Soil Physical Parameters of the Testing of New Agronomic Decisions on the Haplic Vertisols

I. Dimitrov, M. Nenov, S. Raykov

Abstract: The long-lasting investigations of the application of cultivation practices show the importance of the method when we choose an appropriate agrotechnical decision. The progress of the technological and energetical innovations makes more current the search of the optimum between the necessity of concrete agrotechnical measure and the possibility for minimal negative influence on the soil and its fertility. The purpose of the research is to determine the impact over some basic soil physical parameters of the combination of some agrotechnical measures, also new decisions concerning the cultivation of the soil. In the last investigation it was found that the new decisions in the agrotechniques work on/have influence on some basic physical parameters of the soil – Haplic Vertisols. The accomplishment of line loosening instead of cultivation contributes to the movement of the capillary moisture of the humidity from the deeper layers to the surface which helps for the increase of the arable layer with 2%. At the same time, the bulk density is reduced to 0.05 g/cm3, the hardness – to 10.65 kg/cm2. The part of the pores full with air increases. The combined accomplishment of the pro soil treatments – plowing and harrowing as soon as of the sowing with the rolling of the surface also have positive influence contributing to the supporting of the values of the investigated parameters in more favorable range.

Keywords: Haplic Vertisols; physical parameters; testing of new agronomic decisions

Date published: 2017-02-13