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| Wichern, Florian; Arnim, Sophie-Marie; Herm-Stapelberg, Antonia; Höing, Marius; Joppen, Barbara; Lehnert, David; Müller, Vincent; Neuhaus-Gea Navarro, Tamara; Schwalb, Sanja; Zilberman, Orian; Watson, Conor. |
| Organic agriculture (OA) soils have often been shown to have a higher soil microbial biomass (SMB), microbial activity (MA) and a higher soil organic matter (SOM) content than conventional soils. The objectives of this study were to assess the soil fertility of an organically and a conventionally managed field and to ascertain whether BSc students of the study program “Sustainable Agriculture” could assist in regular soil biological field measurements to monitor the effect of farming systems on soil health. Soil samples from both sites were analysed for SOM, pH, water holding capacity, SMB and MA. The results confirmed previous findings of a higher MA, a larger SMB and a higher SOM content under OA. In contrast to other results, the microbial quotient was... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil biology; Systems research and participatory research; Research communication and quality. |
| Ano: 2015 |
URL: http://orgprints.org/26919/1/26919_wichern.pdf |
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| Hupe, Anke; Näther, Franziska; Schulz, Hannes; Jörgensen, Rainer Georg; Heß, Jürgen; Wichern, Florian. |
| Below-ground plant N (BGN) of grain legumes is an important N pool for subsequent crops. Especially the easily available rhizodeposits (RD) provide an important N input, which might also be relevant in mixed stands. The objective of the present study was to estimate the time course of the BGN, especially RD-N, and the effect of mycorrhization on RD-N. Therefore, the quantity of RD-N of peas with and without mycorrhiza (Frisson and P2) was estimated at four different growth stages. The results show that the relative contribution of BGN to total plant N was equal in both varieties during the growing season. The contribution of RD-N to total plant N decreased over time. Mycorrhization did not affect the quantity of N-rhizodeposition. Consequences for mixed... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil. |
| Ano: 2015 |
URL: http://orgprints.org/26935/1/26935_hupe.pdf |
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