Özet:

ÖZET Araştırmada Erzurum çevresinde hububat tarlalart içerisinde problem teşkil eden yabancıotlar tesbit edilmiş ve bunlardan köy güçüren (Cirsiı.m anoense), tarla eşek marulu (Sonchus arveıısis) kıvırcık Iabada (Rumex crispus), yabani hardal (Sinop is arvensis) ve ak kazayağı (C/ıenopodium album) önemli görülerek yazlık arpa ı'e buğday içersinde mücadele: imkanlarl araştmlmıştır. Yuka"da adları zikredilen yabancı ol/al' çdiçi ailesi içersindeki boş iş gücünü kullanarak elle yolunduğu taktirde ekonomik olmaktadır. Diğer taraftan sonbaharda 25-30 cm. derinliğinde yapılan toprak işlemesi yabancı otlar/a mücadele yönünden ilkbaharda yapılana nazaran çok daha etkili olmuştıır. Köy göçüren mücadelesinde Banvel D (50-80-100-200 cc/dek) en yüksek tesiri göstermişse de, yazlık arpada fitotoksik etki meydana getirmiştir. Kıvırcık Iabada mücadelesinde çiçeklenmeden önce tatbik edilen amin, ak kazayoğuıda ise ester terkipli herbisiıler en fazla etkili olmuştur. Yabani hardal denemede kullamlan herbisitlere karşı hassas, tarla eşek marulu nisbeten mukavim olrak bulunmuştur. SUMMARY Researching of the control methods of some of the weeds that cause problem in spring barleyand spring wheat in Erzurum region. Around Erzurum a survey were planned on weeds which are problem in sumıner cereals. Canada thistle (Cirsium arvaense L. Scop), perennial sow thistle (Sonclıus arvensis L.), curied dock (Rume cripspus L.), chariock (Sinapsis arrensis L.) lamb's quarterks (CheI1Opodı: um album L.) are the destructive ones araund he~e. Their biology and the control methods were examined closely. Fall and spring- deep sod cultivations made by diskharrow taken as an alternative, herbieides were applied on these weeds. rII the investigation eleyen herbicides whieh had difTerent efTective su bstances were tested on them. These herbieides were when the wheat and barley were their 5-7 leaved stage, also in tbis stage the weeds were their 5-7 leaved stage, also in this stage the weeds were tripped by hand and their comparıson were made are indıcacated below. Weed problem in summer cereals, it will be economic if the handed by the members of the farıner's family by using their emthy hours. From the standpoint of the weed control in general fa Li cultivation is effective then the spring cultivation and it highers the summer wheat production. Although the steem of the barley shortened and some deformations formed, such effcctions didn't observed on summer wheat, in the plots that Tordon 101, Banvel-D and Banvel-D, Agroxone 4 ""ere apphed. On the other hand, most effeetive herbicide to C. cırvense which is Banvel D killed the %70. In the control of curled dock, fall eultivation is very effective and amine preparations are more effective than the others. AH herbicides are more effective to chadock in the researches. The herbicides in ester character ga ve the best resuJt and killed the 100 percent of the present lamb's quarters.

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