2005-6-13 15:51:11
The backbone avocation that silkworm mulberry production is tradition of country of county ejaculation this world and become rich project, how to raise its integrated competition benefit, ensure the abidance of silkworm mulberry course of study stabilizes development to become urgent matter. And 2 spring the raise nurturance result of silkworm, from go up at all the difficult problem that solved this to beset industry of silkworm of county ejaculation this world grows.
One, 2 spring the concept of silkworm
Alleged 2 spring silkworm is to be in after convention spring silkworm raises an end, do not undertake Xia Fa, anthology leave hale new tip, strengthen fertilizer to earth up management, use the blade that continues to grow on new tip, a batch of silkworm that raise again. Particular way is to raise 2 spring the mulberry of silkworm is in one spring core is not picked during silkworm, use the mature leaf sericiculture on new tip, top of every new tip takes one page at least one core, earth up management through certain fertilizer, make new tip leaf continues to grow a batch of raised silkworm.
2, raise 2 spring the advantage of silkworm
1, increase mu of hair to plant quantity. 2 spring silkworm is general the 70% above of Zhan Yichun silkworm. Every mus raise 0.8 pieces of above, year mu smooth hair is planted can amount to 3.5-4 piece, raised unit area raise measure and produce chrysalis amount.
2, climate is reached relative to summerly silkworm appropriate mid-autumn. 2 spring silkworm Xiezhi is admirable, crop of land for growing field crops did not use fastigium to pesticide, assured the safety that silkworm makes, raise aptly.
3, 2 spring silkworm is compared silkworm yield is high mid-autumn, chrysalis actors or actress character. 2003 2 spring silkworm entire county is average per unit area yield 76 jins, than mid-autumn 67 jins of silkworm add 9 jins, grow 13.3% . 2004 2 spring average per unit area yield compares silkworm entire county 84.8 jins 78.8 jins of silkworm add 6 jins mid-autumn, grow 7.6% . Practice proves 2 spring outclass of silkworm per unit area yield mid-autumn silkworm, and 2 spring it is apparently good also that the chrysalis of silkworm pledges Yu Zhongqiu silkworm.
4, because postponed summerly strike time, etiolation leaf and sclerotic leaf are little, it is better that autumn silkworm leaf pledges, and reduced certain mulberry plant diseases and insect pests, wait like mulberry elephant bug, Sang Tianniu.
5, raise 2 spring after silkworm, autumn silkworm is mixed and can be two season one Ji Qiu silkworm, controlled delivery of cargo from storage on August 25, can use autumn so optimal climate condition avoids to add lukewarm. 2 autumn and one Qiu Ke raises matter of the pathogeny in the environment with decreasing, reduce autumn silkworm incidence of a disease greatly.
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