Potassium: Within the 3 elements, using nitrogen fertilizer ranks the primary, accompanied by potassium fertilizer,potassium can advertise the growth of strong crops, stalks thick and difficult, increase the resistance to pests and diseases and lodging;Promotes the manufacture of sugar and starch;Potassium plays a task in afterwards levels of plant growth, https://npk-12-12-17-2-b-te-for-c14679.pages10.com/about-discounted-npk-12-12-17-2-b-te-68051991