Raw material pretreatment: Crush straw, tree branches, etc. (the smaller the particle size, the larger the contact area, and the faster the fermentation);

Adjusting carbon nitrogen ratio: straw based (high carbon) mixed manure/kitchen waste (high nitrogen), or adding urea (1 ton of straw plus 5-10kg of urea);

Flipping and oxygenation: Natural compost should be flipped every 7-10 days, and mechanical fermentation can be forced to ventilate by a fan to avoid anaerobic conditions;

Adding bacterial strains: Using composting agents (such as Bacillus and yeast compound strains) can shorten the natural composting cycle to 1-2 months.