My soil is already deficient of zinc and sulphur... I want to use prophylactic for more production... so after how many days I can use zinc sulphate and tell the method of using it
@@nursingmasterclass5567 for soil application use zink sulphate 21%-@10kg per acre or mono hydrate zink sulphate 33%use @5kg per acre. You can also EDTA zink 12%@1gm per liter of water for spraying. Note that soil application zink does not mix with DAP. for ground nut crop genrally SSP are used 4bags per acre. In this bag you can easily mix with zink sulphate and ferrus sulphate.