Determination of the effect of the application of some herbicides with different water levels on the biological activities of weeds

In this study, the herbicides which are effective against dicotyledonous and monocotyledonous weeds that are problem in wheat fields in Tokat province in 2017-2018 period were prepared and applied using waters having different pH levels. The effectiveness of the herbicides was tested under the controlled conditions and in field experiments. Their effects on yield and quality were evaluated. The experiment was carried out with four replications according to the randomized block design and repeated twice. The results were subjected to variation analysis and the averages were grouped by Duncan test. At the end of the application, (from 53.90 to 64.80 cm) and maksimum yield between ( 190.44 and 301.43 kg/da). The highest plant height were obtained with 2,4-D amin herbicide by preparing with water having 7 pH degree. According to the results of the experiment, it was found that different pH levels of water caused differences in biological yield components of wheat, and weed control. It was also determined that the neutral pH level was ideal for herbicide perpetration.