Behaviour of chemical elements in plant species growing in contaminated by oil products alluvial-meadow soil (fluvisols)
1998
Dimitrov, D. | Mitova, I. (Institut po Pochvoznanie i Agroekologiya "N. Pushkarov", Sofia (Bulgaria))
The entrance of N, P, K, Na, Ca, Mg, Cu, Zn, Fe, Mn and Al has been investigated in seven wild plant species growing on Alluvial-Meadow soil contaminated by oil products (1,5 - 2,5 g/kg). Unauthentic increase of the average values of N, K, Ca, Mg, Fe, and an authentic one (P - 0,05) for Cu and Mn have been determined in the plants from the areas contaminated by oil products. Under such conditions, the average values of Na, Zn and Al decrease unauthentically, while the values of P remain constant. By means of correlative analysis was established that in soil contaminated by oil products antagonistic relationships occur between K and Na, Na and Mn, P and Mn. The changes of the average values of the equivalent relationships between K/Na, Fe/Zn, P/Mn and Na/Mn were confirmed at (P; 0,05 - 0,01).
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