International Journal of Agriculture Extension and Social Development

author(s)
Dr. M Usha, Dr. NVVS Durga Prasad, Dr. G Ramesh, M Jahnavi and Dr. Sahaja Deva

abstract
The research was carried out between 2016 and 2022. Demonstrations implemented in KVK operated villages of Prakasam district were selected purposively. A total of 120 farmers (30 redgram, 30 blackgram, 30 chilli and 30 maize farmers) were selected from 12 villages. Most of the respondents selected for the study were age old (60.00%) with elementary school education (42.50%) having small farm holding size (55.83%) with medium level of farm experience (49.6%) extension contact (46.67%), social participation (45.00%), scientific orientation (65.84%) and medium level of annual Income (60.83%). The chosen trials were carried out in farmers' fields in accordance with the advice of Krishi Vigyan Kendra, Darsi. Mean percentage increase in yield over check for three consecutive years was 35.65% for redgram (2016–17, 2017–18, and 2018–19), 27.27% for blackgram (2018–19, 2019–20, and 2020–21), 8.89% for chilli (2017–18, 2018–19, and 2020–21), and 18.02 percent for maize (2018–19, 2019–20, & 2020–21. Redgram local varieties and LRG 41 were swapped out for LRG 52, while local varieties in blackgram were swapped out for TBG 104 in the demonstration cluster. Areas with LRG 52 showed significant creep from 100 ha to 16000 ha, whereas the TBG104 blackgram variety cultivating areas to treble from 150 ha to 15000 ha. Likewise, the execution of demonstrations resulted in an increase in the area under maize cultivation from 15 ha to 210 ha and the area under chili crop from 50 ha to 250 ha.