Abstract
The paper presents the results of an experiment carried out in controlled conditions, regarding triticale plants growth on a nutritive layer consisting of a mixture of red mud, acid rock and compost, in different proportions. The analytical results highlighted the strongly alkaline reaction of the layer, high organic carbon, mobile phosphorus and potassium contents and low nitrogen contents. The layer has a high salinity and sodium salts are predominant. The total microelements and heavy metals contents are generally acceptable. The triticale plants grew in these conditions up to 10-15 cm height, when the experiment was stopped. The plants accumulated normal nitrogen, calcium and magnesium quantities, low potassium ones, high phosphorus and very high sodium contents. The metallic microelements (copper, iron, manganese, zinc) accumulated at relatively normal levels, but the heavy metals (cadmium, cobalt, chromium, nickel, lead) concentrated up to values several tens of times higher than the normal contents. Introducing the obtained vegetal mass in the nutritive layer will contribute to enhancing its fertility for the next vegetation cycles.
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