Analysis of three fermentation methods of bio organic fertilizer
The processing method of bio organic fertilizer is more complex than that of general compound fertilizer. The manufacturing of NPK fertilizer is mainly the mixing granulation of different fertilizers. The production of bio organic fertilizer involves composting and fermentation of feces. Direct composting The main technological process is to mix chicken manure with straw or peat, pile up about 1 meter high, compost at high temperature, periodically turn and ventilate fermentation, and use it as product after fermentation. The advantages of this mode are: the organic fertilizer manufacturing process is simple, less investment, low cost. The main problem is that： 1. The accumulation time of products is too long, which is greatly affected by various external conditions, so the quality of products is difficult to guarantee. 2. The degree of continuous factory production is not high and the production cycle is long. 3. The product has low nutrient content and high moisture conten...