Abstract
Abstract Outdoor-grown, containerized, Aronia melanocarpa (Michx.) Ell. and Rhododendron ‘Roseum Elegans’ were grown atop soil-filled boxes that had been recessed into a grassed field in separate studies. Aronia were fertilized with either a single application of controlled-release fertilizer (CRF) or a split application of CRF separated by 36 days. Rhododendron were supplied a single application of CRF and either a standard or excessive irrigation volume on each irrigation day. Soil samples were taken in 30 cm (12 in) layers to a depth of 90 cm (36 in) beneath containers at 14-day intervals and soil NO3-N concentrations were determined. Accumulation of NO3-N was immediate in the 0—30 cm (0–12 in) layer for both species with accumulation of NO3-N in the deeper soil layers occurring later. Split application of a CRF was somewhat effective at reducing NO3-N accumulation at specific times and in specific soil layers, but reductions were not as substantial as studies on NO3-N concentrations in leachate have indicated. The large irrigation volumes used in the irrigation volume study resulted in NO3-N moving rapidly through the soil profile beneath containers.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
