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Advances in Crop Science and Technology

.: Home > Advances in Crop Science and Technology > 2014 > Volume 2 Number 4 > Mathukia RK 2 * , Dobariya VK 1 , Gohil BS 1 and Chhodavadia SK 1

Integrated Weed Management in Rabi Sweet Corn ( Zea mays L. var. Saccharata )

Mathukia RK 2 * , Dobariya VK 1 , Gohil BS 1 and Chhodavadia SK 1
1 Ph.D.Scholars Department of Agronomy, College of Agriculture, Junagadh Agricultural University, Junagadh-362001 Gujarat, India 2 Associate Research Scientist, Department of Agronomy, College of Agriculture, Junagadh Agricultural University, Junagadh-362001, Gujarat, India
Abstract :

A field experiment was conducted duringrabi 2010-11 at Junagadh (Gujarat, India) to find out most efficientand economical method of weed control in rabi sweet corn (Zea mays L. var. saccharata Sturt). The pre-emergence  (PRE) herbicides viz., atrazine, pendimethalin and oxadiargyl were combined either with hand weeding (HW) and interculturing (IC) or with post-emergence (POST) herbicide 2, 4-D (SS) to evolve integrated weed management. The weed flora of the experimental site constituted Digera arvensis, Cyperus rotundus, Brachiaria spp., Asphodelus  tenuifolius,  Indigofera  glandulosa,  Amaranthus  viridis,  Acanthospermum  hispidum,  Panicum  colonum,  Launaea  nudicaulis,  Euphorbia  hirta,  Chenopodium  album,  Portulaca  oleracea,  Dactyloctenium  aegyptium  and Celosia argentea. The results revealed that physical methods viz., weed free, HW and IC twice at 15 and 30 days after sowing (DAS) as well as integrated methods viz., atrazine @ 0.5 kg a.i. /ha as PRE+HW and IC at 30 DAS and pendimethalin @ 0.9 kg a.i. /ha as PRE+HW and IC at 30 DAS significantly enhanced growth and yield attributes ultimately higher cob and fodder yields over unweeded check. The treatments viz., weed free, HW and IC twice at 15 and 30 DAS, atrazine @ 0.5 kg a.i. /ha as PRE+HW and IC at 30 DAS, and pendimethalin @ 0.9 kg a.i. /ha as PRE+HW and IC at 30 DAS also recorded the lower weed population at 30, 60 DAS and at harvest, dry weight of weed at harvest with lower weed index and higher weed control efficiency and herbicidal efficiency index. These treatments were found economical by recording higher net returns and B: C ratio compared to unweeded check



Keywords :
Sweet corn; Zea mays L. var. saccharata Sturt; Atrazine; Pendimethalin; Oxadiargyl, 2, 4-D

Date Deposited : 05 Apr 2016 15:09

Last Modified : 05 Apr 2016 15:09

Official URL: http://www.esciencecentral.org/journals/archive-advances-in-crop-science-and-technology-open-access.php

Volume 2, Number 4, November 2014 , ISSN ISSN: 2329-8863

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