Wheat grain Cd concentration and uptake as affected by timing of fertilizer N application.

Li, X., Ziadi, N., Bélanger, G., Yuan, W., Liang, S., Xu, H., and Cai, Z.-C. (2013). "Wheat grain Cd concentration and uptake as affected by timing of fertilizer N application.", Canadian Journal of Soil Science, 93(2), pp. 219-222. doi : 10.4141/cjss2012-041  Access to full text

Abstract

The effect of a single N application (120 kg ha-1) at seeding on wheat (Triticum aestivum L.) grain Cd concentration and uptake was compared with an equally split N application (seeding and the stem elongation stage) in a field experiment at 12 site-years. Averaged across all site-years, the single N application tended to reduce wheat grain Cd concentration (58 vs. 68 µg kg-1 DM) and uptake (151 vs. 191 mg ha-1) compared with the split application. The Cd concentrations, however, never exceeded the maximum acceptable level for Cd in wheat grain. A single N application at seeding might reduce the risk of high grain Cd concentration in spring wheat.

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