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Theory and reality of organic soil fertility - organic matter 21
Gosling, Paul; Shepherd, Mark.
This report was presented at the UK Organic Research 2002 Conference. Results are reported suggesting no significant difference between the level of soil organic matter on established organic farms in Southern England and paired conventionally managed farms. We discuss the possible reasons for this and also examine why the literature on this subject is frequently contradictory.
Tipo: Conference paper, poster, etc. Palavras-chave: Research methodology and philosophy; Soil; Farming Systems; Soil quality.
Ano: 2002 URL: http://orgprints.org/8267/1/gosling_shepherd_Theory_soil__fertility.pdf
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Arbuscular mycorrhizal fungi in organic systems 21
Hodge, A; Gosling, Paul; Goodlass, G; Bending, Gary.
Arbuscular mycorrhizal fungi (AMF) are potential contributors to plant nutrition and pathogen suppression in low input agricultural systems, although individual species of AMF vary widely in their functional attributes. Recent studies at HRI and elsewhere have suggested that in some agricultural systems inoculum of AMF is substantially lower under conventional management relative to that under organic management. Further studies have suggested that conventional management selects AMF communities with limited benefits to their plant hosts relative to those in organic systems. There is a need to investigate the generality of these findings, and their implications for the productivity of organic systems, particularly during the period following conversion to...
Tipo: Report Palavras-chave: Soil biology; Biodiversity and ecosystem services; Crop husbandry.
Ano: 2004 URL: http://orgprints.org/6772/1/OF0333_2173_FRP.pdf
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Assessing soil structure in organically farmed soils 21
Shepherd, Mark; Hatley, Damian; Gosling, Paul.
This report was presented at the UK Organic Research 2002 Conference. Soil structure was assessed in over 90 fields (organic and conventionally farmed) covering mixed, stockless and pasture farming systems. A combination of spade and an objective scoring system based on the degree of aggregation and porosity was able to detect differences between fields. On average, in the fields sampled, topsoil structure was slightly better on the organic farms though, even on the conventional fields, structure was unlikely to limit crop growth.
Tipo: Conference paper, poster, etc. Palavras-chave: Soil; Soil quality.
Ano: 2002 URL: http://orgprints.org/8384/1/shepherd_soil_structure_farmed.pdf
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