Phosphorus and limestone application effect on the levels of soil and foliar Cd of olive trees
1998
Dias, J.C.S. | Jordao, P.V. | Marcelo, M.E. | Dias, R.M.S. | Lopes, J.I.
Cadmium (Cd) is an element that may become toxic both to humans and plants. One of the main sources of Cd contamination of agricultural soils is phosphate fertilizers obtained from phosphate rocks rich in this heavy metal. The present work aims to examine the effect of phosphate fertilization and liming on both soil and leaf Cd concentrations of an experimental olive grove submitted to a long-term fertilizer trial, eight years after its start. The olive grove is installed on a schist soil, and it is located in Mirandela, the concentration of total Cd in the soil and the olive tree leaves. Leaf Cd concentrations were within the range considered non toxic to plants
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