养分循环再利用
Use of recycled nutrients
Application of recycled nutrients
分批再循环培养
batch recycle culture
batch recycle cultivation
农田养分循环
Farmland nutrient balance
生物养分循环
Biological nutrient cycling
土壤养分循环
nutrient cycling
Soil nutrient cycling
soil nutrient circulation
土壤—作物系统养分循环
circulation of nutrients of soil-crop system
养分循环
Nutrient recycling
nutrient circle
nutrient cycling
Nutrient cycle
nutrition recycle
Nutrient cycli
Nutrients cycling
Nutrients cycle
Reddish paddy soil
nutrient-resorption proficiency
cycling
cricalation
养分循环利用
recycling of nutrients
Use of recycled nutrients
Nutrient cycling and utilization
Nutrient recycling and reutilization
养分循环平衡
nutrient cycling and balance
养分循环特征
Nutrient cycling characteristics
养分循环与平衡
nutrient cycling and balance
有机养分循环利用
cycling of organic nutrient
封闭式循环养殖系统
closed recirculating system
closed recirulating system
海水循环养殖系统
recirculating mariculture system
区域养分分配
Nutrients distribution in various zones
水分养分运移
dynamics of water and nutrient
土壤养分分布
soil nutrient distribution