The ammoniation tank ammoniation method uses urea with a straw weight of 3% to 5% to form a solution with warm water. Generally, the water content of the straw is about 12%, and the ammonia content of the straw should be kept at about 40%, warm water. The dosage is generally about 30 kg per 100 kg of straw. The prepared urea solution is evenly sprayed on the straw. After filling the pool, cover the pool with a plastic film and seal it with soil.
The straw storage method cuts the straw into small pieces of 1.2 to 2 cm. Prepare an aqueous urea solution and spray the urea solution evenly. After the raw materials are filled, put a layer of 5~20 cm thick straw or broken grass on the raw material, cover the soil with 20~30 cm and step on it. When sealing, the raw materials should be 50~60 cm higher than the ground to prevent rainwater from infiltrating, and check frequently. If cracks are found, they should be replenished in time.
The plastic bag ammoniation method uniformly sprays the cut straw with the prepared urea aqueous solution, fills the plastic bag, seals the bag mouth, and places it in a sunny dry place.
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