Ammonium Polyphosphate (APP)
About Ammonium Polyphosphate (APP)
Ammonium Polyphosphate (APP) is a liquid fertilizer with high phosphorus (10-15%) and nitrogen (10%), designed to enrich phosphorus levels in crops like potatoes, corn, and soybeans during early and mid-growth stages.
Its polyphosphate form provides slow-release phosphorus for sustained root development and energy transfer, while nitrogen supports foliage, leading to 10-20% yield increases and improved tuber or grain quality.
Ideal for fertigation, it mixes easily with water to correct phosphorus deficiencies in alkaline or neutral soils. Benefits include stronger roots, better stress resistance, and enhanced nutrient uptake. Supports sustainable farming by reducing leaching.
Explore related RNZ products: Calcium Thiosulphate (CaTS), Potassium Thiosulphate (KTS).
At a glance
Apply 1-2 liters per acre via drip or 0.5-1% foliar during planting or vegetative growth.
Application rate and timing can vary by crop, growth stage, soil and local conditions. Contact RNZ for crop-specific guidance.
