1.
Simulation of Soil Nitrogen Balance and Development of SISNDB Information System;
农田土壤氮素平衡动态模拟模型研制与SISNDB信息系统开发
2.
Soil Nitrogen Balance Simulation and Potential Enviromental Risk Assessment in Farmland Ecosystem at County Scale
县域农田生态系统土壤氮素平衡模拟及其潜在环境风险评价
3.
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
4.
Study on Time and Spatial Change of Nitrate Nitrogen of Cotton and Apparent Budget of Soil Nitrogen;
棉田土壤硝态氮实时变化规律及氮素平衡初步研究
5.
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
6.
Dynamic analysis of soil nitrogen factors of typical farmland in blacksoil region
黑土区典型县域农田土壤氮素动态分析
7.
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
8.
Research Progress on the Laws and Control Technologies of Nitrogen Loss in Farmland
农田土壤氮素流失规律及其控制技术研究进展
9.
Spatio-temporal Variability of Soil Water and Water Balance Analysis in Field;
农田土壤水分时空变异特征及水量平衡分析
10.
Spatial-Temporal Change of Phosphorus Balance and the Driving Factors for Agroecosystems in China
中国农田土壤磷平衡现状及驱动因子分析
11.
Changes of Soil Organic Carbon and Total Nitrogen of Croplands in China and the Net Carbon Effiency of Rice and Wheat Crops Determined by Nitrogen;
中国农田土壤碳氮变化及氮素对稻麦作物固碳效益的影响
12.
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
13.
Nitrogen Cycling and Balance in Winter Wheat-Summer Corn Rotation System under Optimized Nitrogen Management
优化施氮下冬小麦/夏玉米轮作农田氮素循环与平衡研究
14.
Study on the Paddy Nitrogen Balance under Different N and Water Coupling in Typical Red Soil Areas;
典型红壤地区不同水肥组合下稻田氮素平衡的研究
15.
Influencing Factors of Nitrogen Runoff Loss from Farmland Soil and Its Prevention Measures
农田土壤氮素径流损失的影响因素及其防治措施研究
16.
Soil respiration and carbon balance in farmland ecosystems on North China Plains
长期施肥对华北平原农田土壤呼吸及碳平衡的影响
17.
Nitrogen Cycling and Balance in Wheat-maize Rotation Field in Piedmont Plain of MT Taihang in the North China Plain;
华北太行山前平原冬小麦—夏玉米轮作农田氮素循环与平衡研究
18.
The Characteristics of Nitrous Oxide Fluxs from the Soils and Plants of Typical Crop Fields in North China Plain;
华北平原典型农田土壤及作物氧化亚氮通量特征