Pecan IPM Toolbox
Horticultural Practices
Drainage Test Hole
Without adequate internal drainage, commercial crops cannot be grown. This can be tested by digging an 8-inch hole 32-inches deep and filling it with 5 gallons of water.
| Internal Drainage Test for Pecan Soil | |
| Hours to Empty | Soil Drainage |
| 1 | Excellent |
| 8 | Very Good |
| 24 | Fair |
| 48 | Adequate |
| Will Not Empty | Not a Pecan Soil |
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