Uticaj setvene norme na prinos i kvalitet sena lucerke

The objective of this research was to determine dry matter yield (t ha-1) and leaf portion (g kg-1) as affected by different seeding rates. Four alfalfa varieties, two cutting regimes (I – early, cuts at the 10% bloom stage; II – medium, cuts at the 50% bloom stage), and two seeding rates were compared. Higher seeding rate did not produce higher dry matter yield. Cutting in different phenological stages of alfalfa plants had no significant effect on the yield. Leaf portion significantly correlated with the cutting regime, while seeding rate did not show statistical correlation.Tokom 2010-2011. godine ispitivan je uticaj različitih količina semena za setvu na prinos sena (t ha-1) i udeo lista (g kg-1) u prinosu lucerke. U ogled su uključeni sledeći faktori: dve setvene norme (8 i 16 kg ha-1); dva sistema kosidbe (I-rani, košenje u fazi 10% cvetalih biljaka; i II-srednje rani, košenje u fazi 50% cvetanja); 4 sorte lucerke (Banat VS, Nijagara, NS Alfa i NS Mediana ZMS V). Prinos suve materije se nije značajno povećao povećanjem setvene norme. Setvom 16 kg ha-1 dobijen je isti prinos kao i setvom 8 kg ha-1. Kosidba u različitim fazama razvića biljaka lucerke nije značajno uticala na formiranje prinosa. Udeo lista u prinosu značajno je zavisio od sistema kosidbe, dok veća količina semena za setvu nije uticala na povećanje kvaliteta sena lucerke