Vol. 10, Issue 11 (2021)

Author(s):
Chetna Sinha, Dr. Sunil Kumar, Ritu Rani, Neha Singh Kashyap and Ashwan Jaiswal

Abstract:
A field experiment was conducted on “Identification of profitable, resource efficient and sustainable rice based cropping system for Chhattisgarh plains under irrigated condition” at the Research cum Instructional Farm, I.G.K.V., Raipur (Chhattisgarh) during the kharif, rabi and summer season of 2018-2019 and 2019-2020 to study the energetics of winter crops under rice (Oryza sativa L.) based cropping sequences in irrigated condition of Chhattisgarh plains. Results revealed that energy output, net energy and energy intensity was found significantly higher with Wheat grown in rice-wheat-dhaincha (T1) cropping system recorded significantly maximum energy output and net energy during 2018-19, which was comparable to sweet corn grown in rice – sweet corn - cowpea (v) (T6), while during 2019-20 and on mean basis, sweet corn grown in rice – sweet corn - cowpea (v) (T6) recorded significantly highest energy output and net energy among the all rabi crops, However, it was at par with rice-wheat-dhaincha (T1) on mean basis. Rice – cabbage – green gram (T4) recorded lowest energy output and net energy during both the years and on mean basis. Significantly highest energy intensity was recorded in wheat grown as a rabi crop in rice-wheat-dhaincha (T1) cropping system over rest of the rabi crops during both the years and on mean basis. Rice – cabbage – green gram (T4), recorded the lowest energy intensity during 2018-19. Similarly, rice - onion + coriander - cowpea (s) cropping system recorded lowest energy intensity during 2019-20 and on mean basis. Significant influence on energy output: input ratio during both the years and on mean basis. Sweet corn grown in rice – sweet corn - cowpea (v) (T6) recorded significantly higher energy output: input ratio which remained comparable to each other during both the years and on mean basis. However it was at par with rice-wheat-dhaincha (T1) and rice – sweet corn – cluster bean (T3) during 2018-19. Rice – cabbage – green gram (T4) recorded the lowest energy output: input ratio during both the years and on mean basis. Significantly highest energy use efficiency was recorded in rice – sweet corn - cowpea (v) (T6), over rest of the rabi crops during both the years and on mean basis. However it was at par with rice – sweet corn – cluster bean (T3) during 2018-19. Rice – wheat – dhaincha (T1) recorded lowest energy use efficiency during 2018-19. Similarly, rice – safflower – cowpea (f) (T7) recorded the lowest energy use efficiency during 2019-20 and on mean basis. Significantly highest specific energy was recorded in rice-wheat-dhaincha (T1) over rest of the rabi crops during both the years and on mean basis. However, it was at par with rice – safflower – cowpea (f) (T7) during 2019-20. Nevertheless, lowest specific energy was recorded in rice - onion + coriander - cowpea (s) cropping system during both the years and on mean basis.