2005-6-17 14:52:52
Raising big silkworm is capturing pod the key of high grade high yield. In last few years, mesa area is summed up ceaselessly east and popularize the practical technology that suits silkworm raiser save labour to change sericiculture, pod crop and quality gained revolutionary headway, area of whole town mulberry field 100 thousand mus, year hair silkworm plants 290 thousand pieces, produce chrysalis 240 thousand, average piece produce 40 kilograms, chrysalis rate is amounted to on 93% , jie Shu is led 73% , chrysalis silk spends 93.7 minutes completely, now its big silkworm raises administrative technique point to introduce as follows:
1, reasonable adjustment temperature and humidity. The 4th, temperature of 5 age purpose is respectively 24, 25 ℃ , 23, 24 ℃ , dry wet difference is respectively 2.3, 3 ℃ , 3, 4 ℃ ; The weather of microtherm overcast and rainy, silkworm is indoor after wanting to reach rain to stop through warming up open the door in time, drive the measure such as the window, try to reduce humidity, adjust temperature. In encounter autumn period when high temperature is dry, should adopt canopy of silkworm room roofing, big canopy to carry cover grass on the head shade, silkworm is indoor outside spray well water, put rare silkworm plaque to wait drop in temperature measure, build get used to silkworm grow the purpose temperature and humidity of development.
2, keep measurable rare put. Reasonable density is silkworm the premise of healthy growth. Fill feed period every pieces of silkworm is planted 4 age amount to the largest area 14m2(10 poors) , 5 age amount to 35m2 (45 humble or 10 pieces of 1.3 × weave cloth 3 meters) . Silkworm head is too rare, easy cause step full page, waste Sang Xie, cause silkworm head volume easily also not neat; Silkworm head is too close, easy happening silkworm climbs silkworm to cause scar, increase the chance that contracts silkworm disease.
3, hold to fine mulberry gorge. Admirable Sang Xie is pod the foundation of high grade high yield. Big silkworm maturity of leaf of mulberry of period leaf qualitative requirement is tall, wait without tender leaf, old leaf, bug mouth leaf. The time that select a part of a historical period was controlled at 10 o'clock in the morning commonly and the dusk is advisable. 4 age give out 3 times leaf, 5 age use a mulberry Yo. Rapid movement of trailer fast outfit is used after Sang Cai cut down, consistent put indoors calm is shady and cool place, upper cover is clean wet cloth, time of lay aside leaf is unfavorable more than 12 hours, place of lay aside mulberry insists to use the bleaching powder fluid of 0.5% to be disinfected everyday. To when mulberry will one bump presses mulberry branch to be arranged orderly, give Sang San everyday second, feed every time sufficient, dispose of is fed, see fill in vain.
4, strengthen ventilated take a breath. Big silkworm is ventilated the key that is high yield, at present all-pervading absolves sanded technology, make silkworm indoor or the air inside big canopy is easier muddy. Saying path: "Big silkworm relies on wind to raise " , ask silkworm room opens the door namely window, form air convection, in the evening when microtherm comfortable open the door the window is paid attention to add lukewarm take a breath, cloth of canopy or awning of reed mats of two side floor lifts big by day canopy up 50cm, in order to facilitate ventilated take a breath. Otherwise, silkworm appetite is poor, easy bring about silkworm the constitution drops, incidence of a disease increases, affect pod crop and quality.
Previous12 Next
