BANDI, A GAJAYAKUMAR, M Y2017-02-232017-02-232008-02TH-9201http://krishikosh.egranth.ac.in/handle/1/5810002370Experiments on “Performance of rice genotypes under different methods of cultivation and combination of organic sources of nutrients” were carried out during kharif 2001 and summer 2002 on farmer’s field at Rajavanthi village, Pavagada taluk, Tumkur District. Two field experiments were conducted with direct seeding and transplanting methods. The results of direct seeded rice revealed significantly higher grain yield and straw yield were recorded with KRH-2 during both the seasons (7.00 and 6.61 t ha-1; 10.08 and 9.21 t ha-1, respectively) as compared to Hamsa (5.04 and 4.66 t ha-1; 7.88 and 7.21 t ha-1, respectively). Same trend was observed in number of productive tillers m-2 (428 and 372, respectively), number of grains panicle-1 (140.1 and 129.3, respectively), 1000 grain weight (24.5 and 24.3g, respectively) and harvest index (0.40 and 0.41, respectively) as compared to Hamsa. Among different fertility management practices, 150 kg N supplied through green manure, FYM and poultry manure (Fm7) recorded significantly higher grain yield during kharif season (6.94 t ha-1) but during summer season 100 kg N supplied through green manure, FYM and poultry manure (Fm5) recorded significantly higher grain yield (6.03 t ha-1). Significantly higher nutrient uptake was recorded with KRH-2 during both the seasons (196.7 and 171.3 kg N ha-1; 33.7 and 30.8 kg P2O5 ha-1 and 171.7 and 145.4 kg K2O ha-1, respectively) as compared to Hamsa. Net income and B:C ratio were significantly higher with KRH-2 during both the seasons (Rs.20482 and Rs.18352, respectively; 1.43 and 1.26, respectively). Among different fertility management practices, 100 kg N supplied through green manure, FYM and poultry manure recorded significantly higher N, P2O5 and K2O uptake and also resulted in significantly higher net returns and B:C ratio. The results of the experiment-II (transplanted rice) revealed similar results in direct seeding. Significantly higher grain yield was recorded with KRH-2 during both the seasons (7.32 and 6.75 t ha–1, respectively) as compared to Hamsa (5.30 and 4.62 t ha–1, respectively). Similar trend was recorded in number of productive tillers hill-1 (10.02 and 9.16, respectively), number of grains panicle-1 (147.8 and 133.1, respectively), straw yield (11.43 and 10.55 t ha–1, respectively) and harvest index (0.39 and 0.39, respectively) as compared to Hamsa. Among different fertility management practices, application of 150 kg N through green manure, FYM and poultry manure (Fm7) produced significantly higher grain yield (7.26 t ha–1) during kharif season but in summer season, 100 kg N supplied through green manure, FYM and poultry manure (Fm5) recorded significantly higher grain yield (6.20 t ha–1). Genotype KRH-2 recorded significantly higher nutrient uptake during both the seasons (219.5 and 202.6 kg N ha–1; 39.1 and 35.6 kg P2O5 ha-1; 187.8 and 175.1 kg K2O ha–1, respectively) as compared to Hamsa. Similar significant results were observed with net income as well as B:C ratio. Among different fertility management practices, 100 kg N supplied through green manure, FYM and poultry manure or groundnut cake (Fm5 and Fm6) recorded significantly higher N, P2O5 and K2O uptake and also resulted in significantly higher net returns and B:C ratio.ennullThesis