2005-6-13 16:02:37
Zhejiang is saved to popularize technology of big canopy sericiculture, organized personnel 2 times to go to province of Shandong, Jiangsu to undertake special subject of big canopy sericiculture makes an on-the-spot investigation early or late 2001 at 2000 ～ , and 2001 spring silkworm begins to wait for 5 city county to pass in tung countryside spring, summer, autumn 3 season 5 period experiment, scored initial success.Type of 1 big canopy has room of simple and easy silkworm, big canopy and mobile silkworm room to wait for 3 kinds by structural cent, specific place still has ground hole Yo.
(Room of 1) simple and easy silkworm: Basically going up anxiety sea besmear. The size of room of simple and easy silkworm, it is 35 × 8m commonly, wall body is cement brick all around, the top is asbestine tile, take 2 silkworm stand, cost makes an appointment with M2 of 35 yuan of ／ . Room of simple and easy silkworm uses time to grow, facilitating sericiculture is operated, easy control of temperature and humidity, difference in temperature is small. But one-time investment is large, using integratedly on can with breed photograph union.
(2) big canopy: By can divide again with makings and structure for plastic big canopy, straw big canopy and simple and easy big canopy 3 kinds. ① is plastic big canopy: This is the main type that experiments at present. Field mixes size basis to raise an amount and be decided, it is 20 ～ commonly 7 ～ of 25 × 8m, with the assembly of thick 1.5mm of diametical 25mm, wall steel tube of type galvanization big canopy makes arch wearing, the plastic film with deep 0.1mm makes canopy top enclothe material, again 2 sunshade net makes 1 ～ of Fu thermal insulation. Build 2 silkworm station commonly, cost makes an appointment with 15 ～ M2 of 20 yuan of ／ . Plastic of big canopy make cost low, facilitate use integratedly, but prevent high temperature capability poorer, difference in temperature of day and night is bigger also. ② straw big canopy: Basically be to raise the place that duck centers quite to use duck canopy sericiculture partly. Size is 12 × 8m commonly, all round the brick wall with tall 1.2m of build by laying bricks or stones, canopy top enclothes straw, 2 silkworm stand is taken inside canopy, the country builds left and right sides of M2 of about 15 yuan of ／ . Draw materials of straw big canopy is easy, cost is inferior, it is better to prevent high temperature effect, temperature accepts the external world the influence is minor; But disinfect hard complete, straw use time is short, general 3 ～ need 4 years to exchange. ③ is simple and easy big canopy: Use the vacant lot after the house before the room, field mixes size basis to raise an amount and be decided, build according to building wall with timber or bamboo temporarily frame, fu braids the material preventing rain such as cloth to be become namely on, after silkworm period ends, demolish namely. Simple and easy big canopy, build convenient, cast this province, but temperature accepts the external world the effect is apparent, difference in temperature is big.
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