Agrovert 20-20-20 foliar fertilizer is a water soluble fertilizers that provides a balanced formula for the growth of your vegetable plants. it’s used all through the life cycle of the plant and maximizes targeted crop yield. npk 20:20:20 agrovert foliar fertilizer contains 20% nitrogen, 20% phosphorus and 20% potassium. it is a garden fertilizer produced by van iperen company in the netherlands. agrovert 20-20-20 foliar fertilizer is a multi-purpose 100% soluble premium fertilizer that provides a balanced formula for your vegetable plants.