Journal of Food, Agriculture and Environment

Evolution of soil properties influenced by soil usage and soil tillage system

Author(s):

Paula Ioana Moraru, Teodor Rusu

Recieved Date: 2011-02-10, Accepted Date: 2011-04-08

Abstract:

The present paper presents the evolution of luvisol in its 40 years use as arable soil (with conventional working system) in comparison with its profile in hay field use within the same ecologically homogenous terrain. The worked stratum (Ap) had a different structure and settlement compared to hayfield. The texture differentiation was intensified, the texture differentiation index increased from 1.12 to 1.2. The pseudogleization phenomenon was accentuated in A/Bw horizon. The drop of humus reserves in the first 50 cm of depth, being 151 t/ha in the grassland profile compared to 134 t/ha in the arable profile, is a consequence of intensifying the mineralization processes. A slight soil compaction observed in the arable and sub-arable horizons, was indicated by an increase of bulk density from 1.27-1.43 to 1.39-1.46 g/cm³. The pH dicreased in the Ap horizon from 5.20 to 5.17 and rose in the sub-arable horizon with 0.52 units. The P supply increased in the Ap horizon from 2 to 16-17 ppm as a result of fertiliser application. When changes of arable soil properties were followed by a 10 years application of 4 working systems of soil (conventional, paraplow, chisel plow and rotary harrow), minimum tillage systems increased humus content with 13.9-22.1% and hydro stabile aggregate content with 4.7-13.6% at 0-30 cm depth compared to the conventional system.

Keywords:

Soil usage, soil tillage, soil properties

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Journal: Journal of Food, Agriculture and Environment
Year: 2011
Volume: 9
Issue: 2
Category: Environment
Pages: 710-713

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