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| Registros recuperados: 10 | |
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| Jovchelevich, Pedro. |
| The purpose of this work was to evaluate the influence of moon rhythms on yield of carrot roots under biodynamic management sowed in different dates. The experiment was carried out over a two period on a biodynamic farm, in Botucatu, São Paulo State, Brazil. Rhythms were tested observing the effects of seeding at different planting dates. The experiment was performed with four randomized blocks and 31 treatments (different dates) in 2005, and fourteen treatments in 2006. The harvest was made 82 days after sowing. Effects associated with planting at a specific lunar position were measured by the deviations from the trend curve. The following characteristics had been evaluated: fresh mass of roots and leaves and dry mass of roots. Dry mass was the only one... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Recycling; Balancing and resource management Farm nutrient management. |
| Ano: 2014 |
URL: http://orgprints.org/23624/1/23624_MM.pdf |
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| Müller-Stöver, Dorette; Hauggaard-Nielsen, Henrik; Eriksen, Jørgen; Ambus, Per; Johansen, Anders. |
| A laboratory incubation study with clover grass pasture soils of seven different ages (0, 1, 2, 3, 4, 5, and 16 production years) was carried out to determine initial soil carbon (C) and nitrogen (N) stocks and potentials for greenhouse gas emissions (N2O and CO2). Compared with the soil from the recently established pasture, an increase of total soil C and N was observed along with pasture age. Greenhouse gas emissions were low and not significantly different among the soils from younger pastures (0–5 years), but especially N2O emissions increased markedly in the soil from 16-year-old grass–clover. Low emissions might mainly be due to an early C limitation occurring in the soils from younger pastures, which was also corroborated by decreasing levels of... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general Composting and manuring Recycling; Balancing and resource management Farm nutrient management. |
| Ano: 2012 |
URL: http://orgprints.org/20915/7/20915.pdf |
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| Müller-Stöver, Dorette; Hauggaard-Nielsen, Henrik; Eriksen, Jørgen; Ambus, Per; Johansen, Anders. |
| A laboratory incubation study with clover grass pasture soils of six different ages (0, 1, 2, 3, 4, 5, and 16 production years) was carried out to determine initial soil carbon (C) and nitrogen (N) stocks and their effects on initial greenhouse gas (GHG) emissions (N2O and CO2) after soil incorporation of the grass-clover pastures. Compared to the soil from the recently established pasture, a significant increase of total soil C and N was observed after 2 years, which was generally increasing with pasture age. GHG emissions were not significantly different among the soils from younger pastures (0 to 5 years), but especially N2O emissions increased markedly in the soil from 16-year old grass-clover. This might mainly be due to an early carbon limitation... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general Composting and manuring Recycling; Balancing and resource management Farm nutrient management. |
| Ano: 2011 |
URL: http://orgprints.org/18978/4/18978.pdf |
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| Johansson, S.; Belfrage, K.. |
| Small-scale organic agriculture, with integrated crop and animal production has the potential of producing significant amounts of food. Self-sufficiency of fuel for farm work has been investigated closer in this study, based on a set of prerequisites that were identified as important for future sustainability. An implication of the study is that low-tech solutions are more likely to be renewable in the production. Fuel production for farm work at the farm also facilitates nutrient recycling. Draught horse power turned out to be comparable with other biofuels, and in a system perspective even more efficient in some cases. For ensuring a sustained food production social solutions for cleaning and recycling human excreta must be developed. Low-input... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Recycling; Balancing and resource management Farm nutrient management. |
| Ano: 2013 |
URL: http://orgprints.org/24557/1/24557.pdf |
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| Råberg, T.; Kreuger, E.; Björnsson, L.; Jensen, E.S.. |
| This project investigates strategic management of nitrogen by integrating crop residue management with biogas production. The approach offers potential for diversified farmer income, as food crops, feedstock for biogas and digestate for nutrient cycling are produced simultaneously. This type of diversification provides multifunctional solutions in organic farming, especially in production without access to animal manure. Biogas production from crop residues offers the possibility of reducing both emissions and leaching of nutrients to the surrounding ecosystems, as compared to the case where crop residue is incorporated into the soil for decomposition (Baggs et al. 2000; Velthof et al. 2002). This type of multifunctional cropping system provides solutions... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Recycling; Balancing and resource management Farm nutrient management. |
| Ano: 2013 |
URL: http://orgprints.org/24556/1/24556.pdf |
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| Registros recuperados: 10 | |
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