Water Use and Productivity of Different Agricultural and Horticultural Crops and Rice and Maize-based Cropping Systems in an Intensively Cultivated Sub-watershed of Peninsular India

M. Uma Devi, M. Devender Reddy, A. Mani, D. V. Mahalakshmi, O. Bhavani
2020 International Journal of Current Microbiology and Applied Sciences  
The crop water requirement of different agricultural and horticultural crops (16 crops) was assessed during different season's viz., kharif, rabi and summer for four successive years in farmers field conditions. The water utilized and water productivity of rice -rice and maizevegetable cropping systems were studies at Wargal, Kothakunta sub -watershed, in Siddipet district, Telangana. The mean water used and water productivity of crops was estimated for kharif rice (13299 m3/ha and 0.457 kg m
more » ... ), rabi rice (14298 m3/ha and 0.463 kg m -3 ), maize (3472m3/ha and 1.607 kg m -3 ), sweet corn (3378 m3/ha and 1.812 kg m -3 ), cotton (5421m3/ha and 1.61 kg m -3 ), sunflower (9209 m3/ha and 0.051 kg m -3 ), tomato (drip irrigation) (5162 m3/ha and 1.544 kg m -3 ), tomato (surface irrigation) (11665 m3/ha and 1.376 kg m -3 ), bhendi (surface irrigation) (9302 m3/ha and 0.464 kg m -3 ), green chillies (surface irrigation) (7597 m3/ha and 2.22 kg m -3 ), French bean (surface irrigation) (kharif-3704 m3/ha and 0.99 kg m -3 , rabi-2846 m3/ha and 0.94 kg m -3 and summer-4972 m3/ha and 0.887 kg m -3 ), French bean (drip irrigation) (2626 m3/ha and 1.347 kg m -3 ), French bean (after paddy) surface irrigation (2751 m3/ha and 2.456 kg m -3 ), bush bean (surface irrigation) (6069 m3/ha and 0.62 kg m -3 ), bush bean (drip) (6088 m3/ha and 1.005 kg m -3 ), bush bean surface irrigation (after paddy field) (2404 m3/ha and 0.349 kg m -3 ), vegetable cow pea (drip irrigation) rabi (9713 m3/ha and 0.696 kg m -3 ), vegetable cow pea (drip irrigation) summer (4040m3/ha and 1.19 kg m -3 ), ridge gourd (drip irrigation) (5334 m3/ha and 1.413 kg m -3 ), cabbage (surface irrigation) (6802 m3/ha and 11.92 kg m -3 ), ), cucumber ( (drip irrigation) (kharif-3304 m3/ha and 1.599 kg m -3 , rabi-2241 m3/ha and 2.67 kg m -3 and summer-10048 m3/ha and 0.782 kg m -3 ), onion (surface irrigation) (2136 m3/ha and 2.676 kg m -3 ), potato (surface irrigation) (4386 m3/ha and 2.396 kg m -3 ), potato (drip irrigation) (4621 m3/ha and 3.509 kg m -3 ).The rice crop consumed a higher quantity of water than other crops. The cabbage cultivated during rabi 2009-10 under surface irrigation recorded the highest water productivity, while the lowest water productivity was recorded in sunflower during rabi 2011-12.Rice equivalent yield was worked out using prevailing crop market prices during 2009-12. Mean water productivity of different rice-rice and maize based cropping systems was found to be rice -rice (0.38 kg m -3 ), maize -potato (0.76 kg m -3 ), maize -tomato (0.86 kg m -3 ), maize-fallow -French bean (0.89 kg m -3 ), maize -vegetable cow pea (0.57 kg m -3 ), maize-fallow -bush bean (1.33 kg m -3 ) and maize -cabbage (2.31 kg m -3 ). The water productivity of maizevegetable cropping system was three times higher than that of ricerice cropping system. Therefore, from the present study maizevegetable cropping system was found to be the most viable cropping system under Wargal, Kothakunta sub -watershed for conservation of available water resources.
doi:10.20546/ijcmas.2020.910.153 fatcat:qja5hemrpvbofjgs422wbc5h2a