Cluster Frontline Demonstrations on oilseed crop had conducted at farmers’ fields in 210 ha area at 1235 farmers fi eld during 2016 - 2020 by Krishi Vigyan Kendra Ramgarh Jharkhand. The farmers were motivated and provide the capacity building training for adopting the mustard cultivation. The Cultivation practices comprising under CFLD viz., use of improved variety, line sowing, balanced application of fertilizers, weed and insect/pest management result revealed that average yield of mustard increased from 30.91% to 41.62% during the demonstration period from 2016-2020. The technology gap of yield was minimum as 3.83 q/ha during 2019-20 and maximum 7.80q/ha during the year 2016-17. Therefore, result indicated that decreasing the technology gap and increasing trend in yield gap for production and productivity in rice fallow area and farmers were cultivated the second crop in rabi season with residual moisture and lifesaving irrigation.

Keyword: Cluster frontline demonstration; Mustard; Yield increase; Technology intervention, Rice fallow area. Increasing the Production and Areas of Edible Oil Crop through Frontline Demonstration Approach in Rice Fallow Area .