I am preparing to roto-till my 20 ft. square garden near San Francisco Bay.
What would be a good amend/fert. to add to my ground? What would be the
approx. amount of the product I would apply. I was thinking of something
that I could buy large bags of and spread before tilling. I grow a variety
of vegs. from corn to beans, peas, lettuce, squash, etc. Thanx ahead- Lib