Effect of biowaste compost and nitrogen fertilization on water properties of Mollic-gleyic Fluvisol
T. Głąb 1
T. Zaleski 2
E. Erhart 3
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Department of Machinery Exploitation, Ergonomics and Agronomy Fundamentals, University of Agriculture, Balicka 116 B, 31-149 Cracow, Poland
Department of Soil Science and Soil Protection, University of Agriculture, Mickiewicza 21, 31-120 Cracow, Poland
BioForschungAustria, formerly Ludwig Boltzmann-Institute for Biological Agriculture and Applied Ecology, Rinnboeckstrasse 15, 1110 Vienna, Austria
Int. Agrophys. 2009, 23(2): 123–128
The effect of biowaste compost and nitrogen fertilization on the soil water properties was tested in a long-term crop rotation experiment established in 1992 on a silty loam Mollic-gleyic Fluvisol in eastern Austria in the field trial different biowaste compost and mineral fertilizers were applied. Results were compared also with an untreated control. Soil samples were collected in 2005 and the water retention, saturated hydraulic conductivity and characteristics of pores were determined. Based on the water retention characteristics the pore-size distribution was established. The dominant pore fraction consisted of storage (0.5-50 µm) and transmission (50-500 µm) pores, having a total volume of more than 0.1 cm3 cm-3. Fertilization was found not to influence the amount of storage pores, and did not produce any differences in available and productive water retention. The main conclusion of this study is that long-term application of compost and nitrogen fertilizers did not have any significant influence on bulk density, water retention, pore-size distribution and the satura- ted hydraulic conductivity.