Erzurum ili fiğ (Vicia sp.) ekim alanlarında görülen yabancı otlar, yoğunlukları ve rastlama sıklıkları

This study was carried out in order to determine the species, density and frequency of weeds of vetch in Askale, Center, Pasinler and Ispir-Pazaryolu districts in Erzurum between the years 2009 and 2010 in vetch fields. According to the results, 89 different weed species belonging to 76 genus and 31 families (1 cryptogamae, 14 monocotyledoneaus and 74 dicotyledoneaus) were identified. The densities of these weeds varied between 1-392 square meter and the average weeds per square meter was detected as 57.64 plant/m2. The most wide spread species were Chenopodium album L. in Erzurum Askale (14.52 plant/m2), Central (11.87 plant/m2) and Ispir-Pazaryolu (6.09 plant/m2) districts; Amaranthus retroflexus L. in Pasinler (12.07 plant/m2) districts of Erzurum. The frequency of weeds species were C. album in Central (83.33%) and Askale (%85.19); Convolvulus. arvensis L. in Pasinler (85.19%) and Ispir-Pazaryolu (77.14%) districts of Erzurum.