SOP just isn't a naturally transpiring mineral, and usually needs to be developed through chemical procedures. Because of the useful resource-intensive procedures employed to develop it, SOP is priced larger than MOP. The commonest approach applied to provide the fertilizer SOP is known as the Mannheim procedure. Substantial fertiliser prices https://remingtonfyqiy.blog2learn.com/74902637/vietnam-fertilizer-no-further-a-mystery