Author(s):

HM Singh, JK Tiwari, TS Mishra and Divya

Abstract: Onion production and post harvest management problem and their solution studied with onion Growers of Samastipur, Muzaffarpur, Vaishali, Begusarai, Lakhisarai, Munger, Sheohar, East Champaran, Rohtash, Buxar, Bhojpur, Nalanda, Patna, Kaimur and Jamui district of Bihar state through planned Technology dissemination through demonstration (TDTD) were conducted on farmer’s field with Rabi onion variety Agrifound Light Red (ALR) with Trichoderma viride (TV) application in nursery sowing with seed treatment and spray since 2012-13 to 2018-19 for seven years. Result of study indicated good performance over check recorded since seven years and maximum percent over check was recorded 22.20%, technical gap was noticed 67.50 qt/ha with decreasing trend, maximum extension gap recorded 48.30 qt/ha while minimum technology index 11.50% in same year. The maximum grass return (Rs. 519427), net return (Rs. 438627) and B: C (6.42) ratio was also recorded highest in demonstration field (2014-15) due to maximum market price high as compare with all study year/ seasons.

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