If you like, dried blood, alfalfa, soybean, or cottonseed foods can be substituted. Nitrogen is introduced immediately from them, so it's best to wait right up until spring so as to add it for your soil. Ten lbs of blood meal provides the same level of nitrogen as 10-twenty bushels https://cashlmcca.tokka-blog.com/29557319/getting-my-soil-acidification-to-work