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Effects of Scheduling Municipal Waste‐Water Effluent Irrigation of Reed Canarygrass on Nitrogen Renovation and Grass Production
Author(s) -
Linden D. R.,
Clapp C. E.,
Gilley J. R.
Publication year - 1981
Publication title -
journal of environmental quality
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 171
eISSN - 1537-2537
pISSN - 0047-2425
DOI - 10.2134/jeq1981.00472425001000040017x
Subject(s) - effluent , phalaris arundinacea , irrigation , environmental science , population , agronomy , wastewater , nitrogen , tonne , environmental engineering , zoology , pulp and paper industry , waste management , chemistry , wetland , biology , ecology , engineering , demography , organic chemistry , sociology
A 2‐year field experiment was conducted to test the performance of reed canarygrass ( Phalaris arundinacea L.) and the removal of nitrogen from municipal waste‐water effluent under varying irrigation schedules. The effluent was obtained from an activated sludge treatment facility that served a domestic suburban population. The 1st‐year total application to the 12‐ by 12‐m plots was about 170 cm of effluent containing 320 kg/ha N, primarily in the ammonia form. The 2nd‐year application consisted of about 290 cm of effluent containing $30 kg/ha N. Treatments during both years were comprised of 1, 2, or 5 irrigations per week. Results indicated that there was no effect of varying the irrigation schedule on the reed canarygrass yields, which averaged 10.2 and 15.0 metric tons/ha during the 1st and 2nd year, respectively. There also was no effect on soil water N concentrations, which averaged 1.0 and 2.4 mg/liter during the 1st and 2nd year, respectively.