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| Simon, A.; Levin, Kain; Cyffka, L-S; Simon, R.; Reents, Hans Jürgen; Hülsbergen, Kurt-Jürgen. |
| Biogas digestate is a by-product of the biogas process and contains high amounts of nitrogen, which makes it a valuable organic fertiliser. In a field trial near Freising, different crop rotations for biogas production were established in 2004/05 and fertilised with digestate only or were not fertilised (controls). A wide range of methods for soil analysis was used between 2013 and 2015 to identify the methods capable of showing a biogas digestate effect on soil quality. We learned that aggregate stability, C and N contents, and the number of earthworms showed significant differences between fertilised and unfertilised plots, while pH, water infiltration, bulk density and pore size distribution were not able to show biogas effects. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil biology; Nutrient turnover. |
| Ano: 2017 |
URL: http://orgprints.org/31560/1/Untersuchung%20der%20Auswirkungen%20von%20%C3%B6kologisch%20erzeugten.pdf |
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| Reents, Hans Jürgen; Levin, Kain. |
| The effects of Biochar and combinations with organic manures on plant biomass and soil properties were tested in a lab experiment with two different soils. Highest applications (10%) of Biochar alone implicated a plant growth decrease while the manure combinations increased biomass, especially in the Luvisol. This positive reaction was not detected in the Regosol during the experiment. Increasing rates of the different amendments decreased soil bulk density, especially in the Luvisol. Manures increased soil respiration, Biochar had nearly no effect. In order to improve soil fertility, combining Biochar with organic N-fertiliser is recommended. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil quality; Soil. |
| Ano: 2013 |
URL: http://orgprints.org/21375/7/21375_reents.pdf |
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