EVALUATION OF HERBICIDES IN DIRECT SEEDED FINGER MILLET [Eleusine coracana (L.)]
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Date
2019-07-30
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UNIVERSITY OF AGRICULTURAL SCIENCES, GKVK BENGALURU
Abstract
A 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.