Effects of Scheduling Municipal Waste-Water Effluent Irrigation of Reed Canarygrass on Nitrogen Renovation and Grass Production
1981
Linden, D. R. | Clapp, C. E. | Gilley, J. R.
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.
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