Effect of Tillage Depth and Lateral Distance of Shallow Plows on the Mean Weight Diameter and the Energy of Soil Fragmentation by Using Locally Manufactured Subsoiler Plow

Abstract

The field experiments were carried out in Basrah province, to study the effect of the distance between the shallow plows (0.40, 0.50, 0.60m), and adding wings on the foot of the subsoiler plow, at tillage depth (0.30, 0.40, 0.50, 0.60m) on the Mean Weight Diameter (MWD) and equivalent energy of the soil fragmentation in clay soil. The results showed that the increase in the plowing depth to 0.60m by the subsoiler without wings on the foot and shallow plows gave largest of the MWD (102.28mm). While the increased the lateral distance of the shallow plows to 0.60 m gave MWD (67.13mm). The interaction effect of adding wings and tillage depth led to decrease MWD by 30% when adding wings compared to the no addition treatment. The MWD decreased by more than half with adding wings and shallow plows. The equivalent energy increased by 30.58% when increasing plowing depth from 0.30 to 0.60m compared to 9.09% for the no winged plow. Moreover, the equivalent energy of fragmentation decreased when increases lateral distance of the shallow plows. The equivalent energy increased by 36.29% when increasing the depth of tillage from 0.30 to 0.60m at lateral distance 0.60m compared to 9.09% for the plow without wings.

Effects of different tillage and fertilizer on soil quality under wheat‐maize rotation in the North China Plain

“…Further, it was observed that the relationships between the aggregates larger than 0.25 mm, the mean weight diameter, and the geometric mean diameter were gradually strengthened as the soil layers steadily increased in Figure 3. Several studies showed that they were influenced by different treatments and soil layers, for example, the geometric mean diameter increased with the soil layer depth (Chen et al, 2019; Song et al, 2022), and the value of the mean weight diameter increased as the cultivation depth changed from 30 to 60 cm (Alfaris & Almaliki, 2022).…”

Discrete Element-Based Simulation Analysis and Research of Potato Soil Agglomerate Fragmentation and Separation

“…Alfaris Murtadha A. A. studied the effects of lateral spacing between deep plowing and shallow plowing on the average weight diameter and soil crushing energy of deep plowing by a self-made deep plowing plow [15]. A.…”