Title

27.4

Horizontal Bar chart with 9 groups with 2 items per group.

Group 1, All gravity-irrigated acres.
Item 1, 1988 27.4.
Item 2, 2003 23.1.
Group 2, Water-management practice: Laser-leveled acres.
Item 1, 1988 3.
Item 2, 2003 3.7.
Group 3, Special furrowing techniques.
Item 1, 1988 3.6.
Item 2, 2003 1.3.
Group 4, Surge-flow and cablegation systems.
Item 1, 1988 1.4.
Item 2, 2003 0.4.
Group 5, Tailwater pits.
Item 1, 1988 4.9.
Item 2, 2003 1.5.
Group 6, Alternate-row irrigations.
Item 1, 1988 No data.
Item 2, 2003 2.6.
Group 7, Shortening of furrow lenghts.
Item 1, 1988 No data.
Item 2, 2003 0.4.
Group 8, Reduced irrigation set-times and # of irrigations.
Item 1, 1988 No data.
Item 2, 2003 2.8.
Group 9, Water-soluble polyacrylamide (PAM).
Item 1, 1988 No data.
Item 2, 2003 0.4.

All gravity-irrigated acres
23.1
Water-management practice:
3.0
3.7
Laser-leveled acres
3.6
Special furrowing techniques
1.3
1.4
Surge-flow and cablegation systems
0.4
4.9
Tailwater pits
1.5
NR
Alternate-row irrigations
2.6
NR
Shortening of furrow lengths
0.4
NR
Reduced irrigation set-times and number of irrigations
2.8
NR
Water-soluble polyacrylamide (PAM)
0.4
Million acres
NR = not reported for 1988. Source: USDA-ERS, based on Farm and Ranch Irrigation Surveys for 1988 and 2003 (U.S. Dept. of Commerce, 1990; USDA, 2004a).

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