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An Oscillating and Non- oscillating Subsoiler Shanks and Their Influence on Traction Resistance and Soil Properties

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Paper number  131602809,  2013 Kansas City, Missouri, July 21 - July 24, 2013. (doi: http://dx.doi.org/10.13031/aim.20131602809) @2013
Authors:   Abdalla Noureldin Osman, Dongxing Zhang, rui Zhang, xia Li
Keywords:   subsoil vibrating shank machine draft bulk density soil moisture content.
Abstract.

The problems of soil compaction and hardpan formation are common in corn fields due to the traffic of tractors during cultivation and trucks after harvesting. Increased awareness of the problems associated with subsoil compaction has generated widespread interest in subsoiling. The effective deep soil loosening is a strong argument for the investigated non-inversion tillage system. An oscillatory ripper which was developed by China Agricultural University to break hardpan was used in this study. The subsoiler was designed to be operated with a 44.1-58.8kW tractor. This experiment was carried out at Shan Xi province in China in November 2010. The two working style of deep ripper shank (oscillating and non- oscillating shank) were studied to find out their influence on draft requirements, and soil physical parameters such as, bulk density, and soil moisture content through the 300 mm soil layers from the soil surface. The nature of soil at the farm was found to be silt-clay soil. The results showed that, a reduction in traction resistance and bulk density were found for oscillating compared to non- oscillating subsoiler by 16.49% and 6.4% respectively. It was also found that shank working style significant effect on soil bulk density and machine draft (P < 0.05) while there is no significant difference on soil moisture content.

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