Effect of Soil Moisture and Distance of Scraper in Field Performance of Disk Plow

Soil tillage is a critical process in agricultural production. Furthermore, the consumes lot of energy and time to complete soil practices. A disk plow with triple disks was tested one Agriculture Forestry college plantations at University Mosul during season 2013. The research included two moisture contents (10.7 16.2%), three distances between inner face scraper (2, 4, 6 cm). Besides, forward speeds for tractor (2.29 5.85 km/h) were used. test adopted evaluate consumed, specific energy, volume pulverized, adhesion on disks. also evaluated ratio overturn, lateral transfer, number clods bigger than 10 cm/m2. data analyzed statistic randomized block design (RCBD) using split-split plots system. results indicated significant differences factor level 10.7% first position 2 cm, speed km/h, traits which 0.11 N/m2 170.33 respectively. On other hand, there no statistical consumed decreased, while pulverized soils overturn increased, 16.2% same levels treatment.