
Potassium phosphite

Liquid potassium phosphite is a 100% water-soluble phosphite fertilizer designed for fertigation and foliar application in commercial agriculture. Manufactured in Shandong, China by DUOFEN AGRI, this quick-release liquid supports efficient nutrient delivery, stable mixing, and flexible OEM or customized packaging for bulk buyers serving field crops, orchards, flowers, and turf management programs.
Detailed chemical composition and field application guidance will be updated shortly.