EN
The two-year field experiments (2008–2009) were carried out to determine the efficacy of propizochlor (Proponit 720 EC) applied alone and tank-mixtures of propizachlor with other herbicides to weed control and selectivity in maize. Treatments were applied pre-emergence and early post-emergence at the 1–2 leaf stage of maize. Maize plants showed good tolerance to all pre-emergence herbicide treatments. Post-emergence treatments with propizachlor applied alone and in mixture with other herbicides caused phytotoxic symptoms on maize plants. The results showed that biological efficacy of propizochlor mixtures with different herbicides applied at lower doses was satisfactory against grass and broadleaf weeds in maize. In general, propizochlor mixture provided higher control of weeds (e.g. Chenopodim album, Centaurea cyanus, Galium aparine, Stellaria media, Viola arvensis, Echinochloa cruss-galii, Polygonum sp.) than propizochlor used alone. Using some combinations of pre- and post-emergence herbicide mixtures at lower doses can be a good strategy for decreasing cost of treatments and provide a satisfactory effect of weed control in maize.