Studying of some Mechanical Indictors for Different Mechanized Units of Tillage Systems under Gypsfreous Soil Conditions | ||
| Journal of Tikrit University For Agriculture Sciences | ||
| Article 1, Volume 17, Issue 2, July 2017, Pages 202-213 | ||
| Author | ||
| Thaer T. Abdul-Kreem | ||
| Abstract | ||
| The research has been conducted to investigate the effect of three types of plows (Mold board plow triple body) , (Disk plow triple body) and (chisel plow) with three tractor forward speeds (3.835 , 5.756 and 7.584 Km/h) under gypsfreous soil and its impact on practical speed , slippage percentage , fuel consumption , tractive force , lost power due to slippage , tractive efficiency and efficient use of energy. Split plot design under randomized complete block design with three replications was used and the Duncan multiple range test was used to indicate significant differences between the means of the transactions under possibility level of (0.05). The results showed that the effect of plows types was significant in all studied characteristics , the chisel plow superior to gave best values for practical speed , slippage percentage , fuel consumption , lost power due to slippage and efficient use of energy while the moldboard plow gave lower tractive force and higher tractive efficiency. There was extrusive relation between the forward speed with the practical speed , slippage parentage , tractive force and lost power due to slippage while the relation was inversely with fuel consumption , tractive efficiency and efficient use of energy. The effect of forward speed was significant in all studied characteristics except tractive efficiency. The forward speed (3.835 Km/h) gave best values of slippage percentage , tractive force , lost power due to slippage and efficient use of energy , however the forward speed (7.584 km/h) gave best values of practical speed and fuel consumption. The effect of interaction between plows types and forward speeds was significant in all studied characteristics except tractive efficiency. The interaction between disc plow and the for ward speed (3.835 km/h) gave lowest tractive force while the interaction between chisel plow and the forward speed (3.835 km/h) gave lowest values of slippage percentage lost power due to slippage and highest efficient use of energy. As well as the interaction between the chisel plow and the forward speed (7.584 Km/h) gave best values for practical speed and fuel consumption. However , the highest ejective significant correlation coefficient found between slippage percentage with lost power due to slippage with tractive force , and between tractive force with the lost power due to slippage. As will as found it between the practical speed with tractive force. | ||
| Keywords | ||
| The tillage systems; The tractor forward speeds; some mechanical indicators | ||
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