Lato K.I.,Banats University of Agricultural science Timisoara |
Nita L.,Banats University of Agricultural science Timisoara |
Lato A.,Banats University of Agricultural science Timisoara |
Radulov I.,Banats University of Agricultural science Timisoara |
And 2 more authors.
Journal of Food, Agriculture and Environment | Year: 2013
The objective of this study was to wrap the soils from Bârzava Plain in favorability classes for the main agricultural utilizations, according to their physical and chemical characteristics. The purpose of this study is that the farmers could practice a sustainable agriculture in this area. Bârzava Plain is located on the western part of Romania, covers an area of 54,250 ha and is part of the great physical-geographical unit called Banat Plain. Bârzava Plain is considered a glacis plain, slightly terraced and is divided into several sectors. From an altitudinal point of view, it is a high plain formed on river-lake deposits. River - lake deposits consist of fluvial-lacustrine deposits of Carpathian origin rains, which are composed of heterogeneous gravels, sands and marls. Superjacent, these deposits are covered by a thin blanket of clays that have a high percentage of expandable minerals. According to the Romanian System of Soil Taxonomy, in the studied area there are the following types of soils: fluvisols on 3645.2 ha (6.72%), chernozems on 3778 ha (6.97%), phaeozems on 275 ha (0.5%), eutric cambisols on 2873.9 ha (5.3%), haplic luvisols on 21,392.9 ha (39.2%), luvisols on 2973 ha (5.49%), gleysols on 1668.6 ha (3.08%), stagnosols on 1668.6 ha (3.08%), vertisols on 15,002 ha (27.66%) and erodisols on 972.2 ha (1.80%). Depending on the physical and chemical soil properties evaluation notes were calculated as follows: Y = (X1 × X2 × X3 ×........ X17) × 100. where Y = note of evaluation and X1,...., X17 are indicators of evaluation. In accordance with the notes of evaluation for agricultural land the classification of soils in five suitability classes was obtained as follows: Class I from 81 to 100 points - very suitable; Class II from 61 to 80 points - suitable; Class III from 41 to 60 points - medium suitable; Class IV from 21 to 40 points - less suitable; Class V from 0 to 20 points - unsuitable.