Effects on hay yield and quality of common vetch (Vicia sativa l.) and barley (Hordeum vulgare L.) mixture rates in Bingol conditions

In this study, hay yield and quality of common vetch (Vicia sativa L.) and barley (Hordeum vulgare L.) mixture rates were investigated under Bingol conditions during the 2016 growing season. In the study, Gorkem common vetch variety obtained from department of Field Crops, Faculty of Agriculture, University of Dicle and Altikat barley variety obtained from GAP International Agricultural Research and Training Center were used as plant material. The research was established as a randomized complete block experimental design with three replications. Common vetch stem length, barley plant height, green herbage yield, common vetch rate in the green herbage, dry hay yield, common vetch rate in hay yield, relative yield total, crude protein ratio, crude protein yield, crude ash ratio, acid detergent fiber (ADF) and neutral detergent fiber (NDF) were analyzed. The results of variance analyses showed that there were statistically significant differences among some characters (vetch stem length (P≤0.05), green herbage yield, vetch rate in the green herbage, dry hay yield, vetch rate in the hay, relative yield total, crude protein ratio, crude protein yield, crude ash ratio, acid detergent fiber (ADF) and neutral detergent fiber (NDF) (P≤0.01). Results of the research; vetch stem length of the mixtures from 50.40 to 61.33 cm, barley plant height from 68.30 to 78.00 cm, green herbage yield from 683.78 to 1316.44 kg/da, vetch rate in the green herbage from 5.19 to 100.00%, dry hay yield from 221.63 to 720.99 kg/da, vetch rate in the hay from 5.40 to 100.00%, relative yield total from 0.73 to 1.00, crude protein ratio from 6.27 to 20.43%, crude protein yield from 42.76 to 58.98 kg/da, crude ash ratio from 6.86 to 11.41, ADF from 30.93 to 33.89% and NDF from 46.96 to 62.69% were obtained. Based on this study, of %60 vetch + %40 barley mixture may be concluded that the best mixtures in terms of the highest crude protein content and the lowest rates ADF for Bingol and similar ecological regions. Keywords: Common vetch, barley, mixture, hay yield, crude protein ratio.