分化、退化与形成
retrogression and formation
Differentiation
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
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
植物养分分配
plant nutrient allocation
总可消化养分
total digestible nutrients
total digestible nutrition TDN
TDN
总消化养分
total digestible nutrient
Tatal digestive nutrition
总消化养分校对值
correct total digestible nutrients