This solution is made of high purity raw supplies，the method is scientific and acceptable.It's not necessarily only full of NPK, and that is essential for crops,but also adds magnesium and sulfur.immediately after application,it may advertise the absorption and utilization of various growth factors of crops,effectively protect against the deficiency disease https://buy-npk-12-12-17-2-b-te-o89123.shoutmyblog.com/31958244/the-5-second-trick-for-boron-enriched-npk-fertilizer