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| Registros recuperados: 4.506 | |
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| Perner, Henrike; Schwarz, Dietmar; George, Eckhard. |
| Organic horticultural production systems often are characterized by the use of beneficial soil microorganisms because the application of soluble inorganic P or N fertilizers is not endorsed. Due to the limited supply of soluble nutrients in organic production systems, nutrient deficiency may limit plant growth and yield. The sole use of peat for pot-based cultures is also discouraged in organic production systems. Therefore, we have studied viable alternatives for highly soluble fertilizers and pure peat substrates using leek [Allium ampeloprasum L. var. Porrum] as a test plant. Plants were grown on peat-based substrates with different rates of compost additions, and with and without inoculation with arbuscular mycorrhizal (AM) fungi. Inoculation with a... |
| Tipo: Journal paper |
Palavras-chave: Composting and manuring. |
| Ano: 2006 |
URL: http://orgprints.org/15387/1/Perner%2Detal%2D2006%2DHortScience.41_p628%2D632.pdf |
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| Naadland, Sondre Stokke; Steinshamn, Håvard; Randby, Åshild T.. |
| Under Norwegian conditions, diets based on primary growth (PG) silage typically increase milk yield compared to silage prepared from the regrowth (RG). Organic PG, dominated by immature grasses, is often high in energy and low in crude protein (CP), whereas the opposite is the case for organic RG harvests, dominated by clover. Here, we tested the hypotheses that increasing proportions of RG will reduce the total supply of metabolizable energy, but increase the CP intake, and that there is a dietary optimal mix of PG and RG to meet requirements for optimal milk production. Sixteen Norwegian Red cows were used in an experiment designed with four balanced 4 × 4 Latin squares with 21-day periods to evaluate the effect of incremental replacement of PG with RG... |
| Tipo: Journal paper |
Palavras-chave: Dairy cattle; Feeding and growth. |
| Ano: 2017 |
URL: http://orgprints.org/30594/1/Naadland%20et%20al%202016%20Replacing%20organic%20grass%20clover%20silage%20from%20PG%20with%20RG.pdf |
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| Gadermaier, Florian; Berner, Alfred; Fließbach, Andreas; Friedel, Jürgen Kurt; Mäder, Paul. |
| No-tillage (NT) and reduced tillage (RT) systems are well-known management tools for reducing soil erosion and improving soil fertility. NT and RT may improve the environmental and economic performance of organic farming, but they are still not common practice among organic farmers. This paper presents the effects of tillage [RT versus conventional tillage (CT)], fertilization (slurry versus manure compost) and biodynamic preparations (with versus without) on soil fertility indicators such as soil organic carbon (Corg), microbial biomass and microbial activity, soil nutrients and nutrient budgets in an organic farming system during the first six-year crop rotation period of a long-term experiment on a clayey soil in a temperate climate. RT caused... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Soil quality. |
| Ano: 2011 |
URL: http://orgprints.org/18921/1/Gadermaier-etal-2011-RAFS_27_1_p68-80.pdf |
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| Oelofse, Myles; Jensen, Lars Stoumann; Magid, Jakob. |
| Soil fertility management in organic sys- tems, regulated by the organic standards, should seek to build healthy, fertile soils and reduce reliance on external inputs. The use of nutrients from conventional sources, such as animal manures from conventional farms, is currently permitted, with restrictions, in the organic regulations. However, the reliance of organic agriculture on the conventional system is considered problematic. In light of this, the organic sector in Denmark has recently decided to gradually phase out, and ultimately ban, the use of conventional ma- nures and straws in organic agriculture in Denmark. Core focal areas for phasing out conventional nutrients are as follows: (1) amendments to crop selection and rotations, (2) alternative... |
| Tipo: Journal paper |
Palavras-chave: Soil quality Recycling; Balancing and resource management Nutrient turnover Farm nutrient management History of organics. |
| Ano: 2013 |
URL: http://orgprints.org/27911/1/Myles%20Phasing%20out%20implications%20personal%20copy%202013.pdf |
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| Lindqvist, H.; Nadeau, E.; Jensen, S.K.. |
| Effects of wilting, ensiling and type of additive on atocopherol and b-carotene contents in legume–grass mixtures were examined. Swards of birdsfoot trefoil + timothy (Bft + Ti), red clover + timothy (Rc + Ti) and red clover + meadow fescue (Rc + Mf) were harvested as a first regrowth in August 2005. Forage was wilted to a dry-matter (DM) content of 273 g kg)1 and ensiled without additive or with an inoculant or acid. Wilting decreased a-tocopherol concentration by 30% in the Bft + Ti mixture (P = 0x015). Untreated Bft + Ti silage had higher a-tocopherol content than red clover silages (56x9 vs. 34x2 mg kg)1 DM; P = 0x015). The a-tocopherol concentration of Bft + Ti silages increased during ensiling from 41x1 mg kg)1 DM in wilted herbage to 56x9, 65x2 and... |
| Tipo: Journal paper |
Palavras-chave: Pasture and forage crops. |
| Ano: 2011 |
URL: http://orgprints.org/19452/1/gfs_8271.pdf |
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| Kurze, E.; Lo Scalzo, R; Campanelli, G.; Schwab, Wilfried. |
| Tomatoes (Solanum lycopersicum) are one of the most consumed vegetables worldwide. However, tomato allergies in patients suffering from birch pollen allergy occur frequently. Due to highly similar protein structures of the tomato allergen Sola l 4 and the major birch pollen allergen Bet v 1, patients cross-react with allergenic proteins from tomato as well as other fruits or vegetables. The aim of this study was to quantify Sola l 4 in various tomatoes differing in color, size and shape for identification of varieties with a reduced allergen level. Therefore, an indirect competitive ELISA using a specific polyclonal Sola l 4 antibody was developed. In addition, two varieties, both cultivated either conventionally or organically and furthermore... |
| Tipo: Journal paper |
Palavras-chave: Food security; Food quality and human health Processing; Packaging and transportation. |
| Ano: 2018 |
URL: http://orgprints.org/33741/1/paper_pomodoro_allergeni_PlosOne.pdf |
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| Autio, Elena; Sihto, Ulla; Mononen, Jaakko; Heiskanen, Minna-Liisa. |
| The demand for information relating to the nutrition of horses in a cold environment is increasing with the popularity of loose housing of horses. This study examined the energy intake and growth of 10 weanling horses from November to March (22 weeks) in a loose housing system (paddock and insulated sleeping hall with deep-litter bed). The horses were measured weekly for body condition and body weight, and the feeding was adjusted according to a horse’s body condition. Metabolizable energy (ME) intake was compared to Finnish (MTT 2006) and Swedish (SLU 2004) nutrient requirements for 6–12-month-old horses. ME intake (75.5 ± 11.8 MJ d-1, mean ± SD) was on average 24.6% above the requirements. The intake varied in a non-linear fashion in the course of the... |
| Tipo: Journal paper |
Palavras-chave: Feeding and growth. |
| Ano: 2008 |
URL: http://orgprints.org/16975/1/autio.pdf |
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| Niggli, Urs. |
| Agroecology - as a scientific discipline and as an approach to sustainable farming practice - has objectives similar to those of organic agriculture. The paper sharpens the profile of both concepts and identifies strengths and weaknesses. The overarching challenge of both is to minimize trade-offs between food and fiber production on the one hand and non-commodity ecosystem services on the other hand. A comparison of the two approaches may well be inspiring, especially for the future development of organic food systems. Best use of human, social and natural capital characterizes organic farmers, especially in developing countries, as documented by many case studies from sub Saharan Africa. That also applies to organic farms in temperate zones, although... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Research methodology and philosophy. |
| Ano: 2015 |
URL: http://orgprints.org/29200/1/niggli-2015-SustainableAgriResearch-Vol4-No3-p149-157.pdf |
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| Moudry, Jan (Jr.); Konvalina, Petr. |
| The contemporary state of farming has been evaluated and organic and conventional farming systems have been compared in the framework of the analysis of structure of farming in the Czech republic. The selective group of 437 associations, consisted of 3 subgroups, is divided into several categories according to the farming method and altitude. Parametres of plant and animal production and use of the agroenvironmental programmes and measures are evaluated. The evaluation of the structure of farming permits to find optimal possibilities of future development of conventional and organic farming in the Czech republic and of arrangements of the settings of grants and subsidies. |
| Tipo: Journal paper |
Palavras-chave: Farming Systems. |
| Ano: 2007 |
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| Vogl, C. R.; Vogl-Lukasser, B.. |
| In Eastern Tyrol (Austria), homegardens are an integral part of the farming system. The aim of this paper is to present evidence for the development of gardening in the study area and to identify differences/similarities between gardens at organic and non-organic farms. In 1997 and 1998, in homegardens on 91 organic and 105 non-organic farms from 12 communities, occurrence and abundance of cultivated plant species were surveyed and interviews were carried out about garden history, management and plant use. For the factor organic/non-organic, differences between gardens were statistically tested. Garden management is similar in organic/non-organic gardens, except mixed cropping and the use of alternative remedies to combat diseases, both with significantly... |
| Tipo: Journal paper |
Palavras-chave: Crop husbandry. |
| Ano: 2003 |
URL: http://orgprints.org/6931/1/Vogl_BAH2003_21_349%2D366.pdf |
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| Fataar, Shakira; Kahmen, Ansgar; Luka, Henryk. |
| In conservation biological control, flowers can be used to increase the biological control potential of parasitoids, which benefit from the offered food sources. Besides exhibiting exploitable nectar, flowers should preferably be olfactorily attractive, as highly attractive flowers are easily located, reducing the time spent searching for food and subsequently increasing the per capita host searching efficiency. In this study we thus focused on the olfactory attractiveness of Fagopyrum esculentum Moench (Polygonaceae), Centaurea cyanus L. (Asteraceae) and Vicia sativa L. (Fabaceae) to Cotesia rubecula (Marshall, 1885) (Hymenoptera: Braconidae), a larval parasitoid of the cabbage pest Pieris rapae (Linnaeus, 1758) (Lepidoptera: Pieridae). With a Y-tube... |
| Tipo: Journal paper |
Palavras-chave: Biodiversity and ecosystem services Crop health; Quality; Protection. |
| Ano: 2019 |
URL: http://orgprints.org/34499/1/Fataar_etal_2019-BiolControl-Vol132-p16-22.pdf |
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| Haas, Guido. |
| Klimaschutz wird die Themen Bodenschutz, Naturschutz, Wasserschutz und Tierschutz zukünftig als weitere zentrale Umweltwirkung ergänzen, um Landwirtschaft umweltfreundlich weiter zu entwickeln und zu vergleichen. Der Biobetrieb weist bei den beiden Treibhausgasen CO2 und N2O große Vorteile auf. Bei CH4 fehlt eine hinreichende Analyse, die Systemunterschiede dürften aber gering und eventuell auch nachteilig für den Biobetrieb sein. Für den Einzelbetrieb sollte die absehbare Wirkung des Klimawandels vor Ort frühzeitig bei allen zukünftigen Entscheidungen für die Betriebsentwicklung, Investitionen und Bewirtschaftung berücksichtigt werden. Ebenso sollte einzelbetrieblich für landwirtschaftliche Höfe, aber auch für Verarbeitungs- und Handelsbetriebe der... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Air and water emissions. |
| Ano: 2007 |
URL: http://orgprints.org/13933/1/LE_KlimaBeitrag07.pdf |
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| Penvern, Servane; Bellon, Stéphane; Fauriel, Joël; Sauphanor, Benoit. |
| Aphid populations, including a widespread pest, Myzus persicae, are known to be affected by cultural practices, plant growth and natural regulation, but their control in orchards most frequently relies on regular treatments aiming to avoid direct damage and virus transmission. This study aimed first at characterising farmers’ management strategies towards aphids and, secondly evaluating them in terms of efficiency and impact on aphid natural enemies from 19 organic and conventional fruit farms in south-eastern France. Comprehensive variables made it possible to differentiate four strategies: intensive, optimised, input-substitution and integrated. The more integrated the strategy, the more diverse and abundant the aphids. The two most effective strategies... |
| Tipo: Journal paper |
Palavras-chave: Fruit and berries Crop health; Quality; Protection. |
| Ano: 2010 |
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| Daniel, Claudia. |
| Essential oils can have an impact on pollen beetle (Meligethes spp.) host plant location behaviour. Lavender oil (Lavendula angustifolia) showed the highest repellency value in a previous laboratory study that compared five different essential oils (Mauchline et al., 2005). However, lavender oil is one of the most expensive essential oils – a fact that could seriously hamper on-farm implementation of this strategy. To find a cheaper essential oil with comparable efficacy to lavender oil, we compared the essential oils of Mentha arvensis, Eucalyptus globulus, Melaleuca alternifolia, Citrus sinensis, Citrus paradisi, Citrus limon, Juniperus mexicana, Abies sibirica, Illicium verum, Gaultheria procumbens, Cymbopogon flexuosus, Syzygium aromaticum, and Litsea... |
| Tipo: Journal paper |
Palavras-chave: Cereals; Pulses and oilseeds Crop husbandry Crop health; Quality; Protection. |
| Ano: 2014 |
URL: http://orgprints.org/27061/1/79-83%20Daniel.pdf |
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| Siegrist, S.; Schaub, D.; Pfiffner, L.; Mäder, P.. |
| In a long-term field trial in northwestern Switzerland, the effects of organic and conventional land-use management on earthworm populations and on soil erodibility were investigated. A silt loam soil which had developed in deep deposits of alluvial loess characterised the study site. Three methods were applied to analyse soil erodibility, at three different periods between autumn 1992 and 1993: aggregate stability (measured in the laboratory by a high energy rainfall simulation and by percolation) and soil particle detachment (measured in the field by splash erosion). Earthworm biomass and density, as well as the population diversity, were significantly greater on the organic plots than on the conventional plots. Likewise, the aggregate stability of the... |
| Tipo: Journal paper |
Palavras-chave: Soil biology. |
| Ano: 1998 |
URL: http://orgprints.org/26776/1/Siegrist_et_al_1998_AEE.pdf |
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| Friedel, Jürgen K.; Scheller, Edwin. |
| We hydrolysed (6 M HC1) soll organic matter (SOM) from mineral top-soil horizons, litter, and the fraction rendered extractable by 0.5 M K2SO4 after Chloroform fumigation from eight soils under arable, grassland and forest use. covering a wide ränge of site conditions. Our aims were to quantify amino acid contents in the hydrolysate derived from whole soil. litter and soil microbial biomass, respectively. We also wanted to test if the pattern of hydrolysable amino acids of the whole soil is uniform irrespective of site conditions and land use. and if there i s a relation with the amino acid pattern of the respective soil microbial Community. The content of hydrolysable amino acids in the whole soil was higher in the soil samples from grassland and forest... |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover; Soil biology. |
| Ano: 2002 |
URL: http://orgprints.org/1372/1/kein%2DDokument.pdf |
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| Registros recuperados: 4.506 | |
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