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Drainage with Perforated Plastic Tubing 1
Author(s) -
Klock G. O.,
Boersma L.,
Watts D. G.,
Brooks R. H.
Publication year - 1969
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1969.00021962006100010018x
Subject(s) - lysimeter , subsoil , drainage , manganese , geology , environmental science , agronomy , hydrology (agriculture) , geotechnical engineering , soil water , soil science , materials science , biology , ecology , metallurgy
The feasibility of placing drains at shallow depths and close together to improve drainage conditions on a planosol was evaluated. Field lysimeters were obtained by surrounding soil blocks with vertical sheets of heavy plastic penetrating well into the impermeable subsoil. Perforated plastic tubing placed 22.5 feet (approx. 6.9 m) apart at a depth of 20 inches (approx. 51 cm) provided adequate drainage. Dupuit alfalfa yielded better than 10 T/A dry matter. Manganese levels were below concentrations considered toxic. When a spacing of 45.0 feet (approx. 13.7 m) was used, the alfalfa yields were greatly reduced, and the manganese concentrations were well above levels considered toxic.