Herbicide and crop rotation effects on the weed complex

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dc.creatorDoll, Jerry D.
dc.creatorPiedrahíta Castañeda, Wilson
dc.date1981
dc.date2016-02-29T17:11:02Z
dc.date2016-02-29T17:11:02Z
dc.date.accessioned2026-06-27T14:36:30Z
dc.descriptionA four-season trial was conducted using continuous maize (Zea mays L.) and soybeans (Glicine max (L.) Merr.) with the continuous use, rotation or combination of various herbicides to determine weed species shifts. No weed species increased in maize treated for four seasons with atrazine (2-chloro-4-(Etylamino)-6(Isopropylamino)-2-triazine) or the combination atrazine + alachlor (2-chloro-2`, 6` -diethyl-N-(methoxy-methyl)acetanilide). Four seasons of alachlor allowed a 6 and 21 percent increase in broadleaf weeds in maize and soybeans, respectively, while maintaining excellent grass weed control. In soybeans a 21 percent increase in broadleaf weeds occurred after four seasons of linuron (3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea). Linuron combined with alachlor gave the best weed control in soybeans while the rotation of herbicides was less effective. In both crops, two hand weedings for four seasons tended to reduce the weed population the following year
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/71462
dc.identifier.urihttp://hdl.handle.net/123456789/83063
dc.languageen
dc.publisherInternational Center for Tropical Agriculture
dc.rightsOpen Access
dc.sourceDoll, Jerry D.; Piedrahita Cañola, Wilson. 1981. Herbicide and crop rotation effects on the weed complex. Centro Internacional de Agricultura Tropical (CIAT), Cali, CO. 8 p.
dc.subjectherbicides
dc.subjectrotational cropping
dc.subjectmaize
dc.subjectzea mays
dc.subjectglycine max
dc.subjectatrazine
dc.subjectalachlor
dc.subjectlinuron
dc.subjectweed control
dc.subjectleptochloa
dc.subjectechinochloa colona
dc.subjecteleusine indica
dc.subjectamaranthus dubius
dc.subjectportulaca oleracea
dc.subjectipomoea
dc.subjecteuphorbia
dc.subjectcucumis melo
dc.subjectherbicidas
dc.subjectrotación de cultivos
dc.subjectmaíz
dc.subjectatrazina
dc.subjectalacloro
dc.subjectcontrol de malezas
dc.titleHerbicide and crop rotation effects on the weed complex
dc.typeReport

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