Published in Scientific Papers. Series A. Agronomy, Vol. LXVI, Issue 2
Written by Ioana Andra VLAD, Győző GOJI, Szilard BARTHA
Nitrogen (N), potassium (K), and phosphorus (P) are macronutrients that are paramount for plant physiology. The aim of this research is to evaluate the content and distribution of total N, and mobile K and P in soils historically polluted in the Copșa Mică area. We also calculated an average content of mobile P and K, highlighting the variation of the C/N ratio in the shallow depth layers of the soils within the sample surfaces. The negative impact on the soils of the main polluter of the Copșa Mică area is corroborated with a low total N content, minimal K concentration at the first depth layer, following a trend characterised by extremely low concentrations at the depth of 10-15 cm to extremely low to very low concentrations at the depth of 30-35 cm. The same trend is also noticed in the content of mobile P, the lower concentration classes being favoured in terms of average P content.
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