If you prefer, dried blood, alfalfa, soybean, or cottonseed meals might be substituted. Nitrogen is introduced speedily from them, so it's best to attend until spring to incorporate it in your soil. 10 lbs . of blood meal materials the same quantity of nitrogen as 10-20 bushels of manure but https://getidealist.com/story19553407/the-best-side-of-soil-aggregates