Growth, Yield and Economics of Rice (Oryza sativa L.) As Influenced by Different Establishment Methods and Nutrient Management Practices

Abstract

The field research was carried out at the Zonal Agricultural Research Station, Vishwesharaiah Canal Farm, Mandya, during the 2018 kharif season. The experiment was designed as a split plot with three replications. In the main plots, the treatments included semi-dry, drum seeding, and transplanting methods of establishment, as well as five nutrient management practises in the subplots. Rice production may have increased in recent decades due to the adoption of high-yielding cultivars, the use of chemical fertilisers, and the expansion of irrigated land. When comparing different establishing procedures, statistical analysis revealed that growth and yield parameters including LAI at 60 DAS, plant height, dry matter production at harvest, panicles m^-2, panicle weight, test weight, grain, and straw yields observed were comparable. Furthermore, when compared to the other nutrient management practises, the application of 150% RDIF resulted in significantly higher growth and yield parameters. Moreover, semi-dry and drum seeding of rice produced a higher B:C ratio (2.15) than transplanting rice (2.10). Likewise, 150% RDIF had a higher B:C ratio (2.37), but it was closely followed by 100% RDIF (2.22).