HORSE POWER ROLE OF TRACTORS AND PULVERIZATIONS ON SOME TECHNICAL INDICATORS FOR MECHANIZATION UNIT BY TANDEM DISK HARROW | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 43, Issue 1, April 2013, Pages 147-156 | ||
| Author | ||
| Jinan .H.N.AL Talabani | ||
| Abstract | ||
| An experiment was conducted on a farm belongs to college of Agriculture – University of Baghdad for the year 2010 in a silty clay loam soil to study the effect of two types of tractor, a Newholland with 80 horse power and a Masyfergison with 142 horse power (facter1) and frequent pulverization (facter2) by Tandem disk harrow. The tractor speed was H1 which reached to 6.545 km/h for the Newholland tractor and 7.2 km/h for the Masyfergison . Treatments were laid out using split – plot with randomized complete block design in three replicates . The soil moisture content range during the experiment was 15-17% . Data on slippage percentage , practical productivity , field efficiency , clods> 5cm / m² and bulk density . The result obtained indicated that there were significant differences between the kind of tractors and frequent pulverization with their interactions for all parameters studied . At the same frequent pulverization Masyfergison surpassed by recorded a lower average of slippage percentage got to 16.28% and a higher practical productivity reached to 1.268 ha/h and a highest field efficiency arrived to 67.75% with a lower average of clods > 5 cm/m² reached to 4.666 clod/m² and the Newholland recorded a lower average of bulk density got to 1.457 mg/m3 . On the other hand , and with the fixing tractor kind , once pulverization recorded a lower average of slippage percentage got to 14.51% and bulk density arrived to 1.333 mg/m3 ,and it gives a higher average of practical productivity got to 1.238 ha/h and a highest field efficiency got to 68.56% .But the twice pulverization recorded a lower average number of clods > 5 cm/m² which was 3.166 clods / m² . | ||
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