The sludge from Biogas production can be used as organic fertilizer, which function as plant growth simulator and Bio-fungicide. The quality of residual sludge from Biogas production process is better than the manure obtained directly from the cattle cage .if is because anaerobic digestion of organic material occurs in the fermentation process in the digester.it results in the increasing concentration of nitrogen, phosphorus and potassium .
Advantages of using Organic fertilizer
- Balance the soil ecosystem.
- Boost plant health naturally.
- The process of decomposition requires no chemical intervention.
- Organic fertilizer don't upset the balance in the soil because they don't leave behind any artificial compounds.