrigation under film.
认为选择开花后氮素吸收同化和再运转能力强的品种，既有利于提高籽粒产量，又可提高籽粒蛋白质含量。
Using the cultivar with stronger ability of absorbing, assimilating and translocation nitrogen can not only improve kernel yield, but kernel protein content.
以具有典型特征的不同氮效率小麦品种为材料，研究丰、缺氮条件下的籽粒产量、氮效率、氮素吸收特性和氮素吸收同化关键酶活性。
Yield, nitrogen efficiency, characterization of nitrogen uptake and key enzyme activity of nitrogen assimilation were studied in wheat varieties with different nitrogen efficiencies.
不同施氮措施条件下，对保护地黄瓜生育期内氮素吸收利用效率、氮素淋洗损失进行了研究，同时也研究了不同处理对黄瓜产量及品质的影响。
Effects of applying different nitrogen fertilizer on yield, quality and nitrate leaching in soil layer were studied during the cucumber growth period in greenhouse.
超高产夏玉米吐丝后氮素吸收积累量占总积累量的40.30%-47.78%，保证后期氮素养分充足供应对于夏玉米达到超高产水平至关重要；
The N absorption proportion after silking stage was 40.30%-47.78% of the total, so it was important to provide maize plants with sufficient N in later growth stage for realizing super-high-yield.
这些结果说明外源NADP_GDH增强了植物对氮素的吸收和利用。
These results suggested that exogenous NADP_GDH may enhance the absorption and utilization to ammonium in plants.
本论文第二部分主要研究了四种不同精粗比典型日粮条件下泌乳奶牛瘤胃氮素代谢、小肠蛋白质的消化吸收及其对生产性能的影响。
The second part was mainly conducted to study the effects of four typical diets on rumen nitrogen metabolism, protein digestion and absorption in the small intestine, and dairy cow's milk performance.
硝酸盐的吸收和氮素代谢相关酶的共同作用可以调控贮藏蛋白质的积累与降解。
The accumulation and degradation of protein can be affected by the multi-action of nitrate absorbing and the enzyme which related with N metabolism directly.
甜椒对不同形态氮素的吸收利用有显著差异。
The absorption and utilization of different form of nitrogen in sweet pepper were studied.
以粳稻武育粳3号为材料，研究了大田条件下不同氮素水平和土壤水分对水稻养分吸收及稻米品质的影响。
Nutrient absorption and quality of rice on Wuyujing 3 were investigated by different nitrogen levels and irrigation methods on field.
随着营养液中氮素形态比例的不同，作物吸收的氮素营养亦会发生明显改变。
The nitrogen nutrition absorbed by rice change apparently with different proportion of different nitrogen form in the water culture.
糯玉米籽粒的氮素中，来自前期营养体的转移为51.25%，后期根系的吸收为48.75%。
Nitrogen sources in grain of wax com were 51.25% come from vegetative organ, while 48.75% come from root uptake.
但是对于水分胁迫条件下，氮素形式与水分吸收之间相关联的过程还不清楚。
However, the process by which water uptake is related to nitrogen form under water stress remains unknown.
结果表明，麦棉套作条件下，小麦对肥料氮的吸收和利用率显著提高，且所吸收的氮素较多地分配到籽粒中。
The results showed that the efficiency of fertilizer N used by wheat increased and a higher percentage of N absorbed was translocated into grain under the interplanting condition.
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。
On the contrary, N utilization and absorption by cotton decreased. At harvest, a higher percentage of nitrogen remained in vegetative organs.
结果表明：15N-尿素在西洋参各器官均有分布，参株从肥料中吸收氮素（NDFF％）含量地上部各器官高于地下部。
The results showed that 15N (15N-urea) was distributed to all organs of Panax quinquefolium Linne. NDFF% in above-ground part was higher than that in below-ground part.
研究在氮素供应水平对露地胡萝卜的产量、养分吸收和氮素利用的影响。
Effect of nitrogen application on content and accumulation of grain protein components of winter wheat;
研究在氮素供应水平对露地胡萝卜的产量、养分吸收和氮素利用的影响。
Effect of nitrogen application on content and accumulation of grain protein components of winter wheat;
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