THE IMPACT OF TILLAGE DEPTH AND PRACTICAL SPEED OF THE TRACTOR TYPE (JINMA) 754

H. Ali, S.; S. Kadhim, N.

	THE IMPACT OF TILLAGE DEPTH AND PRACTICAL SPEED OF THE TRACTOR TYPE (JINMA) 754
IRAQ JOURNAL OF AGRICULTURE
Article 1, Volume 19, Issue 3, 2014, Pages 0-0
Authors
S. H. Ali; N. S. Kadhim
Abstract
A field experiment was conducted in 2011 to study some of the parameters of performance of the tractor Jinma 754 Chinese manufacture as one of machinery unit parts (tractor and chisel plow) on a field of the College of Agriculture/ University of Baghdad. The field soil texture was characterized as a silty clay loam. The machinery unit has been moved at speeds of 2.270, 3.014 and 4.714 km/h with tillage depths: 10-15 cm., 15-20 cm. and 20-25 cm. . Some of tractor parameters were used in this study included: NOX, CO, HC and CO2. The experiment designed according to a split split plot design under randomized complete block design with three replications to study two factors: three levels of tillage depths: 10-15, 15-20 and 20-25 cm the first factor and three levels of practical speed: 2.270, 3.014 and 4.714 km /h. The second factor results showed the following: depths 20-25 cm. and practical speed 4.714 km/h recorded the lowest nitrogen oxides (NOX) 666,830 ppm to all depths and speeds, while the highest nitrogen oxides (NOX) 1040,500 ppm recorded at speed 2.270 km/h and tillage depth 10-15 cm. While in case using speed 2.270 km/h and tillage depth 10-15 cm recorded lowest carbon dioxide (CO) 0,052% for all depths and speeds. Speed 4.714 km/h and tillage depth 20-25 cm recorded highest carbon dioxide (CO) 0,089%. The practical speed 2.270 km/h and tillage depth 10-15 cm recorded the lowest amount of unburned fuel (HC) 7,500 ppm to all depths and speeds, the highest amount of unburned fuel (HC) 19,500 ppm at speed 4.714 km/h and tillage depth 20-25 cm, the interaction between practical speed 4.714 km/h and tillage depth 20-25 cm has been recorded lowest proportion of carbon dioxide (CO2) 16,423% to all depths and speeds, while practical speed 2.270 km/h and tillage depth 10-15 cm recorded highest proportion of carbon dioxide (CO2) 8,695%. Conclusion from the research superior using depth 10 - 15 cm. and speed 2.270 km/h recorded the lowest CO and HC Therefore recommend to work at depth 10-15 cm. and practical speed 2.270 km / h.

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