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The effect of nitrogen fertilizer form and foliar application on Cd, Cu and Zn concentrations in carrot

Sylwester Smoleń, Włodzimierz Sady

Department of Soil Cultivation and Fertilization of Horticultural Plants
Faculty of Horticulture, Agricultural University in Kraków
29 Listopada 54, 31-425 Kraków, Poland
e-mail: ssmolen@bratek.ogr.ar.krakow.pl

Two sub-blocks were distinguished in a pot experiment with carrot ‘Kazan F1’ cultivation: with and without plant foliar application. The plants were treated thrice with foliarly applied 2% urea solution, 1% solution of ‘Supervit R’ multicomponent fertilizer and again with 2% urea solution. Nitrogen fertilization used within the sub-blocks included: the control (unfertilized with nitrogen), Ca(NO3)2, NH4NO3, (NH4)2SO4 and CO(NH2)2. The roots of plants fertilized with (NH4)2SO4 contained the largest quantities of Cd and Zn. The forms of fertilizer (N) did not affect carrot Cu concentrations. Foliar application raised Cu contents but had no statistically significant effect on Cd or Zn concentrations in carrot.

Smoleń S., Sady W., 2007. The effect of nitrogen fertilizer form and foliar application on Cd, Cu and Zn concentrations in carrot. Folia Horticulturae 19/1: 87-96.