2015,    N 4 (20)    

AGROTECHNICS

Savoskina O., Shevtsov V., Gogmachadze G.

Changes in the physical state of sod podzolic loamy soil with its durable experience and Long-term intensity agricultural use

This article describes the agrophysical condition of sod podzolic light loamy soil of long-term multifactorial field experiment in 60 and 100 years after its starting. Especially the worth mentioning is how over time the change in the physical and mechanical composition of the soil in the cultivation of permanent crops and crops rotation with the records of different combinations of organic and mineral fertilizers treatment. The results of measuring of the penetration resistance (hardness) and soil moisture in the 0-20 cm layer are introduced. There is clearly demonstrated the variation spread of the soil hardness, depending on the topography, granule’s size distribution and cultivated crops in the target areas of expertise. It was found that long-term cultivation of the permanent crops causes the gradually increasing of degradation of agrophysical soil conditions. The optimal physical and mechanical properties are maintained on the crop rotation site.

Keywords: SOD-PODZOLIC LOAMY SOIL, LONG-TERM FIELD EXPERIENCE, AGROPHYSICAL PROPERTIES