Lica TUTI, D. ŢĂRĂU None
Under natural condition relatively different micro aspect, characteristic of various forms of relief and microrelief on the territory of Nicolae Titulescu, formed and evolved over time that soils differ in terms of both morphologically and in terms of their productive capacity, that fertility. Soil fertility is expressed through their sustainability to increase productivity in relation to ecological requirements and environmental protection. The purpose of this paper aims to inventory the limiting factors (restrictive) of land use for agricultural production and to establish measures to reduce or cancel agropedoameliorative adverse influence the productivity of soils. Objectives and activities which it proposing this theme fall within the current preoccupations of research and agricultural practices in of international and national level for the study, highlighting the nature and intensity of the limiting factors of agricultural production and improvement requirements and grouping land suitability classes in relation to running the study and preparation are part of the doctoral school in Timisoara USAMVB to achieve doctoral thesis on "the foundation ecopedological  the cadastral value on agricultural land in the county Olt". Perimeter investigated is located in the central eastern part of the county Olt and eastern Plains Iminogului(part of the Plain Boianu) in contact with the river Vedea valley to see. Distances from major cities are: approx. 60 Km south-east of Slatina (county) and approx. 25 Km north-east of the city Drăgăneşti-Olt. Land area totals 2015 ha Nicolae Titulescu village land, of wich 1828 ha of arable, 155 ha pasture and 32 ha vineyard. Agricultural science and practice have shown that soil fertility can be continuously increased through measures agrotechnical, agrochemical and land improvement, thus preventing soil exhaustion got in culture theory or the so-called law of decreasing soil fertility. Physical and chemical properties of soil samples were analyzed in the laboratory OSPA Olt under and regulation and their interpretation was performed according to the Methodology Elaboration Soil Studies, Bucharest 1987 (vol. I, II, III). In the studies perimeter, agricultural production is negatively influenced by the restrictions given by some soil properties, land and climate, which show equal intensities, reduces productions different depending on the use of land (arable, pasture, vineyard) so that one and the same land may have restrictions on intensitiesvary his usage. In this research, the factors limiting (restrictive)of agricultural production are represented mainly by climatic conditions, topography and soil. Restrictions refer to conditions which reduce yields and the danger of exploitation of degradation, with the same effect. It is estimated that some restrictions are ameliorated and that the arrangement can be exploited in some land close to optimum conditions and restrictions can not be ameliorated. Grouping land pretability classes was made on the basis of factors limiting agricultural production in relation to existing uses at the time of research (arable, pasture, vineyard). Depending on the nature and intensity of extression of the limiting factors, agricultural land in the territory studied were grouped into three (II, III, IV) categories of suitability for such uses, denoted by roman numerals. In this research, limiting factors (restrictive) of agricultural production are represented by: excess moisture occurs on a ground area of ​​22 ha (1.10%); excess moisture is manifested in a stagnant area of 55 ha( 2,70%); grossly soil texture affects an area of 5 ha (0,25%) and fine texture of a area of 990 ha (49,13%); 5% slope of the ground occurs over an area of 20 ha (1,0%); surface erosion occurs in an area of about. 34 ha (1,70%) ; inundability land by overflow occurs in an area of 23 ha (1,14%); the degree of compaction negatively affects an area of 985 ha (49,0%) ; uniformity manifests land area of 51 ha (2,53%). Agricultural area of 2015 ha of communal territory Nicolae Titulescu fall in class II of pretability.
limiting factors, agricultural land, soil sustaibility, soil improvement
Presentation: oral