Herbicides evaluation for barnyard grass ( Echinochloa ssp. ) control in corn ( Zea mays) cultivated on rice area

Abstract

Two experiments with corn were devised to evaluate control of barnyard grass (Echinochloa spp.) by herbicides, and were carried out on a rice field. Corn plants were grown preceded by rice in one and corn in the other experiment. In both experiments Atrazine was superior in control than EPTC, which produced better control than the control. In a sequence rice-corn, grain production was higher in Atrazine than EPTC treated plots by 79% and 142% in the sequence corn-corn. Grain production in control plots was very low. Atrazine totally whereas EPTC only gave partial control in either sequence. Infestations of barnyard gross and other weeds in corn fields were reduced by previously controlling them in rice and corn experiments carried out in the same area.