I read somewhere that lentils beans have 25% phosphorus if blend them up as a dry bloom fertilizer & layer da bottom of my lasagna soil would it up take like coffee grounds for nitrogen i also have white rice anyone ever think to use it as a dry soil amendment/fertilizer
got bored at my shop, did some research...
it's roughly 1% phosphorus
you were probably looking at the RDA, and probably looking at the potassium
which is around 21%
but that's the RDA, the recommended daily allowance for a human diet.
it's roughly 3.7% phosphrous
around .5% mag, and around .6% calcium
if you like bean meals I'd go with neem meal or karanja six days a week and twice on sundays over any other bean or nut meal
soybean and cottonseed are others too, but I don't like those much, the soy is massivevly GMO'd (means more likely it's sprayed with Monsanto shit)
and the cottonseed is acidic.
and don't layer your soil for any reason...
ever..
I also wouldn't go with coffee grinds as the sole nitrogen input either, you want that more composted rather than a soil additive.