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- different N concentration 不同氮浓度
- At the same time, the screening cultivars and densities, and testing the effect of different N, P, K ratios were conducted. 同时进行了品种和密度筛选和不同氮、磷、钾配比效果试验。
- Soil NO3--N concentration and accumulation of intercropped faba bean were lower than that of solecropped faba bean at three nitrogen rate. 在3个氮水平下,蚕豆间作土壤硝态氮含量和累积量都低于单作。
- There are notable differences of N concentration ,P concentration ,C:N ratio and C:P ratio between leaves on the surface and those 5cm below the surface . 林型和时间对N浓度、P浓度、C/N比、C/P比变化趋势产生影响。 同一种林型内地表和地下5厘米处叶片对N浓度、P浓度、C/N比、C/P比变化趋势也会产生影响。
- Eight Dutch surface soils were used in this study to analyse different N fractions in 0.01 molL~(-1) CaCl_2 extracts and percolates at different temperatures. 本文用荷兰8种表土测试不同温度下0.;01molL~(-1)CaCl_2提取液和淋滤液中N素各形态。
- A hydroponic experiment was conducted to investigate the effect of different N levels on the growth and anti-cancer glucosinolates content of Chinese kale (Brassica alboglabra). 采用溶液培养方法,研究了不同供氮水平对芥蓝生物量及抗癌次生代谢物芥子油苷含量的影响。
- Tong Y A,Zhang W X,Han W S,Deng J L.Transformation of different N fertilizer in Manural loessial soil and Huangmian soil[J].Chinese Journal of Soil Science.1994,25(3):107-108. [9]同延安;张文孝;韩稳社;邓金兰.;不同氮肥种类在()土及黄绵土中的转化[J]
- Chun L,Chen F J,Zhang F S,Mi G H.Root growth,nitrogen uptake and yield formation of hybrid maize with different N efficiency[J].Plant Nutr.Fert.Sci.,2005,11(5):615-619. [6]春亮;陈范骏;张福锁;米国华.;不同氮效率玉米杂交种的根系生长、氮素吸收与产量形成[J]
- Abstract : The experiment used a perlite and drip-irrigation system to compared the effects of arbuscular mycorrhizal fungi on maize under different N and P supply levels. 摘要 : 以珍珠岩为培养基质的半液培实验比较研究了不同氮磷水平营养液对接种丛枝菌根真菌玉米的影响。
- Apparent difference of CND among all Ntreatments showed before early grain filling stages in Jingdong8, but post-anthesis in Zhongyou9507.There appeared apparent vertical gradients of both leaf N concentration and CND in canopy. 叶片含氮量与籽粒品质指标的相关程度高于茎鞘含氮量,京冬8开花期叶片含氮量与蛋白质含量的相关性最高,9507则灌浆盛期最高。
- This paper probes into the NH 4 + N, NO 3 - N concentration dynamics on DMPP (3,4 dimethylpyrazole phosphate) in vegetable soils under fertilized condition with aerobic cultivation. 为进一步完善蔬菜硝酸盐污染的调控技术体系 ;采用好气培养法研究了新型硝化抑制剂 3;4 -二甲基吡唑磷酸盐 ( DMPP)对菜园土壤 NH4 +- N;NO3- - N含量的影响 .
- The differences of ash content among the treatments with different N application methods were not significant at early stage, but became more and more significant after 14th DAA. 不同的氮肥运筹下,在籽粒的形成期前后差异不大,在花后14天以后差异较大,后期追氮高的处理灰分下降的幅度大于后期追氮低处理。
- It was found that different n(-NCO)/n(-OH) ratios and different diisocyanate structures have a great effect on the melt index, the microphase morphology structure and physical property of TPUE. 结果表明,n(-NCO)/n(-OH)和异氰酸酯结构对热塑性聚氨酯弹性体的熔融指数、微相形态结构和物理机械性能有较大的影响。
- Field experiment was carried out to investigate the yield advantage of intercropped wheat and faba bean, and on nitrate accumulation in soil profile at different N application rates. 摘要 通过田间小区试验,研究了小麦/蚕豆间作条件下作物的产量优势及不同施氮水平和种植方式中土壤硝酸盐累积。
- Field experiment was carried out to investigate the yield advantage of intercropped wheat and faba bean,and on nitrate accumulation in soil profile at different N application rates. 摘要 通过田间小区试验,研究了小麦/蚕豆间作条件下作物的产量优势及不同施氮水平和种植方式中土壤硝酸盐累积。
- Soil NO3-- N concentrations responded N addition in all studied forests and were significantly increased in pine and monsoon evergreen forests. 外加氮处理提高土壤硝态氮水平,其中在马尾松林和阔叶林氮处理效应显著。
- Reading and writing are different skills. 阅读与写作是不同的技能。
- Hydroponic experiments were conducted to study nitrogen (N) uptake of eight rice cultivars under three N concentrations (1, 2 and 4 mmol/L, respectively). 摘要采用溶液培养方法研究了不同水稻品种获取氮能力的差异及其原因。
- Chapter n concentrates on Eileen Chang"s so-called philosophy of ordinary life in her works, showing how she rejects any transcendental ideals and values. 第二章以张爱玲作品中隐含的日常生活哲学为焦点,展示她如何拒斥理想主义和超验价值。
- The effect of N on nodule development of soybean occurs at much lower concentrations than previously reported probably due to the maintenance of constant N concentrations. 氮对大豆根瘤发育影响的最低浓度比过去报告的更低,这可能是由于试验时维持了不变的氮浓度的缘故。