First, preparation work
1. Dig a rectangular pit with a length of 10 meters, a width of 3 meters and a depth of 2 meters into the ground. Seal the bottom and the surrounding area with cement to prevent the ground from seeping and seeping, and make a “underground preparation†for the seal.
2. After the cement trough is cool, the dried corn stalks are cut into 1-3 cm sections by a mower, and the humidity is held in groups by hand, and the fingers are not dripping, and it is appropriate to loosen the hands.
Second, fermentation work
1. Disperse the cut straw into the cement tank, and evenly spread a layer of urea every 40 cm thick layer of straw, and use one foot per layer to layer it.
2. After the straw is filled with the cement tank, the top is sealed with a plastic cloth, and the surrounding area is buried with soil. The straw after sealing should be avoided in the sun and rain. In winter, it can be considered indoors or in plastic greenhouses. The optimum temperature for fermentation is 10~30°C, summer 4～7 days, winter 10-15 days.
Third, feeding work
1. When the straw feed has obvious mellow, sour and fragrant taste, the texture can be used when it is soft and moist.
2, how much to use, use is still closed. The fermented straw can be kept fresh for 1 to 2 years.
3. Mix in 60% of each feed.
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