EFFECT OF USING DIFFERENT TYPES OF PLOWS IN DIFFERENT WORK CONDITIONS ON THE PRODUCTION OF OKRA IN NINAVH CITY

The study was carried out in the agricultural season 2007-2008 in two sites: Hamam AL-Alil, 30Km south of Mosul and Hamdaniya, 20Km south East of Mosul to study some indicators of economic and technical and plant features through using three different plows (disc, mold board and chisel) in two depths for each plow (15-22 , 22-30cm) for both plows disc and mold board and (10- 15, 15- 20 cm) for chisel in two speeds (3.5-4 , 5-5.5 Km/h). These indicators include soil humidity purity, effective field capacity and 1000dinar/donum cost 1000dinar/h cost, dry root weight, blossoming date, plant height and total yield. The results show significant surpass of triple interaction: second site, second speed and chisel plow with first depth in most of the studied features. The most important over being yield, plant height and dinar/donum cost and effective field capacity of plows. More over, this interaction is not significantly different from the best score of humidity, purity gained and blossoming date.