Field Evaluation of Pre-Emergence Application of Selected Herbicides for Okra Tolerance and Growth in Asaba, Nigeria

Christian Chukukaa Obiazi, Hassan Tijani-Eniola and Olalekan Wasiu Olaniyi

Asian Journal of Agriculture and Rural Development, 2020, vol. 10, issue 01

Abstract: Okra productivity is reduced by weed interference. Farmers rely on expensive and highly labour intensive manual weeding. Herbicides reduce labour involvement and cost of weed control. Few herbicides tagged for okra production are scarce. The key objectives of this study are to determine the tolerance of okra to some widely used herbicides and evaluate the growth performance of okra in the selected herbicides. The average phytotoxicity levels of each of the herbicides for 2013 and 2014 field trials were in the order of zero in pendimethalin at 2.0 kg a.i./ha, 4.2 in metholachlor+atrazine at 2.64 kg a.i./ha and 5.5 in atrazine at 3.0 kg a.i./ha, on a 0-10 scale. Okra stands establishment was (95.2%) in pendimethalin and (93.1%) in hoe-weeded plots, these were significantly greater than 62.8% and 56.9% obtained in metholachlor+atrazine at 2.64 kg a.i./ha and atrazine at 3.0 kg a.i./ha, respectively. Hoe-weeded plots had shoot dry weight of 7.9 g/plant which was similar to 7.3 g/plant obtained in pendimethalin treated plots; these were significantly greater than 4.1 g/plant obtained in plots that received atrazine. Pendimethalin which caused no phytotoxic effect on okra and provided enhanced stand establishment and growth comparable with hoe-weeded should be listed for okra production.

Keywords: Crop Production/Industries; Productivity Analysis (search for similar items in EconPapers)
Date: 2020
References: Add references at CitEc
Citations:

Downloads: (external link)
https://ageconsearch.umn.edu/record/342254/files/F ... aba%2C%20Nigeria.pdf (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:ags:ajosrd:342254

DOI: 10.22004/ag.econ.342254

Access Statistics for this article

More articles in Asian Journal of Agriculture and Rural Development from Asian Economic and Social Society (AESS) Contact information at EDIRC.
Bibliographic data for series maintained by AgEcon Search ().