Optimizing supply and timing of nitrogen application for subirrigated potted chrysanthemums

Barry J. Shelp; Irina Solntseva; William J. Sutton; Geoffrey B. Lum; Christoph W. Kessel

doi:10.1139/cjps-2016-0162

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Barry J. Shelp,^1,* Irina Solntseva,¹ William J. Sutton,¹ Geoffrey B. Lum,¹ Christoph W. Kessel²

¹B.J. Shelp, I. Solntseva, W.J. Sutton, and G.B. Lum. Department of Plant Agriculture, University of
²C.W. Kessel. Ontario Ministry of Agriculture, Food and Rural Affairs, School of Environmental Scienc

^*Corresponding author: Barry J. Shelp (email: bshelp@uoguelph.ca).

Abstract

Two disbudded, potted chrysanthemum cultivars were subirrigated with 9.25, 12.3, and 18.5 mM N during vegetative, but not reproductive growth. At commercial harvest, visible symptoms of N deficiency or differences in plant/inflorescence quality were minimal, whereas N uptake efficiency was dramatically improved at 9.25 and 12.3 mM N.

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Citation Download Citation

Barry J. Shelp, Irina Solntseva, William J. Sutton, Geoffrey B. Lum, and Christoph W. Kessel "Optimizing supply and timing of nitrogen application for subirrigated potted chrysanthemums," Canadian Journal of Plant Science 97(1), 17-19, (18 August 2016). https://doi.org/10.1139/cjps-2016-0162

Received: 20 May 2016; Accepted: 1 August 2016; Published: 18 August 2016