Procena uticaja navodnjavanja višegodišnjih zasada na stabilnost strukturnih mikroagregata i rizik od stvaranja pokorice / Assessment of the perennial plants irrigation impact on the structural microaggregates stability and the risk of the soil crusting
2016
Pivić, Radmila (Institut za zemljište, Beograd (Srbija)) | Maksimović, Jelena (Institut za zemljište, Beograd (Srbija)) | Ferdinando, Margarino (Institut za zemljište, Beograd (Srbija)) | Dinić, Zoran (Institut za zemljište, Beograd (Srbija)) | Jošić, Dragana (Institut za zemljište, Beograd (Srbija)) | Stanojković-Sebić, Aleksandra (Institut za zemljište, Beograd (Srbija))
The soil structure is very dynamic measure, especially in the topsoil horizon, given that changes can occur under the influence of climatic factors, cultivated plants, amelioration measures and tillage. In the area of the Danube region, in September 2015, it was conducted the study on the effect of the perennial plants irrigation on the structural microaggregates stability and the risk of the soil crusting on three selected locations in agricultural soil samples taken from the surface layer (0-30 cm). In the analysed soil samples in disturbed state it was determined the ratio between the total content of particles of less than 0.002 mm (clay) in soil samples prepared with sodium pyrophosphate and the content of such particles in soil suspension prepared with water. The degree of the stability of microaggregates was expressed according to Vageler, in relation to their estimated stability index. The risk of the soil crust formation was determined according to a Van der Watt & Claassen pattern. The obtained results showed that the soil samples have stable to very stable degree of the structural microaggregates stability and that an irrigation did not significantly affect the analysed parameter. In the analysed samples the risk of the soil crusting is high to borderline.
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