Record Display for the EPA National Library Catalog


Main Title Water quality control through single crop agriculture, no. 4 /
Author Lundberg, Kenneth R., ; Trihey., Patrick T.
CORP Author Bemidji State Coll., Minn. Center for Environmental Studies.;Robert S. Kerr Environmental Research Lab., Ada, Okla.
Publisher National Environmental Research Center, Office of Research and Development, U.S. Environmental Protection Agency, For sale by the National Technical Information Service.
Year Published 1975
Report Number EPA-660/2-75-026; EPA-R-802168; EPA-16080-FQV
Stock Number PB-247 617
OCLC Number 01910336
Subjects Wild rice--Environmental aspects--Minnesota--Clearwater Soil and Water Conservation District. ; Water quality--Minnesota--Clearwater Soil and Water Conservation District.
Additional Subjects Water pollution ; Rice plants ; Agricultural wastes ; Water quality ; Nitrogen ; Phosphorus ; Surface waters ; Concentration(Composition) ; Clearwater River ; Sampling ; Algae ; Peat ; Fertilizers ; Soils ; Bioassay ; Runoff ; Minnesota ; Zizania aquatica
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 660-2-75-026 Headquarters Library/Washington,DC 06/15/2015
ELBD RPS EPA 660-2-75-026 repository copy AWBERC Library/Cincinnati,OH 02/03/2020
EMBD  EPA/660/2-75/026 NRMRL/GWERD Library/Ada,OK 09/29/1995
NTIS  PB-247 617 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vii, 116 pages : illustrations ; 27 cm.
A study was conducted to determine effects on water quality from flooded paddies used for the commercial culture of wild rice, Zizania aquatica. Water samples were taken from flooded impoundments on fertilized peat and mineral soils as well as unfertilized peat soils. Weekly changes in the chemical and physical parameters of water entering, within, and discharged from paddies were measured through the summer. No significant changes were observed in the receiving waters until fall draindown occurred when increases in dissolved solids, total Kjeldahl-nitrogen and total phosphorus occurred in the Clearwater River. Algal assay tests indicated that the increase in nutrients at peak discharge was sufficient to increase algal populations. The quantities of nutrients released from rice paddies were not significantly greater than would be expected in normal runoff in the area and much less than the amounts released from most agricultural endeavors. Portions of this document are not fully legible.
"Grant no. 802168: ROAP 21 ASH, Task 17; program element 1BB045." "June 1975." Report prepared by Center for Environmental Studies, Bemidji State College, Bemidji, Minnesota. Series statement incorrectly listed on cover as: Ecological Research series. Includes bibliographical references (pages 71-74).