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applied nitrogen level 施氮量
The results showed that as nitrogen level increased the amylase activity enhanced, the nitratase activity enhanced. 结果表明，随着氮素水平的提高，淀粉酶活性有升高趋势，烟叶硝酸还原酶活性呈上升趋势。
The increase amount of residual nitrate N from third harvesting to fifth harvesting was 51.6% of the total amount of applied nitrogen during this period. 从第三季作物收获到第五季作物收获，残留硝态氮的增加量占这一时期氮肥施用量的比例高达51.;6%25。
Applying manure fertilizer or NPM, increasing legume crops in rotation were effective ways to improve nitrogen level in soil. 施用有机肥或氮磷有机肥配施、轮作中增加豆科作物（或牧草）能有效地调节改善土壤氮素状况。
Derivate spectra have the trend of shift to long wavelength direction and exist "two peak" phenomena at more significant increase of the nitrogen level. 一阶导数光谱随着施氮水平的增加，具有向长波方向移动的趋势，同时随施氮水平的增加，“双峰”现象则愈显著。
The nitrogen of applied different amounts has some effects on root yield, sugar content and sugar yield of sugar beet,the high root yield,sugar content and sugar yield were 35038kg/ha, 17.2% and 5073.0kg/ha respectively, when applied nitrogen 180 kg/ha. 氮素的不同用量对甜菜的块根产量、含糖率、产糖量均有一定影响。通过试验得出;当甜菜施氮量达到180kg/hm2时;甜菜块根产量、含糖率、产糖量最高;分别为35038.;5kg/hm2、17
Jimin Zhang , Masahiro Akimoto and Akio Hongo (2004) Effect of applied nitrogen and leaf density of orchardgrass (Dactylis glomerata) on the grazing behavior of sheep.Grassland Science 49 ,563-570. 张继敏，秋本正博，本江昭夫(2002)绵羊在采食不同的氮施肥量的牧草时采食行为的变化，北海道草地研究会报第36号，49（日文）。
No interphase precipitation was found. A detailed TEM/PEELS analysis of the fine particles showed that they are essentially nitrides (N/Metal?0.63-0.82) containing increasingly less carbon as the nitrogen level increased. 通过TEM/PEELS对细小颗粒的详细分析表明;这些粒子主要是氮化物(N/Metal?0.;63-0
In proper range of nitrogen level,the yield and biomass of Chinese Kale increased with the increasing of nitrogen level,but when nitrogen level(exceed) 1*N,the yield was not affected significantly with the increasing of nitrogen level. 结果表明:在一定施氮范围内,芥蓝单株经济产量和生物产量都随着施氮量的增加不断提高,当施氮水平达到1*N以上时,施氮量的增加对芥蓝产量无明显影响。
In the test , the critical point of nitrogen level causing the harvest index and efficiency of nitrogen of winter wheat and summer com to descend appears respectively as 225kg/hm2 and 150kg/hm2. 本试验中,使冬小麦和夏玉米氮收获指数和氮素效率出现下降的氮水平临界点分别为225kg/hm~2、150kg/hm~2。
Irrigation and applying nitrogen can increase the rate of dry matter and nutrient uptake. 增施氮肥和补充灌溉可提高干物质累积和养分吸收速率。
When the nitrogen level is N4(168mg/kg) , compared with N1 , increasing the accumulating amount of material 48% , chlorophyll content 68% ,Pro content 9% ,and depressing MDA content 32% of Lolium. 当施氮水平为N4(168mg/kg)时，与N1相比，提高了黑麦草于物质积累量48.;5%25，叶绿素含量67
After blossomming every time, should chase after apply nitrogen, phosphor, potash fertilizer. 每次开花完后，都要追施氮、磷、钾肥。
With the industrial data,this model could forecast the nitrogen content and the Ar blowing time required to control the nitrogen level of the stainless steel in AOD refining process. 模型可利用生产现场的实际操作数据预测钢中氮含量,并可预测冶炼过程中控制钢中氮含量所需要的吹氩时间。
Glutamine Synthetase (GS) activity in leaves increases with increasing nitrogen level, but in roots, GS activity drops rapidly at high nitrogen levels. 叶片谷氨酰胺合成酶(GS)活性随氮素营养的增加而提高，根系GS活性在氮素水平过高时反而下降。
Nitrogen protection: Apply nitrogen to detect the oxygen amount contained in the machine online ensuring the safe operation. 氮气保护系统:采用氮气保护以保证机器在安全的环境下运行。
Applied nitrogen and planting density 氮肥与密度
Zhang B J, Jiang J Y.Effect of applying nitrogen on grain protein in durum wheat and common wheat [J].Acta Agriculturae Boreali-Occidentalis Siniea, 1996, 5(2): 40-42. [5]张宝军;蒋继云.;施氮时期对硬粒小麦和普通小麦子粒蛋白质的影响[J]
Total inorganic nitrogen levels also went into significant decline after 2002, particularly in the eastern part of the Harbour. 此外,总无机氮水平在2002年开始也出现显著下降趋势,其中以海港东部水域的变化尤为显著。
The new comer applied his mind to the job. 新来的职员工作专心致志。