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Soil strength [psi] Soil stress at 35 cm soil depth [psi] Decision chart (at 35 cm soil depth) 0 4 7 11 14 18 21 25 29 33 36 33 29 25 21 18 14 11 7 4 0
No soil compaction risk
Considerable risk of soil compaction - reduce wheel load or tire inflation pressure
CAUTION: High risk of subsoil compaction - avoid driving on the field
Tire inflation pressure [psi] Wheel load [t] Soil stress at 35 cm soil depth [psi] 0 1 2 3 4 5 6 7 8 9 10 11 12 72 65 58 50 43 36 29 21 14 7 0 21 25 29 33 18 14 11 7 4
Soil water matric potential [cbar] Clay content [%] Soil strength (precompression stress at 35 cm depth [psi]) 0 5 10 15 20 25 30 35 40 60 55 50 45 40 35 30 25 20 15 10 5 0 21 25 29 33 36 18 14 7
Soil stress:
Soil strength:
Wheel load
kg
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Tire inflation pressure
psi
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Clay content
%
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Soil water suction
cbar
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