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| Registros recuperados: 87 | |
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| Andres, Christian; Blaser, Wilma J.; Dzahini-Obiatey, Henry K.; Ameyaw, George A.; Domfeh, Owusu K.; Awiagah, Moses A.; Gattinger, Andreas; Schneider, Monika; Offei, Samuel K.; Six, Johan. |
| Currently, the only effective treatment for cocoa (Theobroma cacao L.) infected with the cocoa swollen shoot virus disease (CSSVD) is to cut and replant infected trees. Hence, the development of preventive control measures and strategies to mitigate the severity of the disease are of utmost importance. While past research has mainly focused on resistance breeding, mild strain cross protection and vector control, diversification measures such as agroforestry have received relatively less attention, despite their potential to mitigate CSSVD severity. Therefore, we studied the effects of shade on CSSVD symptom severity, capsid damage and cocoa yield along a gradient of increasing shade tree abundance in smallholder cocoa farms in Ghana. Furthermore, we... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection Africa. |
| Ano: 2018 |
URL: http://orgprints.org/32272/1/andres_etal_2018_AgriEcosysEnviron_Vol252_p83-92.pdf |
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| Gattinger, Andreas; Skinner, Colin; Krauss, Maike; Mäder, Paul. |
| Despite the increase in organic cropland, knowledge on the impact of organic farming on soil-derived nitrous oxide (N2O) and methane (CH4) emissions is rather limited. To improve the knowledge base, N2O and CH4 fluxes were investigated in a 571 day lasting cropping sequence in the “DOK” field trial. Two organic and two non-organic farming systems and an unfertilized control were chosen. For the whole monitoring, the two organic systems combined emitted 40% less N2O than the two non-organic ones cumulated on area-scale. Yield-scaled cumulated N2O emissions were nearly 10% lower for the organic systems combined, despite the yield gap of 27%. We found that besides N input, management induced soil quality properties drive differences in N2O emissions between... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil quality; Nutrient turnover; Air and water emissions. |
| Ano: 2019 |
URL: http://orgprints.org/36205/1/Beitrag_278_final_a.pdf |
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| Krause, Hans-Martin; Hüppi, Roman; Leifeld, Jens; El-Hadidi, Mohamed; Harter, Johannes; Kappler, Andreas; Hartmann, Martin; Behrens, Sebastian; Mäder, Paul; Gattinger, Andreas. |
| N2O is a major greenhouse gas and the majority of anthropogenic N2O emissions originate from agriculturally managed soils. Therefore, developing N2O mitigation strategies is a key challenge for the agricultural sector and biochar soil treatment is one reported option. Biochar's capacity to increase soil pH and to foster activity of specialized N2O reducers has been proposed as possible mechanisms for N2O mitigation. An experiment was undertaken to investigate whether changes in the community composition of N2O reducers was observed under field conditions after biochar application. The study objective was to assess the abundance and taxonomic composition of the functional marker genes nosZ and nosZ –II across a vegetation period of Zea mays L. after biochar... |
| Tipo: Journal paper |
Palavras-chave: Soil quality; Crop husbandry. |
| Ano: 2018 |
URL: http://orgprints.org/32767/1/krause-etal-2018-SoilBiolBiochem-vol119-p143-151.pdf |
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| Scheifele, Michael; Buegger, Franz; Fliessbach, Andreas; Mäder, Paul; Schulin, Rainer; Gattinger, Andreas. |
| Results › Carbon mineralization rates were highest in maize straw and lowest in pyrochar amended soil. › Pyrochar showed even lower CO2 fluxes than non-amended soil. › Initial mineralization rates of maize straw and hydrochar were higher in soil M, whereas in Soil D the pyrochar was decomposed slightly faster. › Hydrochar derived carbon was readily incorporated in the microbial biomass of both soils, pyrochar resisted nearly completely. › Comparison of carbon pools CO2 , Cmic and Corg at day 12 and day 205 shows that a stabilsation of maize feedstock of more than a double could be achieved with HTC and far beyond that scale with pyrolysis. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Air and water emissions; Soil. |
| Ano: 2013 |
URL: http://orgprints.org/25774/1/Scheifele_et_al_Biochar_degratdation_2013_def.pdf |
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| Knebl, Lucas; Blumenstein, Benjamin; Möller, Detlev; Wufka, André; Brock, Christopher; Gattinger, Andreas. |
| In einem Feldversuch auf zwei Standorten (Lehm, Sand) wurde in zwei Serien der Einfluss der Stroh-Aufbereitung auf dessen Umsatz im Boden untersucht. Die untersuchten Düngervarianten umfassten: Stroh (STR) sowie Stroh mit zusätzlicher Stickstoffgabe in Form von Hühnertrockenkot (STR+N), Rottemist (RM) und flüssigem, wie trockenem Gärrest (GRflüssig, GRtrocken) aus der Strohvergärung mit Hühnertrockenkot. Das Stroh der Varianten STR und STR+N wurde nach Ernte der Vorfrucht (Sommergetreide) eingearbeitet. Die restlichen Varianten wurden im Frühjahr appliziert. Um den Umsatz der Düngervarianten zu erfassen wurde die Produktion von CO2, N2O und CH4 in regelmäßigen Abständen an beiden Standorten gemessen. Zusätzlich erfolgte die Erhebung von Kohlenstoff- und... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover. |
| Ano: 2019 |
URL: http://orgprints.org/36243/1/Beitrag_319_final_a.pdf |
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| Bautze, Lin; Nicolay, Gian L.; Meier, Matthias; Gattinger, Andreas; Müller, Adrian. |
| Climate change increases the number of risks for agricultural production in arid and semiarid regions, especially in Western Africa. Smallholder farmers are particularly vulnerable to climate change risks. These risks affect their socioeconomic situation, as well as the local food sector value chain in general. Therefore, their food security is threatened if smallholder farming structures do not adapt to them. Thus, effective climate change adaptation measures for smallholders are essential and should be implemented without delay. However, success hinges on the acceptance of the promoted measures among various stakeholders. Thus, their acceptance needs to be assessed before promoting. The project “The potential of sustainable land-use systems to promote... |
| Tipo: Book chapter |
Palavras-chave: Air and water emissions; Policy environments and social economy; Africa. |
| Ano: 2018 |
URL: http://orgprints.org/34706/1/Bautze-etal-2018_ReferenceWorkEntry_ClimateChangeAdaptationThrough-Chapter-p1-15.pdf |
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| Gattinger, Andreas; Oehen, Bernadette. |
| Les producteurs et productrices bio contribuent depuis longtemps à la protection du climat. De nombreuses directives de Bio Suisse vont dans cette direction: Interdiction des transports aériens, limitation des concentrés, interdiction des engrais de synthèse etc. Cette fiche technique montre les interactions entre le changement climatique et l'agriculture et présente des mesures supplémentaires pour diminuer les émissions de gaz à effet de serre dues aux entreprises agricoles biologiques. |
| Tipo: Book |
Palavras-chave: Air and water emissions. |
| Ano: 2013 |
URL: http://orgprints.org/25263/1/1579-climat.pdf |
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| García-Palacios, Pablo; Gattinger, Andreas; Bracht-Jørgensen, Helene; Brussaard, Lijbert; Carvalho, Filipe; Castro, Helena; Clément, Jean-Christophe; De Deyn, Gerlinde; D’Hertefeldt, Tina; Foulquier, Arnaud; Hedlund, Katarina; Lavorel, Sandra; Legay, Nicolas; Lori, Martina; Mäder, Paul; Martínez-García, Laura B.; Martins da Silva, Pedro; Müller, Adrian; Nascimento, Eduardo; Reis, Filipa; Symanczik, Sarah; Paulo Sousa, José; Milla, Rubén. |
| 1. Organic farming (OF) enhances top soil organic carbon (SOC) stocks in croplands compared with conventional farming (CF), which can contribute to sequester C. As farming system differences in the amount of C inputs to soil (e.g. fertilization and crop residues) are not enough to explain such increase, shifts in crop residue traits important for soil C losses such as litter decomposition may also play a role. 2. To assess whether crop residue (leaf and root) traits determined SOC sequestration responses to OF, we coupled a global meta-analysis with field measurements across a European-wide network of sites. In the meta-analysis, we related crop species averages of leaf N, leaf-dry matter content, fine-root C and N, with SOC stocks and sequestration... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Soil quality. |
| Ano: 2018 |
URL: http://orgprints.org/32747/1/Garcia-Palacios-etal-2018-JApplEcol-online-p1-10.pdf |
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| Thoms, Carolin; Gattinger, Andreas; Jacob, Mascha; Thomas, Frank M.; Gleixner, Gerd. |
| We investigated the link between aboveground and belowground diversity in temperate deciduous forest ecosystems. To this end, we determined the effects of the tree species composition on the biomass and composition of the soil microbial community using phospholipid fatty acid (PLFA) profiles in the Hainich National Park, a deciduous mixed forest on loess over limestone in Central-Germany. We investigated the effects of the leaf litter composition on the microbial community, hypothesizing that distinctive leaf litter compositions increase signature PLFAs. In addition, we studied the impact of clay content, pH and nutrient status of the soil on the microbial community in different surface soil layers. Consequently, soil was sampled from depths of 0–5 cm,... |
| Tipo: Journal paper |
Palavras-chave: Soil. |
| Ano: 2010 |
URL: http://orgprints.org/26368/1/Thoms_etal_2010_SBB42.pdf |
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| Lori, Martina; Symanczik, Sarah; Mäder, Paul; Efosa, Norah; Jaenicke, Sebastian; Buegger, Franz; Tresch, Simon; Goesmann, Alexander; Gattinger, Andreas. |
| The majority of soil organic nitrogen (N) is bound in protein-like compounds and therefore its proteolysis in peptides and amino acids is considered the initial and rate limiting step of N mineralization. Proteolysis of N bound in organic fertilizer and subsequent provisioning for crops is a central element in agro-ecological intensification. Long-term farming system effects on N provisioning from organic fertilizer to crops and its underlying functional microbial communities were analyzed in experiments conducted in soils from the “DOK” system comparison trial (bio-Dynamic, bio-Organic, and “Konventionell”) subjected to optimal and future projected drought scenarios. A plant nutrition experiment using 15N labeled lupine as a fertilizer (green manure)... |
| Tipo: Journal paper |
Palavras-chave: Soil quality; Composting and manuring. |
| Ano: 2018 |
URL: http://orgprints.org/33347/1/lori-etal-2018-forntEnvSci_online_doi103389fenvs201800040.pdf |
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| Müller, Adrian; Aguilera, Eduardo; Skinner, Colin; Gattinger, Andreas. |
| A recent study by McGee (Agriculture and Human Values, 32, 255–263, 2015) from the University of Oregon has led to discussions in international media and on the web. This study addresses an interesting question and applies advanced statistics for its analysis. However, we identify several methodological flaws that invalidate the results. First, McGee tests a hypothesis that does not correspond to his main question and which does not allow McGee to derive the conclusions that are drawn in his paper and reported in the media coverage. Second, the data used are not adequate for the analysis because: i) the dependent variable does not reflect the greenhouse gas emissions characteristics of organic agriculture (e.g. different emission factors in organic and... |
| Tipo: Journal paper |
Palavras-chave: Crop husbandry; Air and water emissions; Policy environments and social economy. |
| Ano: 2016 |
URL: http://orgprints.org/30373/1/Muller-etal-AgHumVal-2016.pdf |
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| Skinner, Colin; Krauss, Maike; Conen, Franz; Hansen, Sissel; Mayer, Jochen; Neftel, Albrecht; Mäder, Paul; Gattinger, Andreas. |
| Organic farming systems provide multiple environmental benefits. Concerning climate change they have a substantial mitigation potential. Skinner et al. (2014) evaluated with Meta-Analysis the global dataset on comparative field measurements of soil greenhouse gas (GHG) fluxes under organic and non-organic agricultural management that have been published by the end of 2012. They showed that for arable land-use under organic management compared to non-organic 1) the cumulated area-scaled N2O emissions are about 15 % lower, 2) yield-scaled N2O emissions are slightly higher and 3) CH4 uptake is higher. However, this database is thin and further field measurements covering whole crop rotations are needed to close knowledge gaps. Therefore soil GHG fluxes are... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil. |
| Ano: 2015 |
URL: http://orgprints.org/26920/2/26920_skinner.pdf |
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| Gattinger, Andreas; Müller, Adrian; Haeni, Matthias; Skinner, Collin; Fliessbach, Andreas; Buchmann, Nina; Mäder, Paul; Stolze, Matthias; Smith, Pete; El-Hage Scialabba, Nadia; Niggli, Urs. |
| It has been suggested that conversion to organic farming contributes to soil carbon sequestration, but until now a comprehensive quantitative assessment has been lacking. Therefore, datasets from 74 studies from pairwise comparisons of organic vs. nonorganic farming systems were subjected to metaanalysis to identify differences in soil organic carbon (SOC). We found significant differences and higher values for organically farmed soils of 0.18±0.06% points (mean ± 95% confidence interval) for SOC concentrations, 3.50 ± 1.08 Mg C ha−1 for stocks, and 0.45 ± 0.21 Mg C ha−1 y−1 for sequestration rates compared with nonorganic management. Metaregression did not deliver clear results on drivers, but differences in external C inputs and crop rotations seemed... |
| Tipo: Journal paper |
Palavras-chave: Soil; Environmental aspects. |
| Ano: 2012 |
URL: http://orgprints.org/21735/1/Gattinger-etal-2012-PNAS-vol109-44.pdf |
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| Registros recuperados: 87 | |
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