WSP06476

• File Number: 8271.300
• Description: Colorado River Basin Salinity Control Program - General Information and Publications-Reports
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 6/1/1978
• Title: Salinity Management Options for the Colorado River -- Part 1 of 2 -- Title Page - Page 168
• Water Supply Pro - Doc Type: Report/Study

Study I'ro<edures

tion, and the Central Arizona Project (CAP) service
area. Agricultural yield decrements and alternative
management practices which might be implemented
by farmers as salinity levels increase were evaluated
by researchers of the University of Arizona and the
University of California. These physical data were

TaWe 1.. SlmImaf'/l of 1M/d IoBles in the Pa/q Vel'de Irrigation District due :to l'ncreasing saUnitll of irrigation
wat"" from fhe Colorado River and irrigation method as compared with present water quaUtll and
best irrigation practice - thousand tons.
0 Total Dissolved Solids in Irrigation Water, mg/l
I'".:J Irrigations
l\:) Crop PerYj3ar
900 1000 1100 1200 1300 1400
-...J Alfalfa 16 22.3 29.4 42.9
.... 76.1 82.0 88.0
CIV 38,000 Ac. 22 16.2 21.7 29.9 36.8 72.4 77.6
29 13.2 18.8 25.4 31.1 40.3 73.7
35 9.4 14.3 19.3 23.4 30.3 36.6
Sprinkler 7.2 13.6 18.5 25.0 30.3
Cantaloupe 16 6 9 14 17
1,400 Ac. 22 1 4 8
29 1 4
35
Sprinkler
Watermelon 16 0.31 0.49 0.76 0.93
1.300 Ac. 22 0.05 0.22 0.44
29 0.05 0.22
35
Sprinkler
Cotton 16 0.48 1.06 2.12 5.24
13,900 Ac. 22 0.33 1.25 1.32
29 M9 1.06
35 0.49
Sprinkler 0.21
Grapefruit 16 4 9 16 21 31 36
810 Ac. 22 5 9 15 19
29 5 10 15
35 5
Sprinkler
Lettuce 16 44 88
7,000 Ac. 22 44 88
29 44 88
35 44 88
Sprinkler
Lemon 16 6 12 21 28 41 48
3,300 Ac. 2. 7 12 20 26
29 7 13 20
35 7
Sprinkler
Onion 16 0.4 1.7
3,500 Ac. 22 0.4 1.7
29 0.4 1.7
35 0.4 1.7
Sprinkler
Sorghum 16 0.08 0.19 0.27 0.35 0.44 0.68
6.500 Ac. 22 0.05 0.09 0.16 0.26 0.34 0.40
29 0,03 0.G7 0.15 0.19 0.28 0.35
35 0.02 0.03 0.G7 0.12 0.19 0.27
Sprinkler 0,03 0.07 0.13 0.21
Wheat 16 0.50 0.91 1.52 2.32 3.07 3.77
20,000 Ac. 22 0.50 0.91 1.43 2.45 2.75
29 0.31 0.71 1.14 1.74 2.32
35 0.41 0.71 1.14 1.63
Sprinkler 0.31 0.71 1.12

The agricultural areas modeled are all in the
Lower Basin: San Diego coastal area, Coach&lla
Valley, Imperial Valley, Yuma area, Palo Verd&
Irrigation District, Colorado River Indian Reserva.

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