Greenhouse sericulture technology

Greenhouse sericulture, first, labor saving, is conducive to large-scale production. Since the sericulture of ground sericulture is adopted in greenhouses, the previous indoor twitches such as mulberry, silkworm, expansion, sand removal, and sediment dumping can be exempted. This significantly saves labor, reduces labor intensity, and greatly improves Labor productivity. According to the survey, the 5th-in-class employment is about 60% less than that of the indoor sericulture. The second is to reduce the cost of sericulture and increase the income of silkworm farmers. Large-scale sericulture in sheds is implemented in large-scale sericulture. The number of reared sericulture is increased by several times compared with indoor breeding. Generally, the cost can be reduced by about 30%, and net income can be increased by 6 to 7 times. The average household income is about 20,000 yuan. Third, the sericulture environment has been improved, and the yield and quality of cocoon have been significantly improved. Shed sericulture in greenhouses, spacious sheds, air circulation and can always keep fresh; silkworm seats are thin, silkworms have good environmental conditions for growth and development, and silkworm diseases have less chance of occurrence and spread, and their larvae rate, cocoon layer rate, and yield Better than indoor breeding.
The technology of sericulture in greenhouses is basically the same as indoor sericulture, but the following points must be highlighted: Inside the greenhouse to prevent ant harm. Ants are the enemies of sericulture in greenhouses. To prevent their damage, after sericulture is done in the shed, the chlordane powder can be sprinkled on the ground in the shed. Before the larvae enter the shed, they should be covered with a plastic mulch. In order to prevent the poisoning of silkworm powder. 2. Timely control of the children's time into the shed. In general, the best time to enter the shed is the third day of age. Due to the relatively small age, the ability of the silkworm to resist adverse environmental conditions is relatively weak. Therefore, it is not possible to feed the silkworm to the underground quail immediately. Instead, a silkworm larvae should be raised first or a small room should be kept for breeding. Room, until the 5th instar larvae foraging, and then moved to the ground floor to feed. 3. Focus on the greenhouse temperature and humidity regulation. The temperature and humidity in the shed has a great influence on the sericulture in greenhouses. Therefore, sufficient attention should be paid to this. When the temperature in the shed is low, it should be lifted in the greenhouse to increase lighting and increase the temperature in the greenhouse. When the silkworm is reared in late autumn, the ground dragon can be used for warming. When the temperature is high, the ventilation window of the back wall, the ventilation openings of the front wall and the sunroof can be used for cooling, and the vents should be properly closed at night to maintain the temperature of the greenhouse. When the humidity in the greenhouse is high, Ventilation of greenhouses should be strengthened to remove moisture from the shed. In case of rainy weather, it may be heated or drained using an electric fan and dampened with dry materials. 4. On the shed, we must talk about methods. Although greenhouses have a large space for raising silkworms, they are the key link. Pay attention to the work of ventilation and dehumidification in the automatic shed and the upper shed. When it was found that about 5% of the silkworms were mature, they had to eat ecdysteroids once and concentrated on a large number at noon the next day. Sericultural farmers adopting the automatic smashing method should put the scallops directly on the silkworm slats. After the mature silkworms climb up, they should promptly move the sedges outside the shed. After the first batch of cymbals were hung up, the remaining mature silkworms were placed in a squatter and slammed until the end of the last supper. After the completion of the captain, it is necessary to promptly clear the silkworm excrement in the shed, and then move the sepals to the north and south of the shed. The sepals must be separated from the ground by 1 meter, and the distance between the sheet and the sheet should be more than 20 centimeters. wet. 5. Reasonably harvested mulberry trees. Silkworm sericulture mulberry trees should use the method of rotation every other year. In the same mulberry garden, the divisions are used to cut the tip. The light shearing area should have a length of 1 meter, and the area should undergo regular summer cutting; the heavy shearing area should have a length of 0.8 meters and no summer harvest. When silkworm leaves are used for spring silkworms, the shoot area is heavily sheared, and 2 to 4 instars should adopt 3 leaves, and the 5th instar should be fed to silkworms in conventional summer cutting areas. For summer silkworm leaves, the upper leaves should be fed from 1 to 3 years old and the silkworms should be thinned at 4 to 5 years of age. In the unswept areas, two branches should be left at the top of the mother branch and all other branches should be cut off. Conduct sambuculture. Mid-Autumn leaves were fed with silkworms. In the late autumn, the leaves can be combined with cutting tips, and the mulberry culms can be cultivated at the 5th instar. The top of the re-cut branches must retain 3 to 4 leaves to prevent the fall of winter buds.

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