Soil Temperature and Moisture Tables
Soil Temperature (F) |
Soil Conditions |
|
|
|
Less than 20 Degrees
|
Deep Freeze - Winter Kill Imminent
|
Less than 33 Degrees
|
Frost Line - Soil Frozen
|
Less than 50 Degrees
|
Too Cold To Plant - Root Growth Only
|
51 - 59 Degrees
|
Minimum Growth / Optimal Root Growth
|
60 - 75 Degrees
|
Optimal Growth
|
76 - 90 Degrees
|
Ideal Growth
|
Soil Moisture |
Soil Conditions |
|
|
The centibar (cb) is an agricultural unit of soil water tension (water pressure on plant roots) |
|
0-10 cb
|
Saturated Soil (Free Water Range).
|
11-30 cb
|
Soil is adequately wet (Field Capacity Range).
|
31-60 cb
|
Irrigation Initiation range for most soils.
|
61-100 cb
|
Usual range for irrigation in heavy clayey soils (Limit of Readily Available Water).
|
101-200 cb
|
Soil is dangerously dry.
|
Page updated 8/26/2023 7:45:00 AM
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