Effect of different levels of Nitrogen on growth and dry matter of sorghum three cultivar (( Sorghum bicolor (L.) moench ))

Abstract

The field experiment was conducted at wassit province through autumn season 2009 to study the effect of five nitrogen levels (0,40 80, 120 and 160 Kg /ha) on some growth characteristics and dry matter yield for three Sorghum cultivars (Rabeh, Ankath , and Kafeer-2).
Kafeer-2cultiver showed a significant results compared with the other cultivars in growth characters average((leaves number, plant height and dry matter )) which was (( 12.258 leave /plant -134.77 cm -10.361 T\h ))respectively and the statistical analysis showed a significant different between the treatments .level 160 kg/ha showed a significant results in growth characteristics ((leaves number, plant height, leave area and dry matter )) average 13.719 leave /plant- 152.8 cm -18.307 cm2- 17.476 ten/ha ) respectively. The interaction between cultivars and nitrogen levels had significant effect except leaves number.