Can oil residues be used as organic fertilizers?

The residue left after oil extraction, such as soybean, peanut, sesame, rapeseed, tung seed, tea seed, cottonseed, rapeseed, and sunflower, can be made into cake fertilizer, which is a high-quality organic fertilizer.
Cake fertilizer contains 1.11%-7.00% nitrogen, 0.37-3.00% phosphorus pentoxide, 0.85%-2.13% potassium oxide, 75%-85% organic matter, and also contains protein, amino acids, trace elements, etc. Rapeseed cake and soybean cake also contain crude fiber 6%-10.7%, calcium 0.8%-11%, choline 0.27%-0.70%, in addition, there are a certain amount of niacin and other vitamins. The nutrient content of different cake fertilizers is not the same.

Cake fertilizer is a kind of slow-acting organic fertilizer. When using cake fertilizer as fertilizer, it must be fermented and decomposed by microorganisms. Our cake fertilizer making equipment is complete in specifications and quality, and all indicators meet or exceed national standards. Our products are popular both at home and abroad. We have realized one-stop service for design, manufacture, installation, debugging, technical training. Welcome to contact us for details.