Furrow parameters in rotary strip-tillage: Effect of blade geometry and rotary speed

Field experimental study on optimal design of the rotary strip-till tools applied in rice-wheat rotation cropping system

“…Increasing speed resulted in reduced furrow backfill (Figure 8) as the blades threw more soil out of the furrow. This agrees with the results that have been reported by Lee et al [16] and Matin et al [13] .…”

“…But the disc blades were found to have considerably increased the torque requirement. Matin et al [13] found that the use of straight blades assisted furrow uniformity and improved backfill by intercepting the loosened soil as it moves laterally. In this paper, the evolving technology inspired the design of a mixed blade configuration which combines the beneficial performances of different tools, i.e.…”

“…A down-cut process and four rotary blades around the periphery were recommended using in sandy loam soil condition by Lee et al [16] . Matin et al [13] evaluated the performance of the bent C blade for strip-tillage, showing that too much soil was carried out of the furrow. They thus recommended using a straight blade for strip-tillage in dry soil conditions, as it could leave the finished furrow filled with loose tilth suitable for a seedbed.…”

“…In order to achieve a finer tilth and a regular furrow shape, researchers have recommended using higher rotor speeds for strip-tillage [13,16] . However, a higher rotary speed results into increased stress on the soil [23] , leading to a negative effect on soil structure.…”

“…Several studies in soil bins were conducted to improve the cultivation quality of rotary strip-tillage by optimizing tool geometry and the operating parameters, with an aim of cutting the trash cover and retaining the loosened soil in the furrow [13,[16][17][18] . A down-cut process and four rotary blades around the periphery were recommended using in sandy loam soil condition by Lee et al [16] .…”