The influence of wing position on subsoiler penetration and soil disturbance

Development and Performance Evaluation of the Double Tines Subsoiler in Silty Clay Soil Part 1: Draft Force, Disturbed Area and Specific Resistance

“…In addition increase the disturbed area when adding wings which needs more draft force to disrupt and move the soil. This is in accordance with the results reported by Godwin et al (1981), Ahmed and Godwin (1983), and Ramadan (2011).…”

“…Adding wings have also noticeable effect on specific resistance. In this context, Ahmed and Godwin (1983) found reduction in specific resistance by 17.460 % at 36 cm operating depth when adding wings width of 30 cm. Olatunji and Davies (2009) carried out an experiment on disc plough in sandy loam soil at 9.4% M.C., they concluded that specific resistance increased from 17.35 to 34.1 kN m -2 when the forward speed of the implement increased from 0.83 to 1.94 m sec -1 .…”

“…In an experiment conducted by Godwin et al (1981) they found that adding wings of 10 cm width to subsoiler foot led to increasing draft from about 10 to 15 % for four operating depth 25, 42, 46, and 58 cm, they also concluded that total force increases in an essentially linear manner with increasing forward speed. In the same direction Ahmed and Godwin (1983) conducted a research work on a compacted soil to study the influence of wing position on subsoiler penetration and soil disturbance. They found that draft increased from 15.9 to 22.8 kN when adding wings of 30 cm width to the foot.…”

“…In addition the specific resistance decreased by adding wings to subsoiler foot from 459 to 175 kN m -2 in silty clay soil at 42 cm operating depth. Ahmed and Godwin (1983) pointed out that the disturbed area increased by adding wings to the subsoiler foot from 0.124 to 0.219 m 2 at 36 cm operating depth in compacted alluvial unclassified soil. Di Prinzio et al (1997) studied different conformations of deep tillage tools and resulted in an increase of 47% of the disturbed area by adding wings to the bottom of a conventional subsoiler.…”

Development of a Winged Tine to Relieve Mining‐Related Soil Compaction after Bauxite Mining in Western Australia

“…Spoor and Godwin (1978) and Ahmed and Godwin (1983) both investigated tillage using winged subsoilers at working depths to 0.42 m. Forest Research Institute (1977) built a tine similar in style to a winged subsoiler and tested it at depths to 1.0 m. Winged subsoilers consist of two components: a large, gently sloping point with a flat top that acts to create the primary soil break and a set of wings. Designed to feed into the primary break and extend it laterally, these wings are strongly swept back when viewed from above, and the leading edge of the wings is in the same horizontal plane as the point tip.…”