Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

Vol 19, Issue 1, 2017; Page No.(72-78)

STATUS AND OPTIMIZATION OF ARABLE LAND FERTILITY IN LOW-LYING KETTLE CULTIVATED LANDS OF THE CENTRAL ZONE OF THE KRASNODAR TERRITORY

VALENTINA P. VASILíKO, SERGEI V. GARKUSHA, ALEKSANDR S. NAIDENOV, NIKOLAY N.NESHCHADIM AND ALEKSEY M. KRAVTSOV

Abstract

Abstract¬ĖThe research object of this study was plowed field of low-lying kettle cultivated lands of the central zone of Krasnodar Territory, liable to hydromorphism. The authors revealed change in agrophysical properties of these soils, such as compaction of the active root-inhabited layer, destruction of aggregates, reduced aeration rate, and the increase in the amount of moisture content unavailable to plants. The authors note a decrease in the humus and nutrients available to plants and establishthe dependence between soil compaction and the spot levelof the locality, depth of hollows and their specific water catchment area. Soils, subjected to temporary water saturation, have very low water permeability. The article deals with the effect of agricultural techniques, primary soil tillage system and fertilization in the grass-grain-tilled crop rotations on agrophysical indicators, water, air, and nutritionconditions. The authors developed optimal model of the primary tillage system and use of fertilizers, which helps to prevent temporary water saturation and flooding of arable land in low-lying kettle cultivated lands.

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