NPK 20-20-20 AND SOIL AMENDMENTS - AN OVERVIEW

The principal inorganic supply of potassium to be used in NPK fertilizers is potash. Like phosphate rock, potash is mined all over the world and processed right into a far more refined product. Potassium also can come from potassium sulfate, langbeinite, and granite dust.Give your backyard garden the care it deserves with Casa De Amor Organic NPK B