Effectiveness of Rainfall for Major Crops Grown under the Canal Command Areas of Taliperu Medium Irrigation Project in Telangana, India

Aim: The aim of this study was to estimate the effectiveness of rainfall for various crops grown in the commands of Taliperu medium irrigation project in the Telangana state of central agro-climatic zone of southern India. Study Design: Rainfall data of Taliperu medium irrigation project was collected from 2017-18 to 2021-22 and analyzed to know its effectiveness on different crops grown during Kharif and Rabi seasons. Methodology: The USDA-SCS method was used to estimate the effectiveness of rainfall for various crops grown in the commands of Taliperu medium irrigation project. Results: During Kharif season, the effective rainfall for Paddy were found to be 201 and 200 mm respectively under the commands of RFMC and LFMC of Taliperu. Also, during Rabi season, the effective rainfall were 28 and 29 mm, respectively under the commands of RFMC and LFMC of Taliperu. The effective rainfall for Cotton and Chillies under the commands of LFMC of Taliperu project were 236 and 58 mm. Conclusions: Paddy has the highest effectiveness of rainfall percent among all the crops in all cases. On an average, effectiveness of rainfall of the Paddy in Kharif season was 23 and 24% under the commands of RFMC and LFMC and 70% in Rabi season in commands of Taliperu. For Cotton and Chillies, per cent of effective rainfall was equal to or higher than 20% in the commands of LFMC of Taliperu medium irrigation project.