Dry Matter Yield and Quality of Alfalfa As Affected By Different Seeding Rates
Uticaj setvene norme na prinos i kvalitet sena lucerke
Author
Katanski, Snezana
Milic, Dragan
Karagic, Djura
Keywords
alfalfacutting regime
seeding rate
yield
lucerka
prinos
setvena norma
sistem kosidbe
Metadata
Show full item recordAbstract
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.