Abstract
This study was conducted in telefar region, Mosul governorate during agriculture season 2002-2003 to study the effect of three plow types (mold board , Chisel and one way disk) with two plowing depths (10-15 cm) and (15-20 cm) and two sprinkler irrigation system on soil physical properties (bulk density , porosity , moisture content and soil penetration resistance) randomized complete block design (split – split plot design) was used and the results analyzed statistically. The results showed that the one way disk plow with the solid set sprinkler irrigation system surpassed in bulk density and porosity after plowing. The same plow with the two studied depth and the same irrigation system after germination irrigation and final irrigation surpassed in bulk density and porosity as well as soil penetration resistance characteristics. In moisture content of the soil the one way disk plow with depth of plowing (15-20) cm and the a center pivot sprinkler irrigation system significantly surpassed after plowing and after germination irrigation. After the final irrigation, the moldboard plow and the same plowing depth and the same irrigation system surpassed in moisture content characteristic.Also the moldboard plow with the plowing depth (10-15) cm with irrigation system surpassed in soil penetration resistance .
