soil amendments
preferred label: اصلاح خاک @fa
type: Concept
narrower: soil acidulants

soil acidulants
alternative label: acidulants, soil
related: acidulation
broader: soil amendments
preferred label: اسیدی‌کننده خاک @fa
type: Concept

acidulation
preferred label: اسیدی‌شدن(کردن) @fa
type: Concept
related: soil acidulants