Control of voluntary sunflower plants in maize crop
Suzbijanje samoniklog suncokreta u usevu kukuruza
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The objectives of the present research were to determine the effect of a single application of herbicides used in maize on voluntary sunflower plants. The field experiments were con ducted in maize field with voluntary sunflower plants. Their density ranged from 5-30 plants/m2. In the early treatments up to four leaves stage of maize were applied: 2,4-D + Atrazin SC; 2,4-D estar + Starane 250; 2,4-D estar; Banvel 480; Banvel 480 + Deltazon; Banvel 480 + atrazin and in later treat ments up to six to eight leaves of maize: Motivel + Calisto; Cambio; Lumax; Calisto + Gesaprim; Calisto; Grid + Esteron; Tarot + Peak; Motivel + Cambio; Motivel + Peak; Motivel + Banvel; Equip + Esteron; Equip + Banvel; Equip + Peak; Grid; Grid + Esteron; Tarot + Cambio; Tarot + Calisto; Tarot plus + Murtonik; Lumax; Peak and Ring + Atrazin Sc. In early treatments voluntary sunflower plants were in cotylledon stage up to first leaves pair stage and used herbicides were 100% effective, but 15 days after treatme...nts retrovegetation was expressive. In later treatments voluntary sunflower plants were in cotylledons up to three leaves pairs. Used herbicides were 100% effective only in a young plants (up to first leaves pair stage) older plants were injured but survived.
Suzbijanje samoniklog suncokreta u usevu kukuruza je problem koji se javlja u proizvodnji, jer usled nepravilnog plodoreda dolazi do ovakve smene useva. Ovaj problem se može veoma uspešno rešiti, ako se vreme primene herbicida prilagodi fazi razvoja gajenog useva i samoniklog suncokreta.
Keywords:voluntary sunflower plants / maize / herbicides / kukuruz / samonikli suncokret / herbicidi
Source:Biljni lekar, 2006, 34, 1, 47-52
- Poljoprivredni fakultet - Departman za zaštitu bilja i životne sredine "dr Pavla Vukasovića", Novi Sad