Year: 2024 | Month: Sept & Dec | Volume 11 | Issue 3&4

Multilocational Evaluation of Early Post-emergence Herbicide Application on Weed Control, Yield and Economics of Transplanted Rice (Oryza sativa L.) through Front-line Demonstration

Sarthak Pattanayak Dibyendu Mondal Bishnupada Giri Surya Narayan Mishra Laxmipriya Pradhan2 Dipsikha Paramjita1 Pravat Kumar Roul4 Prasannajit Mishra Amaresh Khuntia Satyamaya Satapathy Priyanka Das and Sumit Ray
DOI:10.30954/2394-8159.02.2024.5

Abstract:

Climate change provides substantial problems to world agriculture, especially for key crops like rice (Oryza sativa L.). Rising temperatures, variable rainfall, and altered weed dynamics have made crop-weed competition more intense, demanding better weed management measures. Weeds severely lower rice yields by competing for key resources, and hand weeding is both labour-intensive and inefficient. Early post-emergence herbicide spraying has emerged as a viable option, delivering excellent weed control while improving crop development and production. Hence considering the following a frontline demonstration was conducted at farmers’ field of Puri, Sundargarh and Bolangir district of Odisha during kharif 2023 to compare demonstration of Post emergence application of Cyhalofop butyl + Penoxulam @ 135 g ai/ha at 20 DAT with farmers practice of pre emergence application of Pretrilachlor @ 0.5 kg ai/ha, where, the demonstration treatment recorded highest ear bearing tillers (340 nos. /m2 in Puri; 348 nos. /m2 in Sundargarh and 346 nos. /m2 in Bolangir district), grains per panicle (124 nos. in Puri; 122 nos. in Sundargarh and 122 nos. in Bolangir district), grain yield (43.3 q/ha in Puri; 44.2 q/ha in Sundargarh and 44.1 q/ha in Bolangir district) and benefit cost ration (1.78 in Puri; 1.79 in Sundargarh and 1.77 in Bolangir district).



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* Sarthak Pattanayak * Dibyendu Mondal * Bishnupada Giri * Surya Narayan Mishra * Laxmipriya Pradhan2 * Dipsikha Paramjita1 * Pravat Kumar Roul4 * Prasannajit Mishra * Amaresh Khuntia * Satyamaya Satapathy * Priyanka Das and Sumit Ray

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* Sarthak Pattanayak * Dibyendu Mondal * Bishnupada Giri * Surya Narayan Mishra * Laxmipriya Pradhan2 * Dipsikha Paramjita1 * Pravat Kumar Roul4 * Prasannajit Mishra * Amaresh Khuntia * Satyamaya Satapathy * Priyanka Das and Sumit Ray

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