First, the modulation and storage of hay.

After the pasture is harvested, the sun can be exposed in the field. It is estimated that when the water content drops to 30%, it can be piled into small piles about one meter high and allowed to dry. In rainy or rainy seasons, it is best to stack the grasses into cones or ridges, keep them fluffy, and leave air ducts in the heap for 1 week to 3 weeks.

The dried hay must be stored properly. It is best to use stacking or stacking in the open air. Pay attention to the moisture-proof bottom pad when putting on the shelf, and be careful to make the center low in the open air.

Second, silage technology.

Silage is a technology that uses the growth of microorganisms to preserve high-quality artificial forages, which can maximize the preservation of nutrients in pasture. Silage methods include silos, silos, bagged and bale silage. Commonly used are silo (cement) and bagged silage.

Cellar-type silage: The silo is round or rectangular, and the walls and bottom of the cellar are plastered with cement. The surface is smooth, flat, and drainage holes must be left at the bottom.

Bagged silage: General bags made of 0.2 mm thick non-toxic plastic film. There are medium and small bags. Medium bags are generally rectangular, 4 meters long, 2 meters wide and 1.5 meters high. Small bags are generally cylindrical, 1 meter high and 1.1 meters in diameter, so they can be moved freely. When the silage is bagged, silage and other silage materials are dried. The moisture content is controlled between 60% and 80%, and 2 centimeters to 6 centimeters (4 centimeters to 6 centimeters for ryegrass and 2 centimeters to 3 centimeters for corn stalks). When bagging, it should be compacted layer by layer, filled with seals, sealed and not ventilated, but be careful not to overfill so as not to puncture the pockets.

Silage should pay attention to the following matters:

(1) Timely cutting: Grass heading is suitable for heading and legume forage buds. (2) Clean the pits and bags: Before the silage, use sulphur or formalin to fumigate and dry the water. (3) Cut short raw materials: Silage raw materials should be cut short to facilitate compaction and eliminate air, which is beneficial to lactobacillus intake of sugar. (4) Quick loading: It should be carried out in sunny weather. The loading should be fast. The filling should be carried out layer by layer. Each layer should be filled with 15 centimeters to 20 centimeters. Immediately, the four corners and the edges should be particularly tight. (5) Repression capping: After the silage is filled, it is first sealed with a plastic cloth, and then it is sealed tightly with hay or wet soil to prevent air leakage.

After the silage has been silaged for 40 days to 50 days, it can be used in a kiln (bag). The silage with good quality has a yellow-green color and has a rich acid or distiller's smell. The medium quality is yellow-brown with a slight taste and aroma. The poor quality is black or brown. Medium-quality silage is barely available, but it cannot be used for pregnant animals.

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