Published in Scientific Papers. Series A. Agronomy, Vol. LXVII, Issue 1
Written by Mihaela BĂLAN, Oana Alina NIȚU, Cristian POPESCU
The research was carried out at the Experimental Centre for Grassland Culture, located in Preajba in the Gorj County, on a Stagnic Luvisol on a relief with a 10-12% slope, on parent material represented by fluvial terrace deposits, where the depth of groundwater is 5-10 m with a natural vegetation represented by grassland with acidophilus species which is characterised by a profile of type Aț, Ao, El(w), ElBt, Bt1(w), Bt2(w). These consisted in setting up an experiment on natural grassland with 3 versions and 3 repetitions, following the method of isolated blocks, in order to highlight the evolution of soil agrochemical properties under the influence of erosion and mineral fertilisation. Research has shown that mineral fertilisation had beneficial effects both on yields and indirect effects on soil protection against loss of humus and fertilising elements. Thus, the evolution of the agrochemical properties of the soil in the experimental versions is influenced by the amount and intensity of rainfall, the mass of eroded soil, the degree of vegetation cover and the doses of fertilisers applied.
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