Potassium: During the 3 elements, using nitrogen fertilizer ranks the initial, accompanied by potassium fertilizer,potassium can promote the growth of sturdy crops, stalks thick and really hard, improve the resistance to pests and diseases and lodging;Promotes the production of sugar and starch;Potassium plays a task in afterwards phases of plant https://simontmevl.blogscribble.com/32795487/the-ultimate-guide-to-npk-12-12-17-2-b-te-for-sale