1、

water and nitrogen distribution under subsurface drip fertigation as affected by layered-textural soils

层状土壤质地对地下滴灌水氮分布的影响

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2、

field experiment on water and nitrogen distribution for winter wheat under border strip fertigation

冬小麦不同畦灌施肥模式水氮分布田间试验

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3、

Nitrogen distribution during thermal conversion of vacuum residue

减压渣油热转化前后的氮分布

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4、

Law of active species ( N+, N f) energy distribution with discharge temperature changing at cathode well of nitrogen glow discharge is studied.

采用蒙特卡罗方法,模拟研究了氮直流辉光放电电子碰撞、离解和N+2电荷交换离解过程,产生的活性粒子(N+,Nf)轰击阴极壁的能量分布随放电气体温度的变化规律。

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5、

Absorption and distribution of nitrogen, phosphorus and potassium in taro

芋对氮磷钾吸收分配规律的研究

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7、

In this paper, the structure, phase constituents and distribution of nitrogen in carbon and low alloy steels after compound treatment of soft nitriding and through hardening have been discussed.

本文研究了碳钢和低合金钢气体软氮化后进行整体淬火复合处理工艺时组织,相组成和氨浓度分布的规律。

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8、

Model prediction of nitrogen and sulphur distribution in coal's pyrolysis products

煤热解产物中氮、硫分布的模型预测

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9、

A study on absorption utilization and distribution of different sources of nitrogen in Tabacco

烟草对不同来源氮素的吸收、利用、分配的研究

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10、

The absorption, utilization and distribution of different sources of nitrogen in tabacco with isotope tracer were studied.

本文根据~(15)N示踪技术对烟草吸收不同来源氮素后分配利用的研究,分析了烟草氮素营养的特征。

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11、

The results are described as follows: 1. The study suggests that the distribution characteristics and existing forms of nitrogen phosphorus in the overlying water and sediments of Hulun lake, indicating the phosphorus is a limited factor in eutrophication. 2.

本研究取得了如下主要认识:1.确定了呼伦湖上覆水-沉积物系统中氮、磷空间分布特征及赋存形态,并初步判定了该湖富营养化的限制因子。

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12、

Nitrogen uptake, distribution by rice and its losses from plant tissues during

水稻对氮素的吸收、分配及其在组织中的挥发损失

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13、

Research on the Leakage and Distribution in Soil of Nitrogen in the Condition of Waterlogged Rice Growth

淹水种植水稻条件下氮元素的渗漏及在土壤中的垂直分布

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15、

The distribution of soil nitrogen in farmland was studied by the method of random sampling.

采用田间随机抽样法研究了麦田氮素的空间分布规律。

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16、
18、

distribution of microorganisms related to nitrogen transfer and denitrification ability of the malan loess

马兰黄土中与三氮有关的微生物的分布及其反硝化能力

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19、

Absorption and distribution of different form of nitrogen in sweet pepper

甜椒对不同形态氮素的吸收和分配

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20、

Effect CF various light intensities on nitrogen fixation and sugar distribution of broad bean

不同光强对蚕豆固氮和糖分布的影响

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