Yield Gap Analysis of Hybrid Rice: A Case Study in Kalyanpur Block of Samastipur District (Bihar)

The study based on primary as well as secondary data was carried out in four selected villages namely, Somnaha, Simria Bhindi, Kharsand and Madhurapur of Kalyanpur block of Samastipur district in Bihar. Primary data were collected from a sample of 60 farmers spread over the study area, constituting 20 marginal, 15 small and 25 big farmers who were selected using probability proportional to size method (PPS) for the study. The total Yield Gap in rice production was worked out as the summation of Yield Gap I (YG-I) and Yield Gap-II (YG-II), which was estimated as 47.02 q/ha on big size, 54.97 q/ha on small size and 62.9 q/ha on marginal size farms and on an average, it was 54.30 q/ha. On the whole, the estimated value of Index of Realized Potential Farm Yield (IRPFY) was found to be 88.68 per cent, whereas the Index of Realized Potential Yield (IRPY) was observed as 48.29 per cent. An overall Index of Yield Gap was estimated as 51.70 per cent. It may be inferred from the study that the proper utilization of recommended package and practices of hybrid rice along with the supply of quality inputs viz. seeds, fertilizers, irrigation and plant protection measures on different categories of farms may help reduce the yield gap of the crop on the one hand and raise the income of the cultivators on the other