Study on Effect of Plant Density and Nitrogen on Yield and Yield Components of Visia Faba (Faba Bean)

In order to study on effect of plant density and nitrogen on yield andyield components of visia faba (faba bean), the experimental design was implementedby randomized complete block with three replications at 2010-2011 in lahijan. the experimental factors were three plant density (25×25 cm,35×35 cm and 45×45 cm) and four nitrogen fertilizer (0, 20, 40, 60 kg ha-1). inthis experiment, features such as seed yield, weight of 100 seeds, the numberof pod per plant and harvesting index were measured. the results showed thatthe effect of plant density and nitrogen were significant on seed yield but werenot significant on weight of 100 seeds and the no. of pod per plant. the highestseed yield was obtained in 25 × 25 cm plant density. also with increasing of nup to 60 kg ha-1, harvesting index increased. the interaction effect of plantdensity and nitrogen on seed yield was significant and 25 × 25 cm plantdensity and 40 kg ha-1 nitrogen had shown the most effective on seed yield.but the interaction effect of plant density and nitrogen on other features hadn’tsignificant.