1.
Relationship between soil nitrate,nitrogen balance and utilization in rainfed land
旱地土壤硝态氮与氮素平衡、氮肥利用的关系
2.
Influences of Cropping System on Soil Nitrate Nitrogen and Tobacco Nitride
种植制度对土壤硝态氮及烟叶氮化物的影响
3.
Nitrate-N Leaching in 23-Year Winter Wheat Field Combined with Application of Nitrogen and Phosphorus
小麦氮磷肥长期配施对土壤硝态氮淋溶的影响
4.
Study of Nitrogen Fertilization on Summer Maize Based on Soil Nitrate Nitrogen Test
基于土壤硝态氮测试的夏玉米氮肥施用研究
5.
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
6.
Effects of nitrogen fertilization on nitrate content of radish(Raphanus sativus L.) and soil nitrate leaching
施氮量对白萝卜硝酸盐含量和土壤硝态氮淋溶的影响
7.
Effects of Nitrogen Fertilizer Regulation on Vegetables Nitrogen Utilization and Soil Nitrate-N Residue
氮肥调控对蔬菜氮素利用及土壤硝态氮残留的影响研究
8.
Effect of Different Nitrogen Rates on Nitrogen Utilization and Residual Soil Nitrate of Spring Maize
不同施氮水平对春玉米氮素利用及土壤硝态氮残留的影响
9.
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
10.
Effects of irrigation and nitrogen interaction on soil NO_3~- -N transport,nitrogen use efficiency and water use efficiency in wheat
水氮互作对小麦土壤硝态氮运移及水、氮利用效率的影响
11.
Effects of nitrogen fertilization and irrigation rate on grain yield,nitrate accumulation and nitrogen balance on sandy farmland in the marginal oasis in the middle of Heihe River basin
水氮配合对绿洲沙地农田玉米产量、土壤硝态氮和氮平衡的影响
12.
Effects of nitrogen rate on nitrogen uptake and utilization of winter wheat and residual nitrate in soil under straw mulch
秸秆覆盖条件下不同施氮水平冬小麦氮素吸收及土壤硝态氮残留
13.
Effects of straw mulching and nitrogen fertilizer application on nitrogen use in summer maize and soil nitrate content
秸秆还田配施氮肥对夏玉米氮利用及土壤硝态氮的影响
14.
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
15.
Study on the Fate of Nitrate Nitrogen in Greenhouse Cultivated Condition;
温室栽培条件对土壤硝态氮行为影响研究
16.
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
17.
Study on the Technology of Soil Nitrate Nitrogen Leaching Preventive and Control in Mushroom House
设施菜地土壤硝态氮淋溶防控技术的研究
18.
Effect of Organic Manure on Vertical Distribution of NO_3~--N in Protected Cultivation Soil Depth Profile
有机肥对设施菜地土壤硝态氮垂直运移的影响