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Effect of Organic and Conventional Crop Rotation, Fertilization, and Crop Protection Practices on Metal Contents in Wheat (Triticum aestivum)

Lookup NU author(s): Dr Julia Cooper, Dr Roy Sanderson, Peter Shotton, Andrew Carmichael, Dr Reza Sadrabadi Haghighi, Dr Catherine T├ętard-Jones, Dr Nikolaos Volakakis, Dr Michael Eyre, Professor Carlo Leifert

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Abstract

The effects of organic versus conventional crop management practices (crop rotation, crop protection, and fertility management strategies) on wheat yields and grain metal (Al, Cd, Cu, Ni, Pb, and Zn) concentrations were investigated in a long-term field trial. The interactions between crop management practices and the season that the crop was grown were investigated using univariate and redundancy analysis approaches. Grain yields were highest where conventional fertility management and crop protection practices were used, but growing wheat after a previous crop of grass/clover was shown to partially compensate for yield reductions due to the use of organic fertility management. All metals except for Pb were significantly affected by crop management practices and the year that the wheat was grown. Grain Cd and Cu levels were higher on average when conventional fertility management practices were used. Al and Cu were higher on average when conventional crop protection practices were used. The results demonstrate that there is potential to manage metal concentrations in the diet by adopting specific crop management practices shown to affect crop uptake of metals.


Publication metadata

Author(s): Cooper J, Sanderson R, Cakmak I, Ozturk L, Shotton P, Carmichael A, Haghighi RS, Tetard-Jones C, Volakakis N, Eyre M, Leifert C

Publication type: Article

Publication status: Published

Journal: Journal of Agricultural and Food Chemistry

Year: 2011

Volume: 59

Issue: 9

Pages: 4715-4724

Print publication date: 15/04/2011

ISSN (print): 0021-8561

ISSN (electronic): 1520-5118

Publisher: American Chemical Society

URL: http://dx.doi.org/10.1021/jf104389m

DOI: 10.1021/jf104389m


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