Weed density, relative weed density, weed indices and yield of mustard (Brassica juncea L.) as influenced by planting geometry and weed management practices


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Authors

  • Rameti Jangir Department of Agronomy, Navsari Agricultural University, Navsari-396 450, Gujarat
  • L.K. Arvadia Department of Agronomy, Navsari Agricultural University, Navsari-396 450, Gujarat
  • Diksha Tajane Department of Agronomy, Navsari Agricultural University, Navsari-396 450, Gujarat
  • Lokesh Kumar Saini Department of Agronomy, Navsari Agricultural University, Navsari-396 450, Gujarat

Keywords:

Normal planting, Paired row planting, Relative weed density, Treatment/herbicide efficiency index, Weed control efficiency

Abstract

Field experiment was conducted to identify the best planting geometry and weed management practices for yield, quality and weed management in Indian mustard at Navsari Agricultural University, Navsari during rabi season of 2014-15. Experiment was laid out in randomized block design with factorial concept and replicated thrice. Mustard was sown with three planting pattern and five weed management practices. Significantly lowest number of all three types of weed population (monocots, dicots and sedges), maximum treatment efficiency index (TEI) were found with NP30×10 (P1 ), whereas maximum weed control efficiency (WCE) was recorded under PRP30×6×10 (P3 ). The highest crop growth rate (CGR) and leaf area index (LAI) of mustard was observed with NP30×10 (P1 ) during different periodical intervals. Significantly higher seed, biological and oil yield produced under NP45×10 (P2 ) which was increased by 15.14, 17.92 and 11.88% over P1 and it remained at par with P3 . Among the different weed management practices, minimum total weed density and maximum WCE and TEI was recorded with the application of Pendimethalin @ 1.0 kg ha-1 as PE fb Quizalofop - P - ethyl @ 0.04 kg ha-1 at 20 DAS fb HW and IC at 40 DAS (W4 ) at different intervals. Application of W4 , W3 and W2 noted with maximum CGR, LAI, seed yield, biological yield, oil content and yield. Under planting pattern NP30×10 (P1 ) response to applied weed control practices W4 was noted significant and with least numbers of total weeds.

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Submitted

2022-11-03

Published

2022-11-03

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Section

Articles

How to Cite

Weed density, relative weed density, weed indices and yield of mustard (Brassica juncea L.) as influenced by planting geometry and weed management practices. (2022). Annals of Agricultural Research, 43(3), 302-310. https://epubs.icar.org.in/index.php/AAR/article/view/129822