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AE260: Principles and Practices of Irrigation Management for Vegetables

Figure 3. Example of excessive (“over”) irrigation of the upper soil layer (0 to 6 inch depth) moisture content for drip-irrigation under plastic mulched condition for sandy soils. Black line indicates volumetric soil water content using soil moisture sensors. Grey line indicates irrigation event, single daily irrigation event with volume application of 65 gal/100 ft (0.18 in). Dotted line indicates soil field capacity line. Arrows indicate rainfall events.