The effect of nitrogen biofertilizer and nitrogen chemical fertilizer on yield and yield components of white bean (Phaseolus vulgaris,cv.Dorsa)

Abstract

For evaluating the effects of bio and, chemical nitrogen fertilizer application on yield and yield components of white bean (Phaseolus vulgaris ,cv.Dorsa), a study was performed in the factorial form based on completely randomized block design with three replications ,during growing season of 2012-2013.Treatments were 3 levels of bio-fertilizer application as Nitro Kara (control, contaminated seed in planting stage and the full green stage) and 4 levels of chemical nitrogen fertilizer as urea (control, 100, 150 and 200 kg ha-1). Results of variance analyze showed that bio-fertilizer treatment had effected the No. pod/unit area, No. full pods/ unit area, No. empty pod/unit area, 100-grain weight and Seed yield. The mean comparison of data showed that the using biofertilizer as seed stained + 150kg urea/hectare increased the number of pods and full pods per unit of area an average 69% compared with the control. Also, the using bio-fertilizer as seed stained + 100kg urea/hectare increased the 100-grain weight and Seed yield an average 58% and 72% compared with the control, respectively. The using bio-fertilizer as seed stained + 150kg urea/hectare decreased the number of empty pods an average 2/66 times compared with the control.