Performance of Various Hybrids and Fertility Levels on Yield Attributes, Yield and Economics of Hybrid Rice (Oryza sativa L.)

The present investigation was conducted at Agronomy Research Farm of Narendra Deva University of Agriculture and Technology, Narendra Nagar (Kumarganj), Faizabad for two years. Twenty one treatment combinations comprised of three levels of fertility (N₁₂₀ kg ha⁻¹, N₁₅₀ kg ha⁻¹ and ^P60^K60^P75^K75 kg ha⁻¹) with seven hybrids viz. (SHP 01, SHP 02, SHP 03, SHP 04, SHP 05, SHP 06 and ^N180^P90^K90 NDRH 2) were executed in split plot design keeping fertility levels in main plot with four replications. The soil of experimental plot was silty loam in texture with low in organic carbon and nitrogen, medium in phosphorus and high in potassium. The crop received normal recommended agronomic practices and plant protection measures. The highest grain and straw yield was recorded with N₁₈₀kg ha⁻¹, ^P90^K90 which remained at par with N₁₅₀ kg ha⁻¹ but significantly superior over N₁₂₀ kg ha⁻¹. Hybrid ^P75^K75^P60^K60 SHP 04 registered significantly higher values of grain, straw yield and nutrient uptake components over hybrids SHP 01, SHP 02, SHP 03, SHP 05 and SHP 06 and was found at par with NDRH 2 during both the years. The interaction effect of the fertility levels and rice hybrids was found non significant increase in grain yield of hybrid SHP 04 (71.37 q ha⁻¹). The highest net return of Rs. 45,082/- and Rs. 54,495/- and B:C ratio of 1.69 and 1.96 was recorded with SHP 04 fertilized with N₁₈₀ kg ha⁻¹.^P90^K90