What are the main raw material of organic fertilizers and their characteristics

1.The worst is sewer sludge

 heavy metals exceed the standard, the fertilizer efficiency is short, and there is no stamina

2.Animal manure.

A large number of harmful bacteria, root-knot nematodes, will be produced.

3. Wood chip residue, rotten leaves,lower nutrient content

4. Food residues, low nutrient content

5. Fish meal, oil meal, soybean meal, food-grade raw material, doing good for plants’ nutrient uptake.Our fertilizer is made with these food-grade materials.