1. Dig a rectangular pit 10 meters in length, 3 meters in width and 2 meters in depth to the ground and seal the bottom and the perimeter with cement to prevent seepage of water through the bottom of the ground and prepare the ground for sealing.
2. When the cement tank cools down, dry 30% of the corn stalks and cut it into 1-3 cm sections with a lawn mower. The humidity is hand-carried into a group. Fingers do not drip or loosen.
Second, fermentation work
1. Distribute the chopped straw into the cement tank. Uniformly spread a layer of urea every 40 cm thick layer of straw.
2. After the straw is filled in the cement tank, the top is sealed with a plastic cloth, and the soil is buried strictly. Sealed straw should be kept away from sunlight and rain as much as possible. In winter, it can be considered indoors or in a plastic greenhouse. The optimum temperature for fermentation is 10-30°C, 4-7 days in summer, and 10-15 days in winter.
Third, feeding work
1. When the straw feed has obvious mellow and acid smell, it can be used when the texture is soft and moist.
2. How much to use, how much you can use, but it is still closed. One-time fermentation of straw can be kept fresh for 1 to 2 years.
3. Mix in 60% of each feed.
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