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Mustard is a major rabi oilseed crop in Kota district of Rajasthan. To demonstrate production potential of improved agro-techniques of mustard crop, cluster front-line demonstrations were conducted during rabi 2016-17 to 2018-19 on selected farmer fields of the Kota district. Technological interventions demonstrated based on technological gap analysis consisted of varieties NRC HB-101 & Giriraj, Seed treatment with metalaxyl @ 6.0 g kg -1 seed and imidacloprid48 FS @ 6 ml kg -1 seed, soil treatment with Trichoderma viride @ 2.5 kg ha -1 , sowing of crop in row of 30 cm apart, optimum seed rate @ 4 to 5 kg ha -1 , recommended doses of fertilizers (NP @80:40 kg ha -1 , sulphur @ 25 kg ha -1 and zinc sulphate@ 25 kg ha -1 ) and need based plant protection measures. A perusal of three years data revealed that application of improved technologies resulted in substantially higher mustard seed yield with mean seed yield of 2099 kg ha -1 which represents 24.61 per cent yield enhancement over local check (1685 kg ha 1 ). Demonstrated techniques fetched average net returns of Rs 54467 ha -1 with B:C ratio of 3.08, higher in comparison to local practice (Rs 41192 ha -1 , B:C ratio 2.75). An average additional return of Rs.13275 ha -1 was obtained due to demonstrated technologies with incremental B:C ratio of 5.07. Yield gap analysis showed extension gap in the range of 376 to 437 kg ha -1 , emphasizes the need for transferring the feasible improved technologies among farmers to bridge the wide extension gap. Technology gap values observed to be in the range of 344 to 784 kg ha -1 and technology index in the present study varied between 13.76 to 28.51 per cent and averaged 21.04 per cent.

Enhancement of Mustard (Brassica juncea) Productivity and Profitability through Front Line Demonstrations in Kota district of Rajasthan