After the organic fertilizer is produced by the fermentation according to the above steps, the organic fertilizer will be piled up for a second time for fermentation, and the temperature will be reduced to about 40 ℃ for 15-20 days. Sometimes, when making bio organic fertilizer,it also needs to use the fermentation compost turner machine in
bio organic fertilizer production. The bacterial agent with the functions of phosphorus, potassium, nitrogen fixation and underground pest control will be evenly added to the fermented organic fertilizer in the proportion of 1:500.
Besides the
npk fertilizer production line to be designed for producing the compound fertilizer,
organic fertilizer production line is also to be designed for producing the organic fertilizer granulator.