The Effect of Various Nitrogen Levels and Planting Dates on Some Physiological Treats of Two Cultivars of Coaster Beans

Islamic Azad University, Department of Agriculture, Damghan Branch, Damghan, Iran


BORHAN, N., H. AFSHARI and J. M. SINKI, 2013. The effect of various nitrogen levels and planting dates on some physiological treats of two cultivars of coaster beans. Bulg. J. Agric. Sci., 19: 439-443


In order to study the effect of various amount of nitrogen on coaster beans cultivar in different planting dates in Damghan climate an experiment was conducted in a split plot design based on completely randomized blocks with three replications during 2010-2011. In this experiment main factors consisted of two cultivars (Aoura and local), sub factor was nitrogen fertilizer in three levels (100, 150 and 200 kg/ha) and secondary sub factor was planting date in three dates (30 April, 15 May and 31 May.Treats like oil percent, Protein percent, fiber percent and ash were measured in the experiment. The results showed that effects of cultivar and planting dates on Protein and oil percent and fiber and ash percent was significant (P<0.01). Means comparison of cultivar and planting date interaction on Protein percent and fiber was significant (P<0.05). The results showed that planting of Aoura cultivar in early Ordibehesht (late April) and applying 150 Kg/Ha is suitable in Damghan.

Key words: coaster beans, planting date, Cultivar, Nitrogen, Seed oil percent

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