Özet:

This study was conducted in the Isparta Ecological Conditions in order to study the effects of 7 different nitrogen doses (0, 5, 10, 15, 20, 25 and 30 kg/day) on the plant productivity and quality of some single-year grass varieties (Alberto, Devis and Baqueano) in the 2017-2018 and 2018-2019 vegetation periods in the Isparta University of Applied Sciences Ziraat Faculty's experimental fields. The trial is set as repeated by three factual trial patterns in random blocks. The study studied plant length, spice thickness, dried herbs, raw protein ratio, raw protein ratio, ADF and NDF ratio. According to the average results, as the nitrogen dosage increases, the plant length, the thickness of the slurry, the dry herbs, the raw protein ratio and the raw protein ratio increases, while the ADF and NDF ratio decreases. When the differences between the varieties were studied, the varieties of Alberto had higher values in terms of plant length and ADF ratio, Devis, sap thickness, dry herbs, raw protein ratio and raw protein ratio. According to the results of this study, for a high grass productivity and quality in a single-year grass cultivation in the Isparta ecological conditions, 25 kg/kg nitrogen dose can be recommended, taking into account environmental pollution and economic conditions.

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