NPK fertilizers
type: Concept
broader: compound fertilizers
narrower: urea potassium pyrophosphate
preferred label: کودهای شیمیایی ان.پی.ک @fa

compound fertilizers
type: Concept
narrower: NPK fertilizers
preferred label: کودهای شیمیایی مرکب @fa

urea potassium pyrophosphate
type: Concept
broader: NPK fertilizers
preferred label: اوره پتاسیم پیروفسفات @fa