Efficacy of Weed Management Practices on Weed Dynamics and Productivity of Blackgram
Lipi Meher, Satyananda Jena, Manoranjan Satapathy, Bishnupriya Patra
International Journal of Environment and Climate Change · pp. 77–84 · Published 9 Dec 2020
10.9734/ijecc/2020/v10i1230286Abstract
A field experiment was conducted during kharif 2018 at the Agronomy Main Research Farm, Odisha University of Agriculture and Technology, Bhubaneswar to study the effect of Integrated weed management in blackgram. The experiment was laid out in a randomized block design with a total of eight treatments replicated thrice. Important predominant grass, sedge and broad-leaved weeds found in the experimental field were Eleusine indica (12.6%), Cyperus rotundus (8.9%) and Celosia argentea (9.7%), respectively. Severe weed competition in kharif blackgram recorded a yield loss of 66.7% in this experiment. Post Emergence application of Imazethapyr @ 0.75 kg/ha at 120 Days after sowing followed by one Hand Weeding at 30 DAS recorded lowest weed density (25.33 no./m2), weed dry weight (38.98 g/m2); highest weed control efficiency (83.4%) and lowest weed index (7.0%) at harvest.
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