N.V. Semendyaeva1, L.A. Karlovets1, T.N. Krupskaya2, G.M. Zaharov2
1Novosibirsk state agrarian university
2Siberian scientific research institute of agriculture and agriculture chemicalixation
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Summary. Properties of the chernozem of lixivious Novosibirsk Priobya in long raznovidovy crop rotations – grain, zernoparovy and under permanent wheat – morphological signs, soil density, density of a firm phase of the soil, porosity and porosity of aeration are studied. It is established that existence of forest belts and steam promote strengthening of washing type of a water mode, emergence in a profile of soils of silicic powder and rusty охристых concretions that allowed to translate the chernozem leached in type of lugovato-chernozem soils. Change of morphological signs in the chernozem lixivious have impact on their agrophysical properties. In crop rotations density of a firm phase of the soil increased, soil density increased a little and according to density corresponded to the condensed. Porosity was satisfactory for the arable horizon that testified to creation of optimum conditions for cultivation of crops. The maximum productivity of a spring-sown field was received at a vozdelyvniya by its first culture after steam irrespective of chemicalixation level. On production exit from 1 hectare of the sevoobo-company area the greatest result is received in a grain crop rotation, both on a zero background and against complex chemicalixation.
Keywords: morphological profile, chernozem lixivious, soil density, density of a firm phase of the soil, general porosity, porosity of aeration, crop rotation.