(1) Preparation of chicken manure and accessories
Choose an open space with flat ground, no water accumulation and about 30 square meters, and stack chicken manure and auxiliary materials separately.
In order to make the mixture of bacteria and chicken manure mix evenly, we divide 1000 kg chicken manure into five equal parts. Each equal is about 200 kg.
Generally, granular or powdery wheat bran and peanut shell powder are used as the main auxiliary materials, such as corn straw, cotton, orange stalk, etc. if they are used as auxiliary materials, they should be cut into 5 to 10 cm long first. If they are too long, it will be inconvenient for the organic fertilizer machine
to mix. The purpose of adding auxiliary materials is to adjust the water content and carbon nitrogen ratio of chicken manure and increase the permeability of fermentation products.
(2) Construction of fermentation platform
After the chicken manure and auxiliary materials are prepared, a fermentation platform shall be built according to the actual situation of the environment and farmers.
When building the fermentation platform, it is necessary to select a place that is sunny, flat, high-lying, away from the tuyere and convenient for operation. First dig a number of parallel ventilation ditches, which are 30cm wide, 30cm deep and 20cm wide. The branches, bamboo strips, straws, etc. are laid horizontally on the ditch beam to form a bottom breathable fermentation platform, which is convenient for ventilation and oxygen supply. Because the beneficial biological flora in HM fermentation base belongs to aerobic bacteria, only when the oxygen is sufficient can the fermentation material be better decomposed.
After the fermentation platform is built, we can manufacture the static processing biofertilizer project
(3) Operation steps
Take a portion of the mixture of bacteria and evenly sprinkle it on the prepared chicken manure, and stir evenly. During the mixing process, the water content of chicken manure should be adjusted to about 60%, that is to say, grasp a handful of chicken manure in your hand, hold it tightly into a ball, and water can be seen between fingers but no water dripping. Let go of your hand and let it go with a touch. That's the water content. If the water content is too high, add wheat bran, corn straw and other auxiliary materials to reduce the water content of chicken manure; if the water content is too low, add fresh chicken manure or sprinkle some water. Pile the mixed chicken manure on the fermentation platform.
Treat the other four piles of chicken manure in the same way, all together. At this time, the height is about 1-1.2m, the length and width are 1.5m-2m square, and the volume of compost is generally 1.5m3.
(4) Management of fermentation process
In the fermentation process, the temperature control is very important. If the temperature is too low, it can not reach the standard of fermentation; if the temperature is too high, the nutrients of compost are easy to lose. The temperature inside the compost is 30 cm from the outside to the inside. Therefore, the metal rod of the thermometer used to measure the temperature should be longer than 30cm. When measuring, it should be inserted into the compost for more than 30cm, so as to correctly reflect the fermentation temperature of the compost.
Requirements of fermentation temperature and time: after composting, chicken manure enters the first fermentation stage. It will automatically heat up to 55 ℃ for 5 to 7 days, then it can kill most of the eggs and harmful bacteria, and reach the harmless treatment standard. After 3 days or so, turn over the pile with a windrow turner
, which is conducive to ventilation, heat dissipation and even maturity.
After fermentation for 7 to 10 days, the temperature will naturally drop below 50 ℃, because some strains will lose their activity due to high temperature in the first fermentation process, when the second fermentation is needed. Add 5 to 8 kg of bacterial mixture again and mix well.
This time, the water content will be controlled at about 50%. If you grasp a handful of chicken manure in your hand, hold it tightly into a ball, the palm of your hand is wet, and there is no water seepage between the fingers, indicating that the water content is appropriate.
The temperature of the second fermentation should be controlled below 50 ℃. After 10 to 20 days, the temperature in the compost will drop below 40 ℃, which meets the fermentation standard.