Silage is to fill the fresh green feed, juicy feed, industrial and agricultural by-products into closed silo towers, pits or other closed containers. The lactic acid bacteria carried by the plants themselves produce acidic conditions, inhibiting and killing the reproduction of other microorganisms. So as to achieve the purpose of long-term preservation of feed. In autumn, it is the season of harvest and an excellent opportunity for silage. According to the existing conditions, all regions can engage in silage such as corn stalks, sweet potato vines, etc., and reserve green and green fodder for winter and spring.
Silage raw material selection. Selecting the varieties of plant silage materials and the appropriate harvest time have a great influence on the quality of silage. Harvesting plant raw materials at suitable ripening stage can ensure the highest yield and optimum nutrient content. Gracilaria pastures are preferred for harvesting at the heading stage; legume forages are harvested at the early stage of flowering; and crop stalks are used as silage materials, they should strive to be advanced as much as possible. Harvest crops. For silage corn stalks, it is necessary to carry out silage at the same time when harvesting the ear, ie, harvesting and side silage, and the timing cannot be delayed. In the east of China, harvesting in the middle and early September is appropriate.
Clean up silage facilities. Used silage facilities should be used to excavate soil from the pits and ravines before use, and to remove the dirt and debris from the walls of the silage facilities. After thorough cleaning and drying, they can be reused.
Moderately chopped silage material. Before the silage, the raw materials are generally chopped, so that the juice oozes out and wets the surface of the raw material, which is favorable for the rapid fermentation of lactic acid bacteria and improves the quality of the silage. The shredding of raw materials often uses silage combine harvesters and green feed choppers, as well as roller type rakes. When shredding, the machine should be adjusted to rough or finely cut parts depending on the type of raw material. The degree of shredding of raw materials is determined according to the type of feed and the different textures of raw materials, and is generally cut to a length of 2-5 cm. The raw materials with a large amount of water and fine texture can be cut longer, with less water content and rough texture. The raw material can be cut short. The chopped raw materials are easy to practise and compact, the air is discharged well, the settlement is more uniform, and the nutrient loss is also less.
Control raw material moisture content. The moisture content of raw materials is the most important factor in determining the quality of silage. Most silage materials have the best silage content with 60%-70% moisture content. The moisture content of newly harvested corn stalks is generally 65%-70%. Fresh sweet potato vines and other water content is too high, plus some wheat straw (short), bran and other dry feed, to absorb part of the water, silage better. Before shredding, the stem of the plant was twisted without twisting, and its soft leaves did not show signs of drying, indicating that the water content of the raw material was suitable for silage. Cut short raw materials of plants and slowly release them by pressing and squeezing them by hand. The raw materials in the hands are in a ball-like state. When the pellets slowly expand and the water is not dripped, the raw materials are suitable for silage.
Quick loading and compaction of silage. After starting the silage, the silage material is filled faster to avoid corruption before the material is filled and sealed. In general, a silage facility should be filled and compacted within 2 days. In order to enable the shredded raw materials to be timely fed into the silage facility, the shredder of the raw materials should be placed near the facility. The shredded raw materials should be avoided as much as possible. Some people in the silo facilities often mix the ingredients they feed. When raw materials are put into a round silage facility, they should be leveled one by one. When the silage is loaded, it can be divided into several sections as appropriate and filled in sequence. Filling speed must be fast, but also pay attention to safety, wear a safety helmet. In order to avoid air gaps and spoilage, any shredded plant material should be packed and compacted in silage facilities, and the pressure should be as good as possible. Care should be taken not to leave gaps near the sides and corners. This can create an oxygen-deficient environment and facilitate the propagation of lactic acid bacteria. Compaction of raw materials, small silages are trampled by humans, and large silages are preferably compacted with track-type tractors. However, care must be taken not to allow the tractor to carry dirt, grease, broken metal, etc. After the tractor compacts, the corners where the machine can't press can still require human pedaling.
Sealing and covering of silage facilities. After the silage facilities are filled with raw materials, they must be sealed and covered. The purpose is to isolate the air and continue contact with the raw materials, so that the silage facilities are in an anaerobic state to inhibit aerobic microbial fermentation. Sealing and covering methods may be preceded by a layer of fine green grass, a layer of plastic film on the grass, and a pile of soil pressed against the silo or silage wall. Then, with a proper lid tightly, you can also cover the plastic film with a layer of mats, grass and other objects, and then cover the soil. If no plastic film is used, a 3-5 cm thick soft grass shall be placed on top of the compacted material, covered with 35-45 cm of wet soil, and compacted. Every day, check the condition of the cover soil and pay attention to sink it along with the silage material when it sinks. The cracks and voids formed on the top of the lid when it sinks are wiped with mud to ensure a high degree of sealing. In the absence of sheds in the silo, the soil on the pit floor must be higher than the edge of the silo and be rounded to prevent rain from flowing into the pit.
Screw Air Compressor,Small Screw Air Compressor,Small Rotary Screw Air Compressor,Screw Type Air Compressor
Hangzhou Zhongju air separation equipment manufacturing Co., Ltd , https://www.hzzjkfzz.com