Comparison of three commercial drain tiles in a heavy clay soil of Imperial Valley
AuthorsF. E. Robinson
J. N. Luthin
Authors AffiliationsFrank E. Robinson is Assistant Water Scientist, Department of Water Science and Engineering, University of California, Davis; James N. Luthin is Professor of Irrigation and Civil Engineering, Department of Water Science and Engineering, University of California, Davis.
Hilgardia 22(8):10-11. DOI:10.3733/ca.v022n08p10. August 1968.
No evidence was found in these tests of real differences in performance between clay, concrete, or bituminous-fiber tiles. Differences in tile outflow were due primarily to soil variation and not to tile performance. Little actual change in salinity resulted from the leaching operation in the body of soil between the tiles. In most cases as much, and often more, water was lost through seepage as was removed by the tile. Much of the water which moved through the soil followed the disturbed trench above the tile, as evidenced by the much lower salinity in that trench. Electrical conductivity of the tile effluent was inversely related to both rate and duration of tile flow. Each tile showed a unique relationship between electrical conductivity, rate, and duration of flow—probably a reflection of a unique combination of hydraulic conductivities along each tile line.
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Sudangrass greenchop yields reduced by wheel damage during harvesting
Research with nitrogen fertilizer emphasizes fertilize crop—not crop residue
Carbamate herbicides—new tools for cytological studies
Magnesium deficiency in cut-flower chrysanthemums
Phosphorus deficiency decreases stomatal activity and water use of plants
Pricing efficiency in the manufactured dairy products industry