Developing a critical nitrogen dilution curve for forage brassicas

Defining the critical nitrogen concentration (Nc; g N kg−1) for maximum growth of forage brassicas will aid in the fertilizer management of these crops. Typically, the Nc value decreases with increasing crop biomass. In this paper, we used a nitrogen (N) response experiment with kale (Brassica olera...

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Bibliographic Details
Published in:Grass and forage science 2012-03, Vol.67 (1), p.13-23
Main Authors: Fletcher, A.L., Chakwizira, E.
Format: Article
Language:English
Subjects:
brassica
fertilizer management
nitrate
nitrogen
nitrogen nutrition index
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Summary:Defining the critical nitrogen concentration (Nc; g N kg−1) for maximum growth of forage brassicas will aid in the fertilizer management of these crops. Typically, the Nc value decreases with increasing crop biomass. In this paper, we used a nitrogen (N) response experiment with kale (Brassica oleracea) to define a critical N dilution (Nc = 55·3 × biomass−0·47). However, at biomass
ISSN:0142-5242
1365-2494
DOI:10.1111/j.1365-2494.2011.00830.x