Total irrigation ranged from 6.5 to 25.9 inches in Exp-2 (Fig.

3). Rainfall was ignored in the irrigation schedule for this

experiment, however, estimated available water from rainfall in

June was 2.09 inches (0.25 x 8.34). Therefore, total available

water in June from maximum irrigation plus rainfall was 11.09

inches or 0.37 inches/day average. Estimated total average daily

water use during June for tomatoes in Exp-2 at 25, 50, and 75% of

maximum irrigation was 0.15, 0.22, and 0.29 inches/day,

respectively.

 Accumulative Irrigation Use (Inches)
 30
 % of Maximum Irrig.
 25 0oo
 E 76
 20 -ES so
 3 265
 15

 10-




 Ap-8 Ap-26 My-16 Jn-15 Jy-15
 Date (Month-Day)

Figure 3. Accumulative irrigation use by treatments in exp. #2.



 Tensiometer scheduled irrigation and a maximum irrigation rate

of 0.12 inches/day received similar amounts of total irrigation in

Exp-3 (Fig. 4). This was not surprising since average daily

irrigation between 22 May and 29 June for tensiometer scheduled

irrigation was 0.126 inches/day. Tensiometer scheduled irrigation

under a shelter reflects total water demand of tomato plants.