Potassium: During the 3 elements, the use of nitrogen fertilizer ranks the 1st, followed by potassium fertilizer,potassium can market the growth of robust crops, stalks thick and really hard, improve the resistance to pests and conditions and lodging;Promotes the production of sugar and starch;Potassium plays a job in later phases https://bulk-npk-12-12-17-2-b-te24790.blogtov.com/13197238/an-unbiased-view-of-npk-12-12-17-2-b-te-for-citrus-crops