It is a heptahydrate in the form of iron (2+) sulfate. Our ferrous sulfate fertilizer can also be dried and oxidized to create other useful forms of iron. Introducing our premium Ferrous Sulfate Fertilizer, the optimal solution for enriching your soil with essential iron and promoting vigorous plant growth.
Water-Soluble Monopotassium Phosphate MKP Fertilizer 0-52-34 (1 lb)
Water Soluble phosphorus and potassium. Can be used dry or can be dissolved in water. Transports water and nutrients. Use during growing period when phosphorus and potassium are needed, but it is necessary to limit nitrogen.