YATHISHA, K. P.2020-10-072020-10-072019-07-30Th-12299https://krishikosh.egranth.ac.in/handle/1/5810152776A field experiment was conducted during Kharif-2018 at Zonal Agricultural Research Station, V. C. Farm, Mandya. The experiment was laid out in RCBD emphasizing nine treatments and replicated thrice. The treatments were consisting of five pre-emergence herbicides (Atrazine, oxadiargyl, bensulfuron methyl + pretilachlor, pendimethalin and isoproturon), two post-emergence herbicides (Bispyribac sodium and ethoxysulfuron), hand weeding at 20 and 35 DAS and weedy check. Major weeds observed were Cyperus rotundus, Cynodon dactylon, Eleusine indica, Ageratum conyzoides, Parthenium hysterophorus and Commelina benghalensis. Among different herbicides, pre-emergence application of bensulfuron methyl + pretilachlor 6.6% G at 198 g a.i. ha-1 + hand weeding at 30 DAS recorded lower total weed density, weed dry weight, weed index and higher weed control efficiency (29.0 m-2, 15.65 g m-2, 84.0% and 91.57%, respectively) and registered significantly higher grain (3345 kg ha-1) and straw yield (4905 kg ha-1), which may be attributed to significantly higher plant height (97.3 cm), number of tillers (39.3 m-1) and total dry weight of plant (67.8 g hill-1) at harvest. The same treatment shown higher yield attributing characters viz., number of productive tillers (37.4 m-1), finger length (9.9 cm) and grain yield per plant (25.30 g) and this treatment also resulted in higher net returns (` 46,907 ha-1) and B:C ratio (2.48) and found to be most economical and comparable with the treatment intercultivation and hand weeding at 20 and 35 DAS in direct seeded finger millet.EnglishThesis