ollie989898
Member
If it’s cool or cold use mantrac works better and longer lasting,4 weeks
mnso4 if it warm only lasts 2 weeks (but stronger if warm enough to pick up the mn in that period)
on third dose on a few fields now
Mantrac is a premium product mind. I personally always used a product containing manganese nitrate and manganese sulphate, it was cheap enough to use routinely if you so wished. I do agree though that Yara make some good kit. Used to use Magphos K etc a fair bit.