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| Schjønning, P.; Munkholm, L.J.; Moldrup, P.; Jakobsen, O.H.. |
| Long-term cultivation of soils for arable crops and without application of organic manure is thought to reduce the soil quality for crop production. We studied the porosity of two sandy loam soils from organic dairy farms with a ley cropping system and compared them with a conventionally managed dairy farm growing arable crops only and an arable soil receiving only mineral fertilizers, respectively. Saturated hydraulic conductivity, water retention characteristics, air diffusivity and air permeability were determined in the plough layer of the soil. The soil of one of the organic dairy farms contained many more earthworm burrows and had a significantly larger hydraulic conductivity than the counterpart soil of the conventionally managed dairy farm. In... |
| Tipo: Journal paper |
Palavras-chave: Soil quality; Soil biology. |
| Ano: 2002 |
URL: http://orgprints.org/44/1/manus2.pdf |
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