1.
Horizontal Distribution Characteristics of Soil Nitrogen in Jujube-crop Intercropping Ecosystem
枣粮间作生态系统土壤氮素水平分布特性研究
2.
Study on Simulation Model of the Relationship between Growth Development and Soil Nitrogen Level in Peanut;
花生生长动态与土壤氮素水平的关系及模拟模型研究
3.
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
4.
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
5.
Study on Nitrogen Transformation of Various Fertilities Soil in Greenhouse
不同肥力水平大棚土壤氮素转化的研究
6.
Effect of Water Saving and Nitrogen Controlling on Nitrogrn Balance and No_3~--N Leaching of Different Soil-Vegetable Systems Ningxia;
节水控氮对宁夏不同土壤—蔬菜体系中氮素平衡及NO_3~--N淋失的影响
7.
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
8.
Effects of Urea Application on Soil Nitrogen and Turf grass Growth in Mixed Cool Season Lawn
不同尿素施肥水平对北方混播草坪中土壤各形态氮的影响
9.
Hierarchical Bayesian model for predicting the soil nitrogen of forest
多水平贝叶斯模型预测森林土壤全氮
10.
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
11.
Study on Spectral Feature of Soil Water and Rice Nitrogen Status;
土壤水分与水稻氮素状况光谱特征研究
12.
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
13.
Effects of nitrogen application rates on grain yield,soil organic carbon and nitrogen under a rainfed cropping system in the loess tablelands of China
施氮水平对黄土旱塬区小麦产量和土壤有机碳、氮的影响
14.
Effects of N and P Application on Available Nutrients and Water Soluble Salt Ions in the Greenhouse Soil
施用不同水平氮、钾素对温室土壤有效养分及水溶性盐分离子的影响
15.
Simulation of Soil Water and Nitrogen Behavior and Analysis of Agricultural Management in Huang-Huai-Hai Plain;
黄淮海平原农田土壤水氮行为模拟与管理分析
16.
Study on Sources of Organic Nitrogen in Chinese Milk Vetch on Red Paddy Soil
红壤性水稻土紫云英有机氮素形成特征的研究
17.
Effects of Nitrogen Levels and Soil Moisture during Grain Filling on Grain Quality of Rice;
氮素和结实期土壤水分对稻米品质的影响
18.
Effects of SAP Application on Nitrogen Eluviations and the Urease Activity of Soil
保水剂对土壤氮素淋溶及脲酶活性的影响