Effect of Kharif rice establishments on various rice fallow crops with different irrigation systems on yield, water use efficiency and system productivity

Abstract

Crop performance in rice fallows was greatly affected by kharifrice establishment and agro techniques during rabi. Objective of the study to identify alternate potential crops to rice in order to intensify rice fallows in irrigation command area. A field experiment was conducted in Vertisolat Agriculture Research Station, Dhadesugur, Karnataka during kharif and rabi 2018-19. Experiment was laid out in split-split with thirteen replications in kharif and three replications in rabi. Treatments comprised of transplanted rice(TPR)and direct seeded rice (DSR) establishment methodsin kharif, while drip and surface irrigation methods for pulses in rabias sub factor and different pulses are as sub-sub plots. Results indicated that there was no significant yield difference between TPR and DSR in kharif. Drip irrigation had significant effect on yield and WUE over surface irrigation for crops grown in rice fallows. Whereas, DSR-cowpea recorded significantly greater rice equivalent yield (REY) (5140 kg ha-1) system productivity (44.6 REY kg ha-1 day-1).