RICE YIELD GAPS IN SELECTED DISTRICTS OF TELANGANA: A STATISTICAL PERSPECTIVE
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Date
2021-01-07
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PROFESSOR JAYASHANKAR TELANGANA STATE AGRICULTURAL UNIVERSITY
Abstract
A Study on “RICE YIELD GAPS IN SELECTED DISTRICTS OF
TELANGANA: A STATISTICAL PERSPECTIVE” was carried out at Karimnagar,
Medak and Mahbubnagar districts of Telangana state for 30 years (1992 to 2021). The
main aim of this study was to simulate the potential yields of rice in selected districts
using crop simulation models like DSSAT and APSIM and to quantify the yield gaps.
The weather and soil information for this analysis was collected from NASA power
website and ISRIC website respectively. The potential yields simulated by DSSAT and
APSIM were in the range of 8533-7881 kg/ha and 10241- 9208 kg/ha respectively. In
this study it was observed that DSSAT model performed better then APSIM as DSSAT
model considers all the weather parameters but APSIM rely mostly on the rainfall
during simulation. Attainable yield data was collected from the ICAR-IIRR reports and
PJTSAU Vyavasaya panchangam. Average farmers yield for 30 years was collected
from DES (Directorate of Economics and Statistics), Telangana. Rice yield gaps were
quantified in the three selected districts. There was no much variation in the yield gap I
and we have noticed negative trends in yield gap II and total yield gaps. It has been
observed that, in Telangana the production of rice has increased over the years, still
there are yield gaps in rice. These gaps have to be filled so that productivity will be
boosted in the study area.
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D10958