Figure 1

Average brakethrough curve for each treatment as NO3-N concentration (ppm) per pore volume leached. N = 4 per treatment. Mean SD in NO3-N ppm = Control (39.9); Palisade grass (21.5); Ruzigrass (15.4); Maize (9.96).

Average brakethrough curve for each treatment as NO3-N concentration (ppm) per pore volume leached. N = 4 per treatment. Mean SD in NO3-N ppm = Control (39.9); Palisade grass (21.5); Ruzigrass (15.4); Maize (9.96).