Potassium: From the a few elements, the use of nitrogen fertilizer ranks the initial, accompanied by potassium fertilizer,potassium can encourage the growth of strong crops, stalks thick and difficult, enrich the resistance to pests and illnesses and lodging;Promotes the manufacture of sugar and starch;Potassium plays a task in later on https://purchasenpk12-12-17-2btef15689.worldblogged.com/38719701/helping-the-others-realize-the-advantages-of-high-yield-fertilizer-npk-12-12-17-2-b-te