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Tillage and Nutrient Source Effects on Water Quality and Corn Grain Yield from a Flat Landscape

Dates

Year
2004

Citation

Thoma, David P., Gupta, Satish C., Strock, Jeffrey S., and Moncrief, John F., 2004, Tillage and Nutrient Source Effects on Water Quality and Corn Grain Yield from a Flat Landscape: J. Environ. Qual., v. 34, no. 3, p. 1102-1111.

Summary

Beneficial effects of leaving residue at the soil surface are well documented for steep lands, but not for flat lands that are drained with surface inlets and tile lines. This study quantified the effects of tillage and nutrient source on tile line and surface inlet water quality under continuous corn (Zea mays L.) from relatively flat lands (<3%). Tillage treatments were either fall chisel or moldboard plow. Nutrient sources were either fall injected liquid hog manure or spring incorporated urea. The experiment was on a Webster–Canisteo clay loam (Typic Endoaquolls) at Lamberton, MN. Surface inlet runoff was analyzed for flow, total solids, NO3–N, NH4–N, dissolved P, and total P. Tile line effluent was analyzed for flow, NO3–N, and [...]

Contacts

Attached Files

Communities

  • National and Regional Climate Adaptation Science Centers
  • Northeast CASC

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Additional Information

Identifiers

Type Scheme Key
DOI http://sciencebase.gov/vocab/identifierScheme 10.2134/jeq2004.0200

Citation Extension

citationTypeJournal Article
journalJ. Environ. Qual.
parts
typePages
value1102-1111
typeVolume
value34
typeNumber
value3

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