Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges &
Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
other climatic data was downloaded from NASA (https://power.larc.nasa.gov). Loamy
textured soil is generally prevailing in the region (CGWB, 2014).
Results
Based on the assessment of rainfall data it is revealed that the annual rainfall in Baghpat
district varies between minimum of 245 mm (1987) to maximum of 1488 mm (1997) with an
average of 624 mm (1986-2020). The average number of rainy days varies between minimum
of 24 days (1997) to maximum of 56 days (1996) with an average of 40 days. The average
annual rainfall in Baghpat district showed a decreasing trend thus depicting quite a critical
condition from the cropping pattern point of view. The 1-day maximum rainfall over the
region showed a decreasing trend and the 1-d maximum rainfall varies between minimum of
27 mm (1987) to maximum of 273 mm (1994) with an average of 74 mm. The indicatorbased
analysis unveils the ill-effects of climate change over the region which calls for
adaptation of suitable approaches to cope and to render the impacts thus generated. Based on
the departure analysis of annual rainfall the drought year (50%) had been identified. Year viz., 1987, 1997, and 2014 had been identified
as drought year, 1999 as normal year and 1994 as flooded year. For depicting the average
CWR and IR, the average of 35 years (1986-2020) has been used for comparison with the
years identified based on departure analysis of annual rainfall.
As per ICAR-SBI, Coimbatore, there are four crop growth phases in sugarcane crop viz.,
germination phase (1-35 day), tillering phase (36-100 day), grand growth phase (101-270
day), and maturity phase (271 up to harvest) which require irrigation water at the interval of
7, 10, 7 & 15-days intervals in different phased respectively with the irrigation frequency of
41. Therefore, the cumulative crop water requirement and irrigation water requirement as per
the computation using CROPWAT software for sugarcane crop was 2442 mm and 1965 mm
respectively. The irrigation water requirement for drought, normal, flooded years is depicted
in table 1 and Figure 2 showed the variability in the irrigation water requirement (mm/yr).
Irrigation water requirement for sugarcane crop
Year Irr. Req. (mm/yr)
1987 (D*) 2232.9
1997 (D) 2159
2014 (D) 2084.8
1999 (N) 2012.9
1994(FL) 1953.2
Average 1965.1
Note: * D= drought year, N= normal year, FL= flooded year, average (1986-2020) year
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Climate resilient agriculture for risk mitigation