Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges &
Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
formula: 1. Percent increase in yield = [(Yield under demonstration - Yield under Existing
practices)/ Yield under Existing practices)] x 100 2. Technology gap = Potential yield - Yield
under demonstration, 3. Extension gap = Yield under demonstration - Yield under Existing
practices 4. Technology index = [(Potential yield - Yield under demonstration)/Potential yield)]
x 100.
Results
The data pertaining to the yield, percent increase in yield, technology gap, extension gap and
technological index is presented in Table 1 and data related to economic impact of improved
varieties of Pea is tabulated in Table 2.
Yield, Percent increase, Technology gap, Extension gap and Technological index
The results obtained from the present study revealed that the average yield under demonstration
(90 q/ha) was much higher than the existing/farmer’s practices (60.66 q/ha) and the average
percent increase in the demonstration yield over the farmer’s practice was around 48.29%
which might be due to the higher yield potential of the improved varieties used in the
demonstration. The average technology gap observed was around 23.33 q/ha which might be
due to the varied climatic conditions, difference in status of soil fertility and local farm
management practices. The results were in accordance with the findings of Singh et al. 2019
and Shikha et al. 2021 in the onion crop. The average extension gap was 29.33 q/ha which
might be due to the lack of availability of high yielding varieties to the farmers and lesser
scientific technologies followed in the cultivation practices. The average technology index was
observed to be around 19.99% which might be due to the prevalence of frost damage, cold
waves, several diseases and insect pest infestations.
Economic analysis
Cultivation of improved varieties of vegetable pea (Arkel and PSM-3) led to the higher average
net returns i.e., 48618 Rs. / hectare as compared to the farmer’s practices (26146 Rs./hectare).
While the average Benefit: Cost ratio was also observed higher in case of improved varieties
i.e., 2.09 when compared to existing practices (1.68) which might be due to the higher yield
potential of the demonstrated improved varieties of vegetable Pea.
Conclusion
The results obtained from the present study revealed that the demonstration of improved
varieties of Pea produced significant positive results in terms of yield and economics of Pea
crop. These positive results were obtained due to the timely technological and site-specific
interventions provided to the farmers which ultimately lead to the increase yield and enhanced
farm productivity. It was also observed that the higher returns can also be obtained by early/offseason
sowing and harvesting of Pea when there is unavailability of Pea from plains in the
Institutional and policy innovations for accelerated and enhanced impacts
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