The effect of different harvesting times on the quality of silage in some Hungarian vetch (Vicia panonnica crantz) varieties

This This study was conducted with two Hungarian Vetch (Vicia pannonica) varieties, Anatolian Pink (AP) and Tarm Beyazı-98 (TB) and Oat (Kırklar) (Y), in plain and different proportions (% 25AP:75 Y, 25 TB:75 Y, 50 AP:50 Y, 50 TB:50 Y, 75 AP: 25 Y, 75 TB:25 Y) in the trial and applica-tion field of Siirt University Faculty of Agriculture Field Crops Department in 2022 to determine its effect on silage quality. Conducted in the 2023 growing season. While Hungarian vetch was harvested at the beginning of flowering and full flowering, oats were harvested at the beginning of heading and full heading. The mowed materials were shredded by passing them through a silage chopping machine. After the shredding process, the plant materials were weighed, mixed in the determined proportions and filled into 1 kg glass jars. The jars were sealed airtight and left to ferment at room temperature for 60 days. In silage samples opened at the end of the fermentation period; silage dry matter ratio, pH, crude protein, acid insoluble fiber ratio (ADF), neutral insoluble fiber ratio (NDF), digestible dry matter ratio (SKM), dry matter consumption rate (DMT), relative feed value (NYD), potassium (K), phosphorus (P), calcium (Ca), magne-sium (Mg) contents were determined. According to the research results; average values pH 4,4-4,96, silage dry matter ratio (%) 26,66-39,2, crude protein ratio (%) 9,45-16,20, ADF ratio (%) 35,05-39,92, NDF (%) 41,33-69,16, SKM ratio (%) It varied between 58,68-61,59, BMT ratio (%) 1,76-2,24, NYD 85,00-149,94, Ca ratio 0,86-1,37%, Mg 0,13-0,24%, P 0,36-0,41%, K 2,88-4,47%. When all the results are evaluated; It has been determined that the silage obtained from cuttings made at the beginning of flowering of Hungarian vetch is superior in terms of quality. Keywords: Hungarian vetch, oats, mixing ratios, silage, quality