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KrishiSewa - Agriculture Knowledge for Indian Farmers

कशेरू Tag

10 May

Posted at 10:56h in Crop Cultivation
D K Gogoi 28 views

रेशमकीट इरी के मेजबान सार्वकालिक पौधे केसेरू की खेती   Ericulture contributes significantly Indian commercial silk production which is mostly confined to north-eastern part of the country i.e. Assam, Meghalaya, Manipur, Nagaland, Arunachal Pradesh and Mizoram. A small quantity of eri cultivation has been extended to Bihar, West Bengal, Orissa, Jharkhand, Chattisgarh, Andhra Pradesh, Uttarakhand and Uttar Pradesh. In addition, Ericulture is practiced in China, Brazil, Russia, Thailand, Philippines, Indonesia, Malaysia, Bolivia, Ethiopia, French, Egypt, Italy etc. Eri silkworm feeds primarily on castor leaves, but sufficient castor leaves are not available throughout the years for commercial rearing. Therefore, Kesseru (Heteropanax fragrans Seem) is used as an alternative food plant during the scarcity of castor leaves. Depending upon food preference and rearing performance of both wild and cultivated silk worms, Kesseru ranks next to castor. Kesseru (Heteropanax fragrans) belongs to the family Araliaceae and it is soft wooded perennial tree grown in plain as well as hilly tracts of northeastern India. Since, it is a perennial plant, the cost of cultivation and leaf yield potentiality is better than Castor. The productive life of Kesseru is more than 25 years and annual leaf yield per hectare is found almost 20-25 MT from a properly maintained farm. Moreover, Kesseru plant is less susceptible to disease and pests...

27 Apr

Posted at 10:34h in Crop Cultivation
D K Gogoi 28 views

सिल्‍क कीट के मेजबान पौधे अरण्डी की खेती  Northeastern region of India is rich in diversity of sericigenous insects and their host plants, out of which, four types namely Muga (Antheraea assamensis), Eri (Samia ricini), Oak tasar (Antheraea proylei) and Mulberry (Bombyx mori) silkworm have been commercially exploited for silk production.  The Eri silkworm is multivoltine and polyphagous sericin producing insects. Eri culture is a traditional agro-based small scale industry, primarily practiced to meet the partial need of warm clothing. Moreover, eri pupae are popular as delicacy among the tribal people of this region. Proximate analysis of pupa showed that it contains 55-60% protein, 25-30% lipid, 4.96% fiber, and other substances, e.g. hormones, trace elements and vitamins, thus indicating that it could be a good protein source-for various purposes (Sharma, 2010). Eri silkworm significantly contributes to the Indian commercial silk production which is mostly confined to the Brahmaputra valley of Assam in the tribal inhabited districts. Approximately, 1.3 lakh families with plantation area of 26000 hectares are involved in ericuluture in northeastern region of this country. Annual production of eri raw silk has significantly increased from 974 MT in 1999-2000 to 2460.50 MT in 2009-10. It is also practiced in few districts of the neighbouring states mainly Meghalaya, Nagaland, Manipur and Arunachal Pradesh....