Original scientific paper
https://doi.org/10.5513/JCEA01/17.2.1720
Which soil tillage is better in terms of the soil organic matter and soil structure changes?
Vladimír ŠIMANSKÝ
; Department of Soil Science, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
Nora POLLÁKOVÁ
; Department of Soil Science, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
Jerzy JONCZAK
; Warsaw University of Life Sciences, Department of Soil Environment Sciences, Nowoursynowska Str. 159, 02-776 Warsaw, Poland
Michał JANKOWSKI
; Department of Soil Science and Landscape Management, Faculty of Earth Sciences, Nicolaus Copernicus University, Lwowska 1, 87-100 Toruń, Poland
Abstract
This study was performed to evaluate effects of minimum (MT) and conventional tillage (CT) on soil organic matter and soil structure in haplic Chernozems and mollic Fluvisols. The content of soil organic carbon (Corg) as well as parameters of stability and vulnerability of soil structure were quantified. The results showed that soil type had statistically significant influence on Corg. In haplic Chernozems the Corg content near the surface (0–0.1 m) was significantly higher under MT (by 6%) compared to CT, however, in layer 0–0.3 m under CT the average Corg content was by 16% higher than under MT. In mollic Fulvisols under MT, the average Corg content (17.5 ± 5.4 g*kg-1) was significantly less for the 0–0.3 m layer than the CT (22.7 ± 0.4 g*kg-1). In Chernozems, total content of water-stable micro-aggregates (WSAmi) was higher in MT (90.8%) than in CT (69.5%). In mollic Fluvisols, the average content of WSAmi was higher in CT (62.5%) than in MT (53.2%). The low aggregate stability and the high structure vulnerability were reflected also due to the high contents of WSAmi in both soils. The stability of aggregates was a higher in mollic Fluvisols than in haplic Chernozems. In haplic Chernozems, better soil structure stability was under CT than MT, on the other hand, in mollic Fluvisols, the average value of coefficient of aggregate stability was lower by 32% in CT than MT.
Keywords
haplic Chernozem; mollic Fluvisol; soil organic carbon; tillage systems; vulnerability and stability of soil structure
Hrčak ID:
158944
URI
Publication date:
2.6.2016.
Visits: 1.504 *