1.
Material Balance of N and P of Mixed Culture Ecosystem in Seawater Pond
海水围塘混合养殖生态系统氮磷平衡的研究
2.
Analysis on Mass Balance of Carbon,Nitrogen and Phosphorus in A~2/O Process
A~2/O系统中碳、氮、磷的物料平衡分析
3.
The nutrient balance of N P K in aquent of Hebei alluvial plain and their evaluation
河北低平原潮土氮磷钾平衡状况及评价研究
4.
Effects of N,P,K balanced application on economical yield and quality of scallion
氮磷钾平衡施用对大葱产量和品质的影响研究
5.
Fertilizer-Liking Grade of Maize and Its Balanced Control for NPK;
玉米喜肥等级及其氮磷钾平衡调控技术研究
6.
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
7.
Effect of Different Proportion Nitrogen,Phosphorus and Potassium Fertilizers on Chewing Cane Yield and Quality
氮磷钾肥平衡施用对果蔗产质量的影响
8.
Nitrogen,phosphorus and potassium cycling and balance in farmland ecosystem at the piedmont of Taihang
华北太行山前平原农田生态系统中氮、磷、钾循环与平衡研究
9.
Studies on the Nitrogen Phosphorous Potassium Nutrition Balance Case of Albic Rice Soils;
三江平原白浆土型水稻土氮磷钾养分平衡的研究
10.
Effect of Amino Acid Balance and Exogenous Enzymes on Emissions of Nitrogen and Phosphorus of Allogyogenetics Silver Crucian Carp
饵料中氨基酸平衡和外源酶对异育银鲫氮磷排放的影响
11.
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
12.
Effects of Different Controlled-Release Fertilizers and Nitrogen Level on N,P,K Use Efficiency
控释肥类型及氮素水平对氮磷钾利用率的影响
13.
Effect of N Rates on Yield of Spring Wheat,Fertilizer N Recovery and N Balance
不同供氮水平对春小麦产量、氮肥利用率及氮平衡的影响
14.
Movement and Transform of Phosphorus in High Yield Field and Phosphorus Balance;
高产粮田磷素的迁移转化及磷素平衡研究
15.
Study on the Utilization of Water and Nitrogen and the N-Fertilizer Balance under Water Saving Irrigation;
节水灌溉水稻水氮利用与肥料氮量平衡研究
16.
EQUILIBRATION AND OPTIMIZATION OF N_2 IN SHELL PULVERIZED COAL GASIFIER
Shell粉煤气化装置的氮气平衡及优化
17.
Practice and Experience on Under-balanced Drilling with Nitrogen-foam
DF1井氮气泡沫欠平衡钻井实践与认识
18.
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