National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
A field experiment was conducted at Krishi Vigyan Kendra (KVK), South Tripura during the kharif season of 2013 and 2014 to study the influence of weed management practices on growth and yield of aerobic rice. The experiment consisting of twelve treatments was laid out in a randomized complete block design with three replications. The common weed flora found in the experimental field were Amaranthus viridis, Hedyotis corymbosa, Spilanthes acmella, Ludwigia parviflora, Cleome rutidosperma, Malvaestrum coromandalinum among the broad leaf weeds, Digitaria sanguinalis among grasses and Cyperus iria among sedges. Although hand weeding thrice at 15, 30 and 45 DAS recorded the lowest weed dry weight for all types of weed, higher values of growth parameters, yield and yield attributing parameters of upland rice but it was not economically viable. Among the various management practices, the treatment pendimethalin at 1.0 kg ha-1 at 2 DAS + bispyribac sodium at 25 g ha-1 at 20 DAS recorded the highest net return and return per rupee invested and appeared to be the most promising and remunerative weed management practice and followed by pendimethalin at 1.0 kg ha-1 at 2 DAS + one hand weeding at 30 DAS for direct seeded rice under Tripura condition.
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