The preparation method of semi-dry silage is basically the same as that of ordinary silage. The difference is that after harvesting pasture, it must be laid on the ground and allowed to dry in the field for 1 to 2 days. When the moisture content reaches 45% to 65%, it can be stored and stored. Sealing must be ensured during the process and access.

The reason why the dry semi-dry silage can be safely stored is mainly to increase the osmotic pressure, and the increase of osmotic pressure is accomplished by air drying. According to the characteristics of semi-dry silage, it is necessary to quickly dry the raw materials, so that the moisture content of grass stems as soon as possible to 45% to 65%, the drying time is as short as possible, preferably controlled within 24 hours to 36 hours.

Observing the fields in the field after drying, the stems and leaves lose bright green, the leaves roll into a tube, and the base of the stems remains in a fresh green state; the legume grass is dried to the leaves and rolled into a tube shape, and the leaves are easily broken, and the pressing stems can be extruded Moisture, stem surface can be scraped with nails, when the water content of about 50%.

Returning, chopping The basic principle for low moisture silages below 65% is inhibition of fermentation, so the purpose of cutting off is to increase the density to exclude air rather than to promote fermentation. Therefore, the lower the moisture content of raw materials, the shorter the cut should be. The dried pasture is transported from the field, preferably into a pit of about 6.5 mm into the pit.

The filling of raw materials for silage raw materials should follow the principle of rapid and compaction. Layered materials should be loaded in layers and repressed in layers. The pressure should be as good as possible. Special attention should be paid to places near walls and corners where no gaps can be left. If the current more advanced bag silage is used, special filling equipment and plastic stretch film silage bags can be used to eliminate compaction operations.

After the silage equipment has been sealed and covered with silage filled and compacted, it must be sealed and covered in time to create an oxygen-deficient atmosphere within the container and to inhibit the fermentation of aerobic microorganisms. The specific method is to fill the polyethylene film after the filling is completed, and cover the sand with a thickness of 5 cm.

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