区域养分分配
Nutrients distribution in various zones
植物养分分配
plant nutrient allocation
水分养分运移
dynamics of water and nutrient
土壤养分分布
soil nutrient distribution
土壤养分分布图
soil nutrients distribution map
土壤养分分级
classification for soil nutrition
养分分布格局
nutrition distribution pattern
nutrients distribution pattern
养分分级
nutrient classification
classification for nutrient
养分分级指标
nutrient classification indexes
成分分配比
elemental partitioning ratio
定时分配分时法
time sharing time-quantum method