The preparation of silkworms by mulberry culture in Yangchun in March should be carried out firmly.

The depressed cocoon price market in 2007, to a certain extent, affected the enthusiasm of sericulture farmers. For farmers in key villages and towns of sericulture in Chun'an County, planting mulberry and sericulture is still the main source of income for families. Therefore, the author reminds the majority of sericulture farmers that they should be treated rationally when the cocoon market is in the doldrums, and the enthusiasm of sericulture should not be easily shaken. At present, it is necessary to seize the favorable opportunity to book enough spring silkworm species, do a good job in the management of mulberry cultivation, and strive for a turnaround in the year of the Rat.

Relevant experts in the province believe that the rise and fall of cocoon prices in the past two years is an irrational shock, and the trough of sericulture benefits is a temporary phenomenon. There are three reasons: first, from the national sericulture production situation, due to climate and other reasons, except for spring cocoon production, summer and autumn cocoon production is generally reduced. At the same time, there is a shortage of high-grade cocoon silk in the market, and the stock of secondary cocoons is not abundant. At present, there is still a certain amount of time before spring cocoons come on the market, and the raw materials of processing enterprises are not abundant. Second, silk prices remained at a low level of 16.5-210000 yuan per ton in 2007, and now there is almost no room for decline. Third, from the Chinese cocoon and silk trading market, dry cocoon forward contracts are bullish. Therefore, it can be said that the cocoon and silk market has slowly entered the stage of recovery. Therefore, the majority of silkworm farmers should be treated rationally when the cocoon market is in the doldrums, and can not easily shake the enthusiasm of sericulture. At present, we should mainly do a good job in the following work.

Do a good job in planting new mulberry. First, the planting density should be strict. In order to give full play to the characteristics of high yield and high quality of new mulberry varieties, mulberry planting density must be strict and carefully planted. Nongsang No. 12 and No. 14 planted about 750 plants per mu (the row spacing was 0.66 m × 1.35 m). Second, it is necessary to "plant mulberry in deep trenches and shallow planting, and grow mulberry in fine soil". In order to thicken the loose soil layer and expand the root extension surface and absorption surface, mulberry land should be ploughed and leveled first. Third, it is necessary to do a good job in the work of growing mulberry trees. The new species of mulberry is cut and dried in the first ten days of March, and the fixed height is generally 25-30cm. At the same time, we should do a good job of choking soil, strengthening seedlings and watering clear water and dung.

Do a good job of mulberry cultivation and management in spring. First, it is necessary to do a good job in ditching and drainage. If the mulberry garden meets the stagnant water, it will cause the mulberry root to rot, affect the mulberry tree growth, cause the mulberry tree growth to be slow, the mulberry leaf yield, the quality drops. Especially the newly planted mulberry seedlings are easy to cause dead seedlings and seriously affect the survival rate of mulberry seedlings. As there are more Rain Water in spring, we must open a good border ditch, so that the ditch is connected, and strive to drain smoothly and dry when the rain stops. Second, it is necessary to apply fertilizer reasonably. Spring fertilizer is applied twice. Spring fertilizer was applied in mid-March for the first time, 40kg (or ammonia bicarbonate 50kg) per 0.067 ha of mulberry, and 50kg (or urea 20kg), superphosphate 15kg and potassium chloride 10kg per 0.067 ha of mulberry in mid-April.

Do a good job of pest control in white strips. A chemical control should be carried out before the end of March, with 80% dichlorvos solution plus 40% phoxim 1500 times or 40% Sangbao EC 3700 times (1 barrel), requiring all branches and tree trunks to be wet.