basic c nitrogen碱性氮
Volatile basic nitrogen挥发性盐基态氮;挥发性盐基氮
soil basic nitrogen supply基础供氮量
soil basic nitrogen supplying基础供氮量
basic and tillering nitrogen氮素基蘖肥
basic nitrogen extraction rate碱氮脱除率
soil basic nitrogen基础供氮量
non basic nitrogen非碱性氮
non-basic nitrogen非碱性氮