1)Nitrate accumulation硝态氮累积
1.The cause of nitrate accumulation in leafy vegetables;叶类蔬菜的硝态氮累积及成因研究
2.Effect of fertilization on fertility and nitrate accumulation of black loessial soil of dry land in Loess Plateau施肥对黄土旱塬区黑垆土土壤肥力及硝态氮累积的影响
3.Soil nitrate accumulation in North China has been reported by many researchers.土壤0-400 cm硝态氮累积含量顺序是:苹果园>高产粮田>裸地>刺槐林地>荒草地>人工草地。
英文短句/例句
1.The Physiological Mechanism Research of Nitrate Accumulation Difference in Different Spinach Variety;不同菠菜品种硝态氮累积差异的生理机制研究
2.Nitrate Accumulation in Rapeseed Seedlings and Its Relation to Plant Growth and Seedyield and Quality苗期硝态氮累积与油菜生长、产量及品质的关系
3.Effect of New Type Fertilizers Application on Accumulation of Soil Nitrate Nitrogen in the Maize Season新型肥料施用对玉米季土壤硝态氮累积的影响
4.Effects of Models of N Application on Greenhouse Tomato N Uptake,Utilization and Soil NO_3~--N Accumulation施氮模式对番茄氮素吸收利用及土壤硝态氮累积的影响
5.Effects of nitrogen fertilizer application and irrigationlevel on soil nitrate nitrogen accumulation and water and nitrogen use efficiency for wheat/maize intercropping水氮量对小麦/玉米间作土壤硝态氮累积和水氮利用效率的影响
6.Effects of Different Nitrogen Fertilization Levels on Yield of Cucumber,the Soil Nitrate-N Accumulation and the Soil Solution Nitrate-N Concentrations不同氮肥水平对黄瓜产量、土壤硝态氮累积及土壤水溶液硝态氮含量的影响
7.Effects of Continously Applying Nitrogen on Soil Nitrate Accumulation in Rain-fed Agriculture Region of Mid Loess Plateau;连续施氮对黄土高原中部雨养农业区土壤硝态氮累积的影响
8.Effects of Different Molybdenum and Nitrogen Application Rate and Osmotic Adjustment Substances on the Growth and the Accumulation and Utilization of Nitrate of Oilseed Rape钼氮和渗透调节物质富集对油菜生长及硝态氮累积利用的影响
9.Effects of P fertilizer application on yield of spring wheat and characteristics of N absorption and NO_3~--N accumulation in soil profile施用磷肥对春小麦产量与吸氮特性及土体中硝态氮累积的影响
10.Effects of Nitrogen Application on Nitrate Nitrogen Accumulation and Forage Yield of Sorghum bicolor×S. sudanense施氮对杂交苏丹草植株硝态氮累积及产量的影响
11.Nitrate Uptake, Efflux, Reduction and Transformation, and Their Relationships to Petiole Nitrate Accumulation over Leafy Vegetable Cultivars叶菜硝态氮吸收、溢泌及还原转化与品种间叶柄硝态氮累积差异的关系
12.On the nitrate-N accumulated characteristics in deep soil layer of winter wheat field in Taihang Piedmont.太行山山前平原冬小麦田深层土体硝态氮累积特征研究
13.Nutritional and Physiological Basis of the Difference of Nitrate Accumulation in Petiole of Spinach Cultivars;菠菜品种间叶柄硝态氮累积差异的营养生理基础
14.The Accumulation of Nitrate Nitrogen in Soil Profiles in the Semiarid and Semi Humid Area;半干旱半湿润地区土壤剖面中硝态氮累积的研究
15.Effect of Different Factors on Accumulation and Leaching of Nitrate in Greenhouse Soil;日光温室土壤硝态氮累积淋溶特性及其影响因素研究
16.Nitrite Accumulation During the Denitration Process in SBR at Low Temperature低温SBR反硝化过程亚硝态氮积累试验研究
17.Nitrite Accumulation and Influential Factors of in Soil Nitrogen during Nitrification Process土壤氮素硝化过程中亚硝态氮的累积及其影响因素研究
18.The Study on Determination Method and Cumulative Factors of Nitrate and Nitrite in Vegetables;蔬菜中硝态氮测定方法及累积因素的研究
相关短句/例句
nitrate-nitrogen accumulation硝态氮累积
1.The status quo of nitrate-nitrogen accumulation in vegetables under protected cultivation in Guanzhong Borough of Shaanxi Province was investigated.调查了陕西关中主要蔬菜产区设施栽培蔬菜的硝态氮累积现状,以期探讨传统习惯施肥方法对蔬菜硝态氮累积的影响。
3)NO3-N accumulation硝态氮累积
1.Experiment was carried out in the apple orchards located in Weibei area,the concentrated apple producing area of Shaanxi province for studying the NO3-N accumulation and distribution in the soil.为进一步研究果园土壤硝态氮的累积及分布情况,在陕西渭北主要苹果产区分别采集了0～120cm土壤剖面样品,测定了土壤硝态氮含量,分析了不同因素对果园土壤硝态氮累积的影响。
2.The question of NO3-N accumulation should be .大量施用氮肥在土壤剖面140cm处形成明显的硝态氮累积峰。
4)Accumulated nitrate-N累积硝态氮
5)accumulation rate of nitrite亚硝态氮累积率
6)NO~-_3-N accumulation硝态氮积累量
延伸阅读
硝态氮分子式：CAS号：性质：以硝酸根离子NO3—形态存在于土壤、植物和肥料中的氮素。常用符号NO3——N表示。硝酸钠、硝酸钙、硝酸铵(除含硝态氮外，还含有铵态氮，因其性质更接近硝态氮肥，故归入之)都属于硝态氮肥。淹水的水稻田中硝态氮含量很少，而在温带旱作土壤中硝态氮常有积累。它是植物直接吸收利用的速效性氮素。土壤中硝态氮含量随季节和植物的不同生育期而变。土壤硝态氮不被土壤吸附，雨季易淋失，水田中还可因反硝化作用而损失。植物中的硝态氮是植物体内主要的无机态氮，在一定范围内植物中的硝态氮含量可反映当时土壤供氮状况和植物体内氮素营养水平。但水稻体内所含硝态氮极少，不能作为氮素营养水平和诊断指标。植物组织液中硝态氮的含量(以N计)约为100～1000mg/kg。硝态氮是水质监测的重要项目之一。有些国家已将含氮订入了湖沼水质的标准。
