If you favor, dried blood, alfalfa, soybean, or cottonseed foods can be substituted. Nitrogen is introduced speedily from them, so it's best to wait until spring to add it in your soil. Ten kilos of blood food supplies precisely the same amount of nitrogen as 10-20 bushels of manure but https://martinadypo.blogdun.com/29897756/the-2-minute-rule-for-soil