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.
Effects of Water and Fertilizer on Nitrogen Use Effeciency and Balance in Lowland Rice Field
水肥交互作用对稻田氮素利用率和氮素平衡的影响
3.
Environmental effect and balance of nitrogen in paddy fields in the Taihu Lake region;
太湖地区稻田氮素平衡及其环境效应的研究
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.
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
6.
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
7.
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
8.
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
9.
Study on soil nitrogen balance of spring maize continuous cropping in semi-arid area of Jilin Province
吉林省半干旱地区春玉米连作体系氮素平衡研究
10.
Effect of Different Integrate Agronomic Measures on Nitrogen Balance and Loss of Red Soil on Sloping Farmland in Yunnan
不同农艺措施组合对云南红壤坡耕地氮素平衡和流失的影响
11.
Surface nitrogen balance and analysis of spatial characteristics of farmland in Tongzhou District,Beijing
北京市通州区农田表观氮素平衡及空间特征分析
12.
Balance Control of Restrictive Factors For Nitrogen and Phosphorus Removal in CASS Abstact
关于CASS池中脱氮除磷制约因素平衡控制的综述
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.
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
15.
Nitrogen Cycling and Balance in the Farmer Household s Agro-Animal Husbandry Ecosystem of Yaozhou Region, Shaanxi Province;
陕西省耀州农户肉羊农牧生态系统氮素循环与平衡研究
16.
Nitrogen Cycling and Balance in "Agriculture-Livestock-Nutrition-Environment" System of China;
我国“农田—畜牧—营养—环境”体系氮素养分循环与平衡
17.
Nitrogen Utilization and Balance of Raphanus sativus L.Production System in Greenhouse
日光温室白萝卜生产系统的氮素利用与平衡研究
18.
NITROGEN CYCLING AND BALANCE IN WINTER-WHEAT-SUMMER-MAIZE ROTATION SYSTEM IN NORTHERN CHINA PLAIN
华北地区冬小麦-夏玉米轮作体系的氮素循环与平衡