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| Larsen, T.; Magid, J.; Krogh, P.H.; Gorissen, A.. |
| Experimental data is still lacking for determining the significance of plant uptake of dissolved organic nitrogen (DON) in agricultural soils amended with organic fertilizers. Pulse-injection studies with dual-labelled amino acids have confirmed that non-mycorrhizal crops possess the capacity to take up DON but failed to quantify the uptake relative to total N uptake. In this study, dual-labelled green manure was added to soils with wheat plants. An advantage of using dual-labelled green manure as opposed to pulse injection of dual-labelled amino acids is that the amino acids in the fertilizer are released gradually, thus more naturally, and are therefore less susceptible to immediate microbial immobilization. The plants were harvested on days 27, 56, and... |
| Tipo: Journal paper |
Palavras-chave: Soil biology. |
| Ano: 2005 |
URL: http://orgprints.org/5859/1/5859.doc |
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| Loes, A-K.; Bünemann, E.; Cooper, J.; Hörtenhuber, S.; Magid, J.; Oberson, A.; Möller, K.. |
| Organic farming systems need to replace nutrients exported via farm products, especially phosphorus (P) which may otherwise become depleted in soil in the long term. In Europe, EU regulations for organic production are shaping the farming systems with respect to inputs of nutrients. Permitted off-farm P sources include conventional animal manure, composted or anaerobically digested organic residues, rock phosphate, and some animal residues such as meat and bone meal. The recent proposed revision of EU regulations for organic production (2014) puts less emphasis on closing nutrient cycles and instead aims at minimizing off-farm inputs, to reduce the risk of importing contaminants. This development, which has received little attention from the organic sector... |
| Tipo: Journal paper |
Palavras-chave: Soil quality; Composting and manuring; Regulation. |
| Ano: 2016 |
URL: http://orgprints.org/32308/1/loes-etal2016-OrgAgri-online-p1-24.pdf |
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| Rasmussen, L.D.; Møller, J.; Magid, J.. |
| Organic farmers are concerned about the use of genetically modified plants (GM plants) in conventional agriculture. The concern is mainly focused on the risk of spreading of pollen or seeds from GM plans to adjacent fields. There has been less focus on the environmental impact of exposing the soil to genetically modified DNA (i.e. transgenic DNA) from GM plants residues left in the field. Yet, the new EU directive on the deliberate release into the environment of genetically modified organisms (EU, 2001) requires a "description of post-release treatment methods for the genetically modified plant material including wastes". |
| Tipo: Journal paper |
Palavras-chave: Biodiversity and ecosystem services. |
| Ano: 2004 |
URL: http://orgprints.org/5858/1/5858.pdf |
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| Møller, J.; Bruun, S.; Magid, J.. |
| Short-Circuit is an on-going EU-LIFE ENVIRONMENT funded project (KVL is project leader) with the aim of 'short-circuiting' the carbon and nutrient cycle between urban and rural districts by establishing three new systems for source separation, collection and composting of organic waste in the greater Copenhagen area. The project is a collaboration between research institutions (KVL and Küngl. Tekniska Högskolan in Stockholm), and industry represented by the composting firm Solum Ltd. and the Internet-based box scheme business Aarstiderne Ltd. KVL´s part of the activity is co-funded by the Danish Research Centre for Organic Farming, via the CRUCIAL project. These two projects form part of a coherent effort to re-invent urban waste management with... |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover. |
| Ano: 2005 |
URL: http://orgprints.org/5857/1/5857.PDF |
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| Tamm, L.; Pertot, I.; Schmitt, A.; Verrastro, V.; Magid, J.; Bünemann, E. K.; Möller, K.; Athanasiadou, S.; Experton, C.; Leiber, F.; Steinshamm, H.; Moeskops, B.; Herforth-Rahmé, J.; Maurer, V.. |
| Organic farmers adhere to high standards in producing quality food while protecting the environment. However, organic farming needs to improve continuously to keep meeting its ambitious objectives. The project ‘Replacement of Contentious Inputs in Organic Farming Systems’ (RELACS) will foster the development and adoption of cost-efficient and environmentally safe tools and technologies to further reduce the use of external inputs on organic farms across Europe as well as in Non EU Mediterranean countries. Project partners will provide scientific support to develop fair and implementable EU rules to improve current practices in organic farming. Farm advisory networks in 11 European countries will reach out to farmers to ensure effective dissemination and... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Health and welfare Crop health; Quality; Protection. |
| Ano: 2018 |
URL: http://orgprints.org/34690/1/tamm-etal-2018-ICOAS2018_BoA._p47pdf.pdf |
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| Poulsen, P.H.B; Møller, J.; Magid, J.. |
| Using denaturing gradient gel electrophoresis (DGGE) and simultaneously measure the enzymatic activity of chitinase, we could link genetic and functional diversity of the indigenous microbial communities in compost samples. Two types of compost, a garden/park waste compost (D-Gro A) and a source separated organic household waste compost (Biovækst), showed different genetic diversity as measured by PCR-DGGE of total DNA extracted from the composts. The composts also had different chitinase activity, 0.46 and 3.97 µmole 4MU/hour x g dry matter for the D-Gro A and Biovækst composts, respectively. To increase chitinase activity the two composts were amended with chitin. This addition induced a change in both the bacterial and fungal genetic diversity when... |
| Tipo: Working paper |
Palavras-chave: Soil biology. |
| Ano: 2005 |
URL: http://orgprints.org/5856/1/5856.doc |
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