Specification :

NPK = Nitrogen, and Potassium Phospor
Is a compound fertilizer NPK ( in a few species fertilizers containing nutrients) required in growing plants.
Usability Buana Tjakra NPK fertilizer are:
N ( nitrogen) = required to stimulate vegetative growth
the plant prior to having a production
P ( phospor) = useful to stimulate the formation of flowers
and fruit
K ( potassium) = strengthen the roots of flowers and fruit