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Method for making straw ammoniated feed for wheat straw season
First, the benefits of straw ammonification In the countryside, every year when harvesting cereals, it also produces a large number of crop stalks, such as corn stalks, wheat stalks, sorghum stalks, etc. After straw ammoniated, it can be used to feed livestock. The role of "returning to the belly". After ammoxidation of straw, it can increase the nutritional value of straw and generally increase the crude protein content by 4 to 6%. Second, it can increase the palatability and digestibility of straw, and the general intake can increase by 20 to 40%. Increase 10 to 20%, so that milk production increased by about 10%; Third, ammoniated straw (referring to urea) is low cost, simple operation, easy to promote. Second, the straw ammonification method 1, ammoxidation pool ammoniation method (1) Select Xiangyang, lee, high ground, hard soil, low groundwater level, and easy to make, feeding, management of the local ammoniation pool. The shape of the pool may be rectangular or circular. The size and capacity of the pool are based on the amount of ammoniated straw, and the amount of ammoniated straw is determined by the type and amount of livestock. Generally, about 100 kilograms of chopped air-dried straw can be installed per cubic meter of pool. A cow weighing 200 kilograms needs 1.5 to 2.0 tons of ammoniated straw annually. After digging the pool, use bricks or stones to cover the bottom, build walls, and cement the surface. (2) Straw crushed or cut into small pieces of 1.5 to 2.0 cm. (3) Urea with a straw weight of 3-5% will be formulated with warm water. Whether the warm water depends on the moisture content of the straw or not, the general straw moisture content is about 12%, and the ammoniation of the straw should make the moisture content of the straw 40. About %, so the amount of warm water is generally about 30 kg per 100 kg of straw. (4) The urea solution should be evenly sprinkled on the straw, while stirring while spraying, or a layer of straw evenly sprayed once urea solution, while loading and pressing. (5) After filling the pool, cover the pool mouth with plastic film and cover it with soil. 2. Ammonia storage method for pits (1) Select a pit where the terrain is high, dry, hard, with low groundwater level, close to the barn, convenient for storage, and easy to manage. The size of the pit depends on the storage. The cellar can be dug into underground or semi-underground, either in crypt or cement cellar. However, the cellar must be airtight and watertight, and the crypt walls must be smoothed. If the crypts are used, agricultural plastic films of 0.08 to 0.2 mm can be used to lay flat on the bottom of the cellar and on the four walls, or at the bottom of the raw materials before entering the cellar. Straws 10 to 20 cm thick straw or hay to prevent moisture, a layer of corn stover tightly discharged around the pit to prevent the soil on the pit wall into the feed. (2) Cut the straw into small pieces of 1.5 to 2.0 cm. (3) Preparation of aqueous urea, the method above. (4) straw side storage, spraying urea aqueous solution, method ibid. (5) After the raw materials are filled in the cellar, cover the raw materials with a layer of 5-20 cm thick straw or comminuted grass, cover the soil with 20-30 centimeters, and step on the material. When the cellar is sealed, the raw materials must be 50-60 cm above the ground to prevent the infiltration of rainwater. Always check, if found to repair cracks. 3, the size of the plastic bags of ammonia bags plastic bags to facilitate the use of good, plastic bags are generally 2.5 meters long, 1.5 meters wide, it is best to use double plastic bags. The cut straw, with a prepared urea aqueous solution (the same method as above) evenly sprayed, filled with plastic bags, sealed bags mouth, placed in a sunny place. During storage, it should be checked frequently. If smelling ammonia smells at the mouth of the bag, it should be fastened again. If the plastic bag is damaged, it must be sealed with tape. Third, the quality of ammoniated feed identification After a certain period of ammoniation of straw, you can open the pit forage. The length of ammoniation depends on the temperature. The temperature is less than 5 degrees, it takes 56 days or more; the temperature is 5 to 10 degrees, takes 28 to 56 days; the temperature is 10 to 20 degrees, takes 14 to 28 days; the temperature is 20 to 30 degrees, takes 7 to 14 days; The temperature is higher than 30 degrees, only 5 to 7 days. Ammoniated stalks should be quality-checked before they are fed to livestock. In general, the ammoniated stalk color should be apricot yellow, the ammoniated corn stalk should be brown, and the texture should be soft and fluffy. The ammoniated straw has a scent and a pungent ammonia smell. Ammoniad corn stalks have slightly different odors, both silage acid and pungent ammonia. If the ammoniated straw is found to be mostly mouldy, it cannot be used for feeding livestock. IV. Feeding method of ammoniated straw After the cellar is opened, the qualified ammoniated straw should be cooled in the cool and ventilated place for a few days, and the ammonia smell can be eliminated before feeding. When ammonia is released, the ammoniated straw that has just been removed should be placed away from the livestock house and shelter so as not to release ammonia gas to stimulate human and animal respiratory tracts and affect the appetite of livestock. If the humidity of the straw is small and the weather is cold, the ventilation time should be longer. When taking the feed, the ammoniated straw to be fed every day should be taken out and put into ammonia 2 to 3 days before feeding, and the rest should be sealed again to prevent the ammoniated straw with high water content after ammonia release from being fed for a short period of time. Incomplete mold and spoilage. Ammoniated straw is only suitable for feeding ruminants such as cattle and sheep, and is not suitable for feeding monogastric livestock such as horses, quail, donkeys, and pigs. During the initial feeding of ammoniated straw, the livestock is not adapted, and on the first day of feeding ammoniated straw, one-third of the ammoniated straw is mixed with 2/3 of the unamended straw, and gradually increases after a few days. Livestock are no longer willing to eat unammonified straw. The amount of ammoniated straw can generally account for 70-80% of the cattle and sheep's diet, and only half an hour or 1 hour after the animal feeds ammoniated straw, they can drink water. Hungry livestock should not be fed in large quantities. In areas where conditions permit, it may be appropriate to mix some feeds containing higher carbohydrates and feed them with a certain amount of minerals and silage, so that the role of ammoniated straw can be fully utilized to increase the utilization rate. If livestock poisoning is found, 500 grams of vinegar can be detoxified.
The valve stem is an important part of the valve.
It is used to drive, connect the actuating mechanism or handle, and directly
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or regulation.Valve stem in the valve opening and closing process is not only
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with the packing. Therefore, in selecting the stem material, it must be
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of the material should be paid attention to when selecting.The valve stem in the
valve opening and closing process, under tension, compression and torsion force,
and direct contact with the media, as well as the relative motion between the
friction and filler, so in the choice of stem material, must ensure that it
provides adequate temperature strength, good impact toughness, abrasion
resistance and corrosion resistance of.
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