... .15STANDARD APPLICATIONS: MKP, as a high efficient and purity compound fertilizer, has high nutritional ingredient (P,K effective ingredient >90%), also ... . Mainly used as high concentrations of high phosphorus and potassium fertilizer and high-quality chlorine-free potash in agriculture, which shows ... our website for more details. Fertilen Brand Plant Grade Monopotassium Phosphate fertilizer(MKP)