Evaluation of pre-emergence herbicides and their application methods for weed control in soybean

Four pre-emergence herbicides (pendimethalin @ 1.48 kg ai/ha, oxadiazon @ 0.45 kg ai/ha, trifluralin @ 0.75 kg ai/ha and isoproturon @ 1 .0 kg ai/ha) were tested with three different methods of application, i.e., spray, sand mix broadcast and soil incorporation during spring 1992 and 1993 at NARC, I...

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Bibliographic Details
Published in:Pakistan journal of biological sciences 1999-10, Vol.2 (4), p.1296-1298
Main Authors: Khan, M.A, Shah, S.M, Mirza, M.Y. (National Agricultural Research Centre, Islamabad (Pakistan). Oilseed Research Programme)
Format: Article
Language:English
Subjects:
APLICACION EN PREEMERGENCIA
APPLICATION A LA VOLEE
APPLICATION EN PREEMERGENCE
AXADIAZON
BROADCASTING
DESHERBAGE
DISTRIBUCION A VOLEO
ENFOUISSEMENT
ENTERRADO
ESCARDA
GLYCINE MAX
HERBICIDAS
HERBICIDE
HERBICIDES
INCORPORATION
MALEZAS
MAUVAISE HERBE
OXADIAZON
PENDIMETALINA
PENDIMETHALIN
PENDIMETHALINE
PREEMERGENCE APPLICATION
PULVERISATION
PULVERIZACION
SPRAYING
TRIFLURALIN
TRIFLURALINA
TRIFLURALINE
WEED CONTROL
WEEDS
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Summary:Four pre-emergence herbicides (pendimethalin @ 1.48 kg ai/ha, oxadiazon @ 0.45 kg ai/ha, trifluralin @ 0.75 kg ai/ha and isoproturon @ 1 .0 kg ai/ha) were tested with three different methods of application, i.e., spray, sand mix broadcast and soil incorporation during spring 1992 and 1993 at NARC, Islamabad. A total of 12 weed species were recorded. The lowest weed density and week biomass was recorded in pendimethalin treatment. Highest plan height and number of pods per plant were obtained from weed free treatment. No negative effect on the germination and growth of the crop was observed. Pendimethalin proved to be the best herbicide for weed control in soybean applied by soil incorporation method. Highest grain yield (1523 kg ha-1) was obtained from weed free treatment followed by pendimethalin (1475 kg ha-1) while the lowest yield (1127 kg ha-1) was produced in weedy check.
ISSN:1028-8880
DOI:10.3923/pjbs.1999.1296.1298