39 Trust the science? Any farmers confirm this? (www.newscientist.com) posted 126 days ago by mitmont123 126 days ago by mitmont123 +39 / -0 Spreading crushed rock on farms could absorb 1 billion tonnes of CO2 Putting silicate rocks from mine waste on fields could improve crops and limit global warming, but some researchers question where all that rock is going to come from 42 comments share 42 comments share save hide report block hide replies
Exactly. We had the same issue. Lime is much cheaper to add than fertilizer.
Try Dolomite, that has magnesium as well as calcium.
And don't forget the phosphates - also known as guano, or chicken-shit, or for organic kitchen farmers: cocoa (after having drunk it some, the solids are full of phosphates).
I’ve been using dried and crushed eggshells in garden for the calcium content. Hadn’t tried Dolomite though.