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| Registros recuperados: 36 | |
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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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| Jacobi, Johanna; Andres, Christian; Schneider, Monika; Pillco, Maria; Calizaya, Patricia; Rist, Stephan. |
| This study compares aboveground and belowground carbon stocks and tree diversity in different cocoa cultivation systems in Bolivia: monoculture, simple agroforestry, and successional agroforestry, as well as fallow as a control. Since diversified, agroforestry-based cultivation systems are often considered important for sustainable development, we also evaluated the links between carbon stocks and tree diversity, as well as the role of organic certification in transitioning from monoculture to agroforestry. Biomass, tree diversity, and soil physiochemical parameters were sampled in 15 plots measuring 48 × 48 m. Semi-structured interviews with 52 cocoa farmers were used to evaluate the role of organic certification and farmers’ organizations (e.g., cocoa... |
| Tipo: Journal paper |
Palavras-chave: Crop husbandry Values; Standards and certification Bolivia. |
| Ano: 2014 |
URL: http://orgprints.org/24833/1/Jacobi-etal-2013-AgrarforstrySyst-online.pdf |
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| Utz, Claudia; Zweifel, Juliana; Mandloi, Lokendra S.; Patel, Dharmendra; Verma, Rajeev; Andres, Christian; Bhullar, Gurbir S.; Studer, Christoph. |
| Home-made organic pest control products offer an ecological, healthy and low-cost alternative to ready-made products available for organic cotton farmers in the Nimar region. Yet the recipes are not standardized and the products vary in quality and concentration of the active ingredients. bioRe®, together with the Research Institute of Organic Agriculture (FiBL), engages in research activities to address this challenge and constantly improve pest management strategies in organic farming. The research activities are carried out as a combination of on-station trials and participatory on-farm trials with the farmers. During the cotton cropping season 2013-14 one on-station and two on-farm trials were conducted with the objective of comparing different... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Systems research and participatory research Technology transfer Crop health; Quality; Protection. |
| Ano: 2014 |
URL: http://orgprints.org/27527/1/Beitrag_Utz_etal_HAFL_symposium_2014.pdf |
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| Andres, Christian; Bhullar, Gurbir S.. |
| Rapid population growth, increasingly complex economies and novel industrial uses of agricultural products call for further intensification of agriculture, particularly in the tropics. How to achieve sustainable intensification of food production systems in tropical regions that are challenged by ongoing climate change, loss of natural resources and biodiversity is a matter of debate. Here we highlight the major knowledge gaps in agricultural research and policy that must be addressed to develop adequate governance and regulatory frameworks for sustainable agricultural intensification. They include quantification of the (i) value of (public/private) goods generated by ecosystem services, (ii) costs to conserve the natural resources and biodiversity that... |
| Tipo: Journal paper |
Palavras-chave: Recycling; Balancing and resource management Biodiversity and ecosystem services. |
| Ano: 2016 |
URL: http://orgprints.org/29722/1/andres-bhullar-2016-fenvs-04-00005.pdf |
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| Andres, Christian; Forster, Dionys; Verma, Rajeev; Zundel, Christine; Messmer, Monika; Mäder, Paul; Bhullar, Gurbir S.. |
| The debate on the relative benefits of conventional and organic farming systems has in recent time gained significant interest. So far, global agricultural development has focused on increased productivity rather than on a holistic natural resource management for food security. Thus, developing more sustainable farming practices on a large scale is of utmost importance. However, information concerning the performance of farming systems under organic and conventional management in tropical and subtropical regions is scarce. This study presents agronomic and economic data from the conversion phase (2007-2010) of a farming systems comparison trial on a Vertisol soil in Madhya Pradesh, central India. A cotton-soybean-wheat crop rotation under biodynamic,... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Systems research and participatory research Cereals; Pulses and oilseeds India. |
| Ano: 2014 |
URL: http://orgprints.org/28012/1/Andres_etal_2014_1stConferencGlobalFoodSecurity.pdf |
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| Mandloi, Lokendra S.; Patel, Dharmendra; Verma, Rajeev; Patidar, Ishwar; Ramsing, Sitaram; Bautze, David; Andres, Christian; Zundel, Christine; Forster, Dionys; Bhullar, Gurbir S.. |
| Background: bioRe Association is working with (about 5000) organic farmers, to solve their major practical farming problems. PTD-approach offers a great opportunity to work with the organic farmers to find solutions to their problems like in nutrient and pest management. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Systems research and participatory research Composting and manuring Technology transfer Crop health; Quality; Protection. |
| Ano: 2014 |
URL: http://orgprints.org/27523/1/Mandloi_etal_2014%20Participatory%20Technology%20Development%20%28PTD%29%20Trials%20in%20India.pdf |
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| Andres, Christian; Hoerler, Raphael; Home, Robert; Jeorin, Jonas; Dzahini-Obiatey, Henry K.; Ameyaw, George A.; Domfeh, Owusu; Blaser, Wilma J.; Gattinger, Andreas; Offei, Samuel K.; Six, Johan. |
| The cocoa swollen shoot virus disease is a major factor limiting cocoa (Theobroma cacao L.) productivity for West African farmers. The only treatment against this disease is to cut infected trees and replant with disease-free planting material. Research has recommended the prevention measures: (i) cordon sanitaire (leaving 10-m-wide cocoa-free zone around cocoa), (ii) barrier cropping, (iii) using partly tolerant hybrids, and (iv) removing specific alternative host tree species. Here, we evaluate the current adoption of these measures and identify their adoption constraints. We conducted a quantitative survey with 396 farmers in the Eastern and Western Regions of Ghana, held six focus group discussions and hosted a multi-stakeholder validation workshop... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection Africa. |
| Ano: 2018 |
URL: http://orgprints.org/33936/1/Andres_etal_2018_AgronomySustainableDevelopment_38_35_p1-11.pdf |
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| Schneider, Monika; Andres, Christian; Trujillo, German; Alcon, Freddy; Amurrio, Patricia; Seidel, Renate; Weibel, Franco; Milz, Joachim. |
| Cocoa is a crucial export commodity for many developing countries and provides income for millions of smallholders. However, cocoa cultivation has resulted in habitat destruction, biodiversity loss and soil degradation. While much of the world’s cocoa is produced in arguably unsustainable full-sun monoculture systems, shaded agroforestry systems may be an alternative for sustainable cocoa production. However, data-based information on advantages and limitations of different cocoa production systems are limited and pairwise comparisons on the long-term performance of cocoa monocultures and agroforestry systems under conventional and organic management are literally inexistent. The Research Institute of Organic Agriculture (FiBL) is pioneering to fill this... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions; Systems research and participatory research. |
| Ano: 2014 |
URL: http://orgprints.org/27519/1/Schneider_etal_2014_Bolivia_LTE.pdf |
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| Armengot, Laura; Barbieri, Pietro; Andres, Christian; Milz, Joachim; Alcon, Freddy; Trujillo, German; Schneider, Monika. |
| Cocoa cropping systems vary from full-sun monocrops to highly diversified agroforestry systems, which combine the cocoa production with by-crop such as bananas or plantains and trees with different functions. Additionally, these systems can be organically or conventionally managed. Although labour demand is one of the main activities contributing to the total production costs of the plantations and it may highly differ between production systems, there are still scarce data and information available. In this study we present the labour demands of five different production systems in a newly established cocoa plantation in Alto Beni, Bolivia. The trial was established in 2008 within the framework of the SysCom programme (www.systems-comparison.fibl.org)... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Systems research and participatory research; Crop husbandry. |
| Ano: 2015 |
URL: http://orgprints.org/29761/1/Armengot-etal-2015-Tropentag2015-abstract-313.pdf |
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| Ferrari, Leone; Florez, Andrez; Velásquez, Fortunato; Schneider, Monika; Andres, Christian; Milz, Joachim; Trujillo, German; Alcon, Freddy; Fromm, Ingrid. |
| The cocoa mirid (Monalonion dissimulatum) is one of the major pests in cocoa cultivation in Alto Beni, Bolivia, causing up to 50% yield losses. The most common control method is the manual removal of the nymphs sucking at the pods in the morning. This practice is very time-consuming, and farmers often do not dispose of enough time to perform these control measures. Therefore, there is an urgent need for more efficient practices to control this important pest. The present study evaluated the pathogenicity of two strains of Beauveria bassiana for the control of Monalonion dissimulatum on cocoa: a non-native, commercialized strain (Probiobass MR, Probiotec S.R.L.), and a native strain of Alto Beni, which is not yet commercialized (isolated by the local... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Systems research and participatory research Crop health; Quality; Protection. |
| Ano: 2014 |
URL: http://orgprints.org/27526/1/Beitrag_Ferrari_etal_HAFL_symposium_2014.pdf |
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| Niether, Wiebke; Armengot, Laura; Andres, Christian; Schneider, Monika; Gerold, Gerhrad. |
| Shade trees in agroforestry systems protect the understory cocoa from climate extremes. Shade tree pruning manages microclimatic conditions in favor of cocoa production while tree diversity is maintained. Adaptation of pruning has to consider seasonal changes in temperature and precipitation to protect the understory cocoa. Context Structural characteristics of tree stands such as species diversity, tree density, and stratification can affect throughfall and microclimate. Pruning changes the canopy and may therefore modulate internal conditions. Aims The aim of this study is to assess the environmental growing conditions of cocoa trees. Methods We monitored canopy openness and the impact of stand structure on throughfall and microclimate in three... |
| Tipo: Journal paper |
Palavras-chave: Crop husbandry. |
| Ano: 2018 |
URL: http://orgprints.org/34493/1/niether-etal-2018-AnnalsForrestScience-Vol75-38.pdf |
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| Andres, Christian; Gattinger, Andreas; Kwame Dzahini-Obiatey, Henry; Kwame Offei, Samuel; Six, Johan. |
| West Africa is the world’s most important cocoa (Theobroma cacao L.) growing region. The Cocoa Swollen Shoot Virus Disease (CSSVD) is one of the major productivity limitations, particularly in Ghana. Some 800’000 farm families’ livelihoods depend on revenues from the crop in Ghana alone. The only measure to treat CSSVD is to cut out infected trees. The national eradication program, implemented by the Ghanaian government since 1946, has cut out more than 250 million trees until today. Despite these efforts, CSSVD is still prevalent in the field. Research has tried to contribute to CSSVD control through breeding for resistant varieties, as well as investigating the effects of barriers with immune crops and protection through a “vaccination” with the mild... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Africa. |
| Ano: 2015 |
URL: http://orgprints.org/30504/1/Andres_etal_2015_Abstract_SGAS_SAGUF_Conf_final.pdf |
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| Wurtz, Marion; Armengot, Laura; Andres, Christian; Milz, Joachim; Alcon, Freddy; Schneider, Monika. |
| To estimate the cocoa dry bean weight from the fresh weight a standard dry bean factor (DBF) ranging from 32% to 40% is usually applied. This factor, i.e. the relation between the dry bean weight (fermented and dried) and the fresh weight at pod opening, is used by cooperatives and factories that buy the fresh beans of the farmers. However, this factor is subjected to seasonal fluctuations and can be highly influenced by rainfall. Therefore, for instance, higher values are expected during the dry season compared with the rainy season. The objective of this study was to evaluate the accuracy of the use of a standard fix DBF value compared with the use of actual DBF values periodically collected over the season for assessing the performance of 12 cocoa... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Systems research and participatory research; Crop husbandry. |
| Ano: 2015 |
URL: http://orgprints.org/29760/1/Schneider-etal-2015-LIFKkoTS-tropentag.pdf |
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| Forster, Dionys; Andres, Christian; Verma, Rajeev; Zundel, Christine; Messmer, Monika M.; Mäder, Paul. |
| The debate on the relative benefits of conventional and organic farming systems has in recent time gained significant interest. So far, global agricultural development has focused on increased productivity rather than on a holistic natural resource management for food security. Thus, developing more sustainable farming practices on a large scale is of utmost importance. However, information concerning the performance of farming systems under organic and conventional management in tropical and subtropical regions is scarce. This study presents agronomic and economic data from the conversion phase (2007–2010) of a farming systems comparison trial on a Vertisol soil in Madhya Pradesh, central India. A cotton-soybean-wheat crop rotation under biodynamic,... |
| Tipo: Journal paper |
Palavras-chave: Crop husbandry; India. |
| Ano: 2013 |
URL: http://orgprints.org/25011/1/forster-etal-2013-PLOS_ONE-8_12-p1-15.pdf |
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| Andres, Christian. |
| The Technology Innovation Platform of IFOAM (TIPI) has developed a vision and strategy for organic farming research to advance organic agriculture through research, development, innovation and technology transfer. TIPI's vision and strategy was finalized in February 2016. TIPI’s vision recognizes that current technologies based on heavy use of external inputs that are toxic, pollute the environment and are very energy-intensive come at a price. Investments in ecosystem services and the development of technologies that are productive, stable, adaptable, resilient, and fairly shared are much more likely to sustain the world’s population in a rapidly changing environment. Sustainable pathways to innovation will require engagement of all stakeholders in a... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: "Organics" in general; Research methodology and philosophy. |
| Ano: 2016 |
URL: http://orgprints.org/30505/1/Write-up_Simhasth_Andres.pdf |
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| Sisodia, Bhupendra, S.; Verma, Rajeev; Patidar, Ishwar; Ramsing, S.; Bhat, Nissar, A.; Iqbal, S.; Bautze, David; Andres, Christian; Zundel, Christine; Forster, Dionys; Bhullar, Gurbir S.. |
| Background: Developing sustainable farming system on large scale is very important for sustainable development of global agriculture. Scientific information about organic vs. conventional agriculture in the tropics is sparse. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Systems research and participatory research; Crop husbandry. |
| Ano: 2014 |
URL: http://orgprints.org/27522/1/Sisodia_etal_2014_Long-term%20Farming%20System%20Comparison%20Trial%20in%20India.pdf |
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| Registros recuperados: 36 | |
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