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Glossary:Infiltration rate
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The average rate of water entering the soil under irrigation. Most soils have a fast initial rate; the rate decreases with application time. Therefore, intake rate for design purposes is not constant but is a variable depending on the net irrigation application. The rate of water intake (in inches per hour) is expressed as follows:
- Very low - Less than 0.2 in/hr
- Low - 0.2 to 0.4 in/hr
- Moderately low - 0.4 to 0.75 in/hr
- Moderate - 0.75 to 1.25 in/hr
- Moderately high - 1.25 to 1.75 in/hr
- High - 1.75 to 2.5 in/hr
- Very high - More than 2.5 in/hr