DOI: 10.5593/SGEM2014/B52/S20.045


D. Moigradean, D. M. Bordean, M. A. Poiana,S. Alda,. I. Pet
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-18-6 / ISSN 1314-2704, June 19-25, 2014, Book 5, Vol. 2, 335-342 pp

The main objective of this study is to investigate the effect of different mineral
fertilization doses on the heavy metals bioaccumulation rates in tomato fruit grown in Romanian Western Plain area. The experience was done in a cambic cernosium soil, with low acidity reaction, very good content in nitrogen, phosphorus and potassium and the high natural fertility potential favorable vegetables cultivation. The studied area presented normal levels of heavy metals. The study was performed on control soil samples (without fertilizers) and soil samples after differentiated NPK fertilization in variable dozes: N30P30K30, N45P45K45, N60P60K60 and N120P60K60. The order of accumulation of heavy metals in soil samples was: Fe > Mn > Zn > Ni > Pb > Cu > Cr > Co > Cd. Tomato showed the highest bioaccumulation rate a N30P30K30 fertilization doses for manganese (0.442%), cooper (15.00%) and zinc (6.494%), a N60P60K60 fertilization doses for iron (0.152%) and a control sample for nickel (1.048%). The order of heavy metals bioaccumulation rate in tomato fruit was: Cu > Zn > Ni > Fe > Mn. The different doses of mineral fertilizers were applied to tomato crop soil determined different bioaccumulation rate in tomato fruit.

Keywords: tomato, mineral fertilization, bioaccumulation rates, heavy metals