Herbicide and crop rotation effects on the weed complex
Doll, Jerry D.
Herbicide and crop rotation effects on the weed complex - Cali, CO Centro Internacional de Agricultura Tropical (CIAT) s.f. - 8 p
A 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
Herbicides
Rotational cropping
Maize
Zea mays
Glycine max
Atrazine
Alachlor
Linuron
Weed control
Leptochloa
Echinochloa colona
Eleusine indica
Amaranthus dubius
Portulaca oleracea
Ipomoea
Euphorbia
Cucumis melo
Herbicidas
Rotación de cultivos
Maíz
Zea mays
Glycine max
Atrazina
Alacloro
Linuron
Control de malezas
Leptochloa
Echinochloa colona
Eleusine indica
Amaranthus dubius
Portulaca oleracea
Ipomoea
Euphorbia
Cucumis melo
CIAT Editor Technical reports Informes técnicos Malezas y escarda Weeds Other Publications
66951
Herbicide and crop rotation effects on the weed complex - Cali, CO Centro Internacional de Agricultura Tropical (CIAT) s.f. - 8 p
A 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
Herbicides
Rotational cropping
Maize
Zea mays
Glycine max
Atrazine
Alachlor
Linuron
Weed control
Leptochloa
Echinochloa colona
Eleusine indica
Amaranthus dubius
Portulaca oleracea
Ipomoea
Euphorbia
Cucumis melo
Herbicidas
Rotación de cultivos
Maíz
Zea mays
Glycine max
Atrazina
Alacloro
Linuron
Control de malezas
Leptochloa
Echinochloa colona
Eleusine indica
Amaranthus dubius
Portulaca oleracea
Ipomoea
Euphorbia
Cucumis melo
CIAT Editor Technical reports Informes técnicos Malezas y escarda Weeds Other Publications
66951