Firstly, our customer told us he has a large dairy factory, and he want to buy a new compost turner machine to treat dairy manure. Then, he also wants to add 20-30% vegetables trash to ferment with cow manure.
That are very good raw materials for organic fertilizer production, especially dairy manure. Because the cow dung is rich in organic matter. For example, the fresh cow dung contains 15% organic manure. In addition to dairy manure, there are many other good raw materials for organic fertilizer, such as chicken manure, pig manure, horse manure and biogas residue, straw sawdust, filter mud from sugar or tea mill and so on.