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  • noun

Synonyms for subsoil

the layer of soil between the topsoil and bedrock


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References in periodicals archive ?
Considering each seed treatment, the treatments of subsoiling did not affect rice yield significantly.
2012), on the other hand, observed that subsoiling and sporadic chiseling in soils under no-tillage system did not interfere with plant development or corn yield.
RP increased with soil depth and reached values from 2,755 to 3,460 kPa in the experiment with subsoiling and higher values, from 3,674 to 4,108 kPa, in the experiment without subsoiling (Figures 2A and 2B), agreeing with Cunha et al.
Table 2: Effects of subsoiling on soil water storage in the 0-300 cm depth in fallow period of dry-land wheat
SWS at the soil depth of 0300 cm were tested in the fields with or without subsoiling treatment (Table 2).
As the concentration of N increased the SWS declined in plots under subsoiling treatment at the over-wintering jointing booting and anthesis stages of dry-land wheat while similar pattern was observed in the non-tilled fields at the over-wintering jointing and booting stages (Table 3).
Subsoiling used a subsoiling chisel point with adjustable wings that was designed at China Agricultural University in 1992.
Subsoiling can break the plough pan layer, significantly decrease the soil bulk density (Pikul and Aase 1999; Mohanty et al.
This result showed that the interval with no-tillage and subsoiling could effectively retain soil water from rainfall during July-September.
Summary of benefits attributed to soil loosening in Australia Intervention technique Primary benefit Subsoiling Five commercial subsoilers differing shank, coulter, tine, and wing configurations.
During this period, the plots had developed very different surface residue and soil organic matter characteristics in the top 100 mm of the soil profile, but the subsoils were similar, having been uniformly managed with in-row subsoiling throughout the previous 18 yr (Karlen et al.
The subplots comprised different subsurface tillage regimes (no subsoiling vs.
Consequently, surface fractures and pores created by subsoiling were refilled and destroyed, tending to nullify tillage induced surface conditions.
In addition to increasing water infiltration and reducing erosion, subsoiling below the depth of freezing can improve drainage in the surface layers and decrease structural instability, subsequently increasing stored water in dry farmed regions.
Most importantly, since subsoiling doesn't destroy crop residues on the surface and probably is not required every year, the practice is compatible with conservation tillage.