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| Kautz, Timo; Athmann, Miriam; Köpke, Ulrich. |
| Large sized, vertical biopores can provide preferential pathways for root growth, hence facilitating the exploration of great soil depths by crop roots. This is of particular importance for organic production systems, where crops are more dependent on nutrient acquisition from the solid soil phase than under conditions of mainstream agriculture. The relevance of biopores for nutrient acquisition from the subsoil can possibly depend on their individual properties. The aim of this study was to test how different chemical pore wall properties affect the growth of barley (Hordeum vulgare L.) roots in large sized biopores. Bulk soil, pore wall material and roots from individual biopores were collected from three depth layers in 45-75 cm soil depth. C and N... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil biology Cereals; Pulses and oilseeds Nutrient turnover. |
| Ano: 2014 |
URL: http://orgprints.org/23806/1/23806_MM.pdf |
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| Meyer, G.; Maurhofer, M.; Frossard, E.; Gamper, H. A.; Mäder, P.; Mészáros, É.; Schönholzer-Mauclaire, L.; Symanczik, S.; Oberson, A.. |
| Soil microorganisms exuding organic acids have the potential to solubilize inorganic phosphorus (P), which could improve the P availability to plants growing on calcareous soil. The gluconic acid exuding bacteria Pseudomonas protegens CHA0 can solubilize P under glucose rich in vitro conditions, but evidence on the effectiveness in soil is lacking. This discrepancy in P solubilization between in vitro and in vivo is common for many P solubilizing bacteria. Possible causes for this discrepancy are rarely explored in soil using mechanism oriented approaches. Proposed reasons for limitation of bacterial P solubilization in soil are low persistence of the inoculant or low glucose availability in the plant rhizosphere. To test these two hypotheses we... |
| Tipo: Journal paper |
Palavras-chave: Cereals; Pulses and oilseeds Nutrient turnover. |
| Ano: 2019 |
URL: http://orgprints.org/36362/1/Meyer-etal-2019-SoilBiolBiocehmistry-Vol131-p217-228.pdf |
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| Schmidtke, Knut; Hof-Kautz, Claudia. |
| Impulsreferate: - Hermann Künsemöller, Landwirt, Mühlenhof, Halle (Westf.) - Wilhelm Bohnsack, Landwirt, Kreiensen‐Erzhausen - Werner Vogt‐Kaute, Naturland-Beratung, Wartmannsroth - Prof. Dr. Maria R. Finckh, Ecological Plant Protection, Witzenhausen Auf der Internetseite der DAFA wird nachvollziehbar aufgezeigt, dass die Notwenigkeit im Leguminosenbereich zu forschen bestehe. Es gäbe viele Hürden: Pflanzenschutz, Bodenfruchtbarkeit, Mikronährstoffe, Fruchtfolgen, Anbaupausen, langfristige Mischkultursysteme. In den letzten 5 bis 6 Jahren wären nur einzelne Projekte im Leguminosenbereich gefördert worden. Die neue Eiweißpflanzenstrategie der Bundesregierung müsse sich daran messen lassen, inwieweit Forderungen aus Praxis, Beratung und Forschung z.B.... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions Cereals; Pulses and oilseeds Nutrient turnover. |
| Ano: 2013 |
URL: http://orgprints.org/24798/1/WS%20WITA%202013%20KLeg.pdf |
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| Mayer, Jochen; Hirte, Juliane; Oberson, Astrid; Lüscher, Andreas; Frossard, Emmanuel; Mäder, Paul; Hammelehle, Andreas. |
| We investigated nitrogen and carbon below ground inputs of soybean, clover-grass and maize and management effects of biological and conventional systems in the DOK long term experiment. We found for soybean increasing below ground C and N inputs with decreasing fertilization intensity whereas those effects were small for clover-grass. Below ground nitrogen inputs of red clover could be estimated by above ground N multiplied with a factor of 0.5. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil quality Cereals; Pulses and oilseeds Nutrient turnover. |
| Ano: 2015 |
URL: http://orgprints.org/27229/1/27229_mayer.pdf |
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