Abstract
During the regular control of soil fertility in the Rasina District, it was established that the plots of land were distributed across Vertisol, Eutric Cambisol and Fluvisol types of soils, and to a lesser extent on Pseudogley and Ranker. The tested samples had different textures - sandy loam and loam, clay-sandy loam and clay loam, and clay. Plots of land that were of very acidic and acidic reactions were predominant, with medium amounts of humus, very low amounts of available phosphorus, and high amounts of available potassium. High or very high cation absorption capacity was found in about half of the examined fields; a deficient content of exchangeable Ca was recorded in 22% of plots and that of exchangeable Mg in 16% of plots, while an unfavorable Ca/Mg ratio was measured in 44% of plots. The overall sensitivity to acidification was mainly moderate (50.6% of plots) and strong (20.2% of plots). Very high concentrations of mobile Al, which could be toxic to plants, were found in 5 field plots.
Highlights
One of the most developed agricultural areas of Serbia is the Rasina District, located in the central part of Serbia
During the regular control of soil fertility in the Rasina District, it was established that the plots of land were distributed across Vertisol, Eutric Cambisol and Fluvisol types of soils, and to a lesser extent on Pseudogley and Ranker
This research is primarily guided by the problem of acid and strongly acid arable soils, which are highly distributed in the Rasina District, as determined by previous examinations
Summary
One of the most developed agricultural areas of Serbia is the Rasina District, located in the central part of Serbia. The majority of the examined cadastral parcels capacity, soil texture, the content of organic matter), belong to the vertisol soil type; followed by eutric land use system (unreasonable use of acidic mineral cambisol and fluvisol, while pseudogley and rankers fertilizers), and by the emissions of acidic substances are less present (Map 1). In half of the samples, the soil has the texture of capacity of the soil, i.e. its physical and chemical loam and sandy-clay loam, with very favorable properties Lighter mechanical composition, such as sandy the state of soil fertility, as well as to make an loam, is present in samples on fluvisol and ranker. 2. Materials and methods more favorable mechanical composition in the surface layer, but deeper layers have a higher clay content, The research was conducted on 110 representative surface samples, taken from the agricultural soil of which impedes root system growth, while, in pseudogley, it retains sub-surface water. Results and discussions parcels; about 12% of cadastral parcels had low levels (6–10 mg 100g-1), 10% medium levels
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