Determination of the effects of different nitrogen and phosphorus applications on the forage yield and quality of Hungarian vetch+barley mixture in konya conditions

This study was conducted in Konya during the 2022-2023 vegetation period to determine the effects of different nitrogen and phosphorus fertilizer doses on the yield and quality of the Hungarian vetch + barley mixture. The study was conducted with three replications according to the factorial trial design with randomized blocks. In the study, five different nitrogen doses (0, 3, 6, 9 and 12 kg da-1) and four different phosphorus doses (0, 4, 8 and 12 kg da-1) were applied. In the research, Anadolu Pembesi-2002 was used as the Hungarian vetch cultivar and Finola was used as a barley cultivar. The research examined plant height, green forage yield, dry forage yield, crude protein ratio, crude protein yield, acid detergent fiber (ADF) ratio, neutral detergent fiber (NDF) ratio, total digestible nutrients and relative feed values. The effects of nitrogen, phosphorus and nitrogen x phosphorus interactions on all properties examined in the study were found to be statistically significant. As fertilizer doses increased, plant height, green forage yield, dry forage yield, crude protein ratio, crude protein yield, total digestible nutrients and relative feed values increased significantly, while ADF and NDF ratios decreased. The highest dry forage yield were found as 887.4 and 931.6 kg da-1 and were obtained from the plots where 12 kg da-1 nitrogen x 8 kg da-1 phosphorus and 12 kg da-1 nitrogen x 12 kg da-1 phosphorus were applied respectively. The highest values in terms of crude protein rate and crude protein yield were obtained from the parcels where 12 kg da-1 nitrogen x 8 kg da-1 phosphorus and 12 kg da-1 nitrogen x 12 kg da-1 phosphorus were applied. In conclusion; in Konya and similar ecological conditions, 12 kg da-1 N + 8 kg da-1 P2O5 fertilizer doses can be recommended for high-yield and quality forage production in Hungarian vetch + barley mixture.