Front line demonstration: An effective way of dissemination of technology of yard long bean in Dakshina Kannada district of Karnataka, India

Abstract

Front line demonstrations (FLD) on high-yielding yard-long bean variety Arka Mangala were conducted at KVK Dakshina Kannada during 2021-22, 2022-23, and 2023-24 with 30 farmers. The FLD was conducted with farmers’ active participation to disseminate improved yard-long bean technology to achieve production potential. The improved technology consisted of the incorporation of high-yielding variety, foliar spray of vegetable special (2 g/lit.), drenching of Arka Microbial Consortium (20 g/lit), balanced use of fertilizer application, integrated pests, and disease management. Front line demonstration data were recorded to Plant height (cm), No. of branches, Pod length (cm), No. of pods/plant and Yield q/ha as compared to the farmer’s local practice. The improved variety Arka Mangala results recorded the maximum green pod yield with 202.83 q/ha and 114.67 q/ha in the Local variety. In addition to the high yield of variety Arka Mangala, lower values of technology gap, extension gap, and index existed. The improved technology gave higher gross and net returns with a higher benefit-cost ratio in yard long bean compared to farmer’s practices. FLD made a positive and significant impact on Yard long bean yield compared to the local variety. Most of the ‘Low Yielding-Local Varieties’ would be replaced in adopted villages of Dakshina Kannada.