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Öğe Effects of Design Parameters of a Cultivator Share on Draft Force and Soil Loosening in a Soil Bin(2009) Marakoğlu, T.; Çarman, K.This experimental study was performed with the aim to evaluate effects of design parameters of a cultivator share on draft force and soil loosening in a soil bin. The test tool variables included rake angle to the horizontal of 12.5, 17.5 and 22.5°, working epths of 70, 110 and 150 mm and forward velocity of 1.08, 1.55 and 2.08 m sec-1. Measurements were taken of draft force and disturbed area of soil by the cultivator share. The resulting draft force was increased with increasing rake angle, forward velocities and working depth. The draft force in different trials varied from 42 to 202.5 daN. The area disturbed of soil was larger when tool rake angle, forward velocity and working depth were increased. The greatest disturbed area occurred at rake angle of 22.5°, forward velocity of 2.08 m sec-1 and depth of 150 mm. The soil loosening increased with rake angle and forward velocity but loosening decreased with increased working depth. The soil loosening varied from 21.07 to 40.45%.Öğe Wheat Production Using Direct Seeding, Reduced Tillage and Conventional Tillage in Middle Anatolia(SCIENTIFIC ISSUES NATL CENTRE AGRARIAN SCIENCES, 2012) Marakoğlu, T.; Carman, K.The objective of this study was to examine wheat production using direct seeding, reduced tillage and conventional tillage in Middle Anatolia during the years of 2006-2007 and 2007-2008. In the experiment, two tillages and the direct seeding were used. All tillage methods and the direct seeding were applied in the dry fanning conditions. The effect of treatments on mean emergence dates, percentage of emerged seedling, fuel consumptions and wheat yield were measured. From the data, power requirement and field efficiency of each method were calculated. The highest fuel consumption was measured in the conventional method as 46.11 ha(-1) whereas the lowest value was found in the direct seeding method as 10.7 l ha(-1). Fuel consumption of the conventional method required four times more fuel than the direct seeding method. The best result for wheat yield was found in the direct seeding as 3388.9 kg ha(-1) in 2008. The lowest wheat yield was found in the conventional method as 2290 kg ha(-1) in 2007. The direct seeding gives the best result for fuel consumption, effective power requirement, field efficiency and wheat yield. In the dry farming condition, the direct seeding methods can be proposed for wheat production in the Middle Anatolia.
