TENSIOMETER BASED AUTOMATED IRRIGATION FOR TOMATO UNDER PLASTICULTURE - Management, Performance, and Applications of Micro Irrigation Systems - page 205

FIGURE 1 (A-E) Average daily soil volumetric water content (cm·cm -3 ) measured at depths of
6 inches (●) and 12 inches (○) as well as daily rainfall (▼) (cm·day -1 ) during the 2009 growing
season for five automated, tensiometer-controlled irrigation regimes: on/off −30/-10 kPa (A),
−30/-25 kPa (B), −45/-10 kPa (C), −45/-40 kPa (D), −35 kPa (E) for 'Mountain Fresh' tomato
grown in Lexington, KY; 1 kPa = 1.0 cbar, 1 cm = 0.3937 inch, 1 cm 3 = 0.0610 inch 3 .