Ispitivanje fitotoksičnosti i efikasnosti acetohlora sa dihlormidom u kukuruzu

The aim of this study was to determine the phytotoxicity and efficacy of the herbicide acetochlor with dichlormid (preparation ACETOCHLOR 768 + DICHLORMID 128 EC) and a possibility for its application in a foliar control of broadleaf weeds in corn crops. In 2012 there was conducted a serie of trials in accordance with the standard EPPO method, to examine the efficiency of this preparation, on the Zemun Polje locality. The experiment included four treatments: two for efficacy (ACETOCHLOR 768 + DICHLORMID 128 EC 2,0 l/ha and 2,5 l/ha), one for phytotoxicity (ACETOCHLOR 768 + DICHLORMID 128 EC 5,0 l/ha) and one as a standard (ACETOGAL PLUS 2,5 l/ha). The product was applied after planting and before germination of corn and weeds. Acetochlor as a selective herbicide from the chemical group of chloroacetamide did not show any phytotoxicity to corn, if applied in recommended quantities and on the recommended application time. Acetochlor with di­chlormid showed very high efficacy in the control of weeds such as Echinochloa crusgalli, Setariaglauca, Sorghum halepense (s), Bilderdykia convolvulus, Chenopodium polysper­mum, Datura stramonium, Solanum nigrum and Stachys annua.Cilj ovog rada je bio da se utvrdi fitotoksičnost i efikasnost herbicida acetohlora sa dihlormidom (preparat ACETOHLOR 768 + DIHLORMID 128 EC) i mogućnost njihove primene za folijarno suzbijanje širokolisnih korova u usevu kukuruza. Tokom 2012. godine na lokalitetu Zemun Polje ispitivana je efikasnost ovog preparata izvođenjem poljskih ogleda u skladu sa standardnom EPPO metodom. U ogled je bilo uključeno 4 tretiranja: dva za efikasnost (ACETOHLOR 768 + DIHLORMID 128 EC 2,0 l/ha i 2,5 l/ha), jedan za fitotoksičnost (ACETOHLOR 768 + DIHLORMID 128 EC 5,0 l/ha) i jedan kao standard (ACETOGAL PLUS 2,5 l/ha). Preparat je primenjen posle setve, a pre nicanja kukuruza i korova. Acetohlor kao selektivni herbicid iz hemijske grupe hloracetamida, ne ispoljava fitotoksičnost prema kukuruzu, ako se primeni u preporučenim količinama i u preporučeno vreme primene. Acetohlor sa dihlormidom je pokazao veoma visoku efikasnost u suzbijanju korova kao što su: Echinochloa crusgalli, Setaria glauca, Sorghum halepense (s), Bilderdykia convolvulus, Chenopodium polyspermum, Datura stramonium, Solanum nigrum i Stachys annua