Process manure or liquid fertilizers into solid or liquid fertilizers.
There is also a fertilizer sales point where you can sell your fertilizers.

— Factory:
Cycles per hour: 8
— Incoming resources:
Liquid manure: 100,000 liters
Manure: 100,000 liters
Water: 50,000 liters
— Output:
Fertilizers: 40,000 liters
Liquid fertilizers: 90,000 liters
- Price: 10,000 USD
- Daily maintenance: 50 USD

Point of sale:
Sale of fertilizers or liquid fertilizers
- Price: 10,000 USD
- Daily maintenance: 50 USD