Wholesale Potassium Phosphite Liquid Fertilizer Manufacturer

Potassium phosphite is a fast-acting, 100% water-soluble liquid compound fertilizer used for foliar spray, drip irrigation, and drone-based crop programs. Manufactured in Shandong by DUOFEN AGRI, this blue liquid fertilizer offers quick release performance, acidic pH 1.5 formulation, OEM/custom packaging support, ISO 9001 quality assurance, and broad crop compatibility for distributors, importers, and agricultural supply buyers.

• B2B-ready potassium phosphite liquid fertilizer for wholesale, private label, and OEM supply
• Quick-release compound fertilizer with 100% water solubility for efficient nutrient delivery
• Technical profile: liquid state, blue appearance, pH 1.5, classification: compound fertilizer
• Quality and supply support: ISO 9001 certified production, samples available, MOQ 2000