Study of bush accumulation and division of nitrogen fertilizer on agronomic characteristic of local sesame jiroft area

In order to investigate the influence of bush accumulation and division of nitrogen fertilizer on jiroft local sesame، an experiment was done on split plot design based RCBD with four replications. Accumulation as a major factor in four bush levels (10، 13. 3، 20 and 40) in square meter and Nitrogen fertilizer divisgon in three levels (20-100-30)، (50-50-50)، (50-70-30) kg/ha were investigated. The results indicated that bush accumulation affected seed and biolgie function، number of capsul in bush، number of capsul in bush، number of foliage and height the effect of nitrogen fertilizer division is on seed function، biologic function، seed weight، number of capsul in bush، number of seed in capsul، number of secondary foliage and height. Average of nitrogen fertilizer comparison indicated that the highest seed function by 1727 kg/ha was obtained in division (50-50-50) kg/ha in pure nitrogen. Bush accumulation comparison indicated that the most seed function (1912 kg/ha) was achieved in accumulation of 40 bushes/m2. The mutual effects of bush accumulation and nitrogen fertilizer division showed that most seed function as 2044 kg/ha was in accumulation of 40 bushes/m2 and with usage of (50-50-50) pure nitrogen in kg/ha.