Sub-surface infiltration system for tree irrigation
By: by Paul G. Heitzman.
Series: Research program report / Washington State Dept. of Transportation ; 32.1; Research program report (Washington (State). Dept. of Transportation) -- 32.1.
Publisher: Washington State Dept. of Transportation, Division of Highways
Published: 1977
Place of publication: [Olympia]
Language: eng
Number of pages: 41
Subjects: Trees -- Irrigation -- Washington (State)
Notes: Final report.

Research project HR 475.