Potassium: In the three elements, using nitrogen fertilizer ranks the first, followed by potassium fertilizer,potassium can promote the growth of robust crops, stalks thick and hard, enrich the resistance to pests and ailments and lodging;Promotes the manufacture of sugar and starch;Potassium plays a role in later phases of plant growth, https://cristianzskat.blogdomago.com/31676768/a-review-of-affordable-fertilizer-for-crops