Simple fermentation steps of organic compost

Simple fermentation steps of organic compost

According to the specific operation steps of the above table consumption (1 ton of raw materials):

1.Prepare probiotic activation solution. According to the ratio of probiotic stock solution: nutrient: water = 2: 2: 16, prepare 20 kg of probiotic activation solution. The specific preparation is: first dissolve 2 kilograms of nutrients with a small amount of hot water, then add cold water to reduce the temperature to 30-35 ° C, pour 2 kilograms of probiotic stock solution, add enough water and stir well.

2.Prepare the “Mixed Diluent”. Pour 20 kg of probiotics activation solution obtained in the previous step into 100-150 kg of water (the amount of water depends on the dryness and wetness of the raw materials, and the water content can be 40-50% during the control process), pay attention that the water temperature should not exceed 30 ° C above.

3.To stack. Mix 1 ton of fecal raw materials with straw and other ingredients and humus, and pile them directly on the ground. Generally, pile them in a trapezoid shape, with a height of no more than 1.5 meters and a bottom width of no more than 5 meters. Spray probiotic “mixed dilution” and stir well , Control the water content at 40-50%, carry out aerobic fermentation for a few days until the material temperature reaches 40-50 ° C (generally 1-2 days in summer, 3-5 days in spring and autumn), stack and compact, use plastic Cloth or tarpaulin seal (the surrounding should be compacted to prevent air leakage) for anaerobic fermentation.

(1) The amount of water added should be adjusted according to the humidity of the raw materials. When it is dry, add more water when preparing the “mixed dilution”, otherwise the water consumption should be reduced; when spraying the “mixed dilution”, it should also be noted that it can be sprayed several times to prevent one spraying. Too much moisture.

(2) Sealed fermentation. During anaerobic fermentation, if the sealing is not strict, it is easy to enter the air and cause high temperature, which affects the quality of organic fertilizer.

4.Dumping: Due to the different temperatures on the surface of the heap and inside the heap, the degree of fermentation and decomposing is different, and the heap should be dumped in time. The number of stacking should be determined by the temperature in the stack. Generally, it is appropriate from the start of stacking to when the temperature in the stack reaches 60-65 °C. The temperature must be strictly controlled. When the temperature in the heap exceeds 70°C, it means that there is a shortage of water in the heap, and water should be replenished and the heap should be dumped in time to continue fermentation. Stacking should be carried out to reduce moisture, and the number of stacking is generally not less than 2 times.

5.Fermentation time and temperature. The general fermentation time is 20-25 days in spring and autumn, 15-20 days in summer and 30-40 days in winter. The optimum ambient temperature for fermentation is 25-35°C.

6.Fermentation completion standard. The smell of the fermented compost is the fragrance of koji, and it is appropriate that it is not smelly.