Effect of fertilizer and irrigation on leachate levels of NH4-N, NO3-N and P in container production of Nephrolepis exaltata 'Fluffy Ruffle'

Conover, C. A.; Poole, R. T.

Nitrogen leaching into surface aquifers is increasing as a problem in several areas of the USA, and with it the potential for regulation of foliage plant producers. A factorial experiment evaluated liquid and controlled-release fertilizer sources at 3 irrigation levels (100, 200 or 300 ml/15-cm pot twice weekly) for NH4-N, NO3-N and P in leachate. Samples were collected weekly for 12 weeks, beginning in the last week of Sep.