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	Provedor de dados Organic Eprints (3) Autor Eltun, Ragnar (3) Korsaeth, Audun (3) Hansen, Sissel (2) Pommeresche, Reidun (2) Flaten, Ola (1) Hardaker, J B (1) Lien, Gudbrand (1) Richardson, James D (1) Schumann, Keith D (1) Mais... Palavra-chave Cereals (1) Crop combinations and interactions (1) Pasture and forage crops Cereals (1) Pulses and oilseeds Soil biology (1) Pulses and oilseeds Systems research and participatory research Farm economics (1) Soil biology (1) Mais... Tipo do documento Conference paper, poster, etc. (1) Journal paper (1) Web product (1) Ano 2006 (3) País Germany (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Long-term effects of cropping systems on the earthworm population in a loam soil Organic Eprints Pommeresche, Reidun; Hansen, Sissel; Eltun, Ragnar; Korsaeth, Audun. Six cropping systems, ranging from conventional arable without livestock to organic livestock farming dominated by ley, have been compared in 1990 and 2004 in SE Norway. Ley in the crop rotation increased density and biomass of earthworms and channels in both organic and conventional systems. A ley proportion higher than 25 % only increased the density of channels. Among the arable systems, the organic system had a higher density and biomass of earthworms as compared to the conventional systems. Among the fodder systems, the optimised system had the highest density of earthworms in 2004, but there were no differences between these systems in earthworm biomass or density of earthworm channels. Tipo: Web product Palavras-chave: Crop combinations and interactions; Soil biology. Ano: 2006 URL: http://orgprints.org/8766/1/long_term_effects_t_1_4_pommeresche_2006.pdf Comparison of risk in organic, integrated and conventional cropping systems in eastern Norway Organic Eprints Lien, Gudbrand; Flaten, Ola; Korsaeth, Audun; Schumann, Keith D; Richardson, James D; Eltun, Ragnar; Hardaker, J B. The aim of this study was to compare risk of organic, integrated and conventional cropping systems. Experimental cropping system data (1991-1999) from eastern Norway were combined with farm budget data. Empirical distributions of net farm income for different cropping systems were estimated with a simulation model. The results show that the organic system had the greatest net farm income variability, but both the existing payment system and organic price premiums make it the most economically viable alternative. Tipo: Journal paper Palavras-chave: Cereals; Pulses and oilseeds Systems research and participatory research Farm economics. Ano: 2006 URL: http://orgprints.org/7061/2/Farm_Management_2006_Lien_et_al.pdf Long-term effects of cropping systems on the earthworm populations in a loam soil Organic Eprints Pommeresche, Reidun; Hansen, Sissel; Eltun, Ragnar; Korsaeth, Audun. Abstract - Six cropping systems, ranging from conventional arable without livestock to organic livestock farming dominated by ley, have been compared since 1990 in SE Norway. Earthworm density (ED), earthworm biomass (EB), channel density (CD) and species of worms were measured in the topsoil (0-25 cm) in 1994 and 2004. Ley in the crop rotation increased EB, ED and CD in both organic and conventional systems, but a ley proportion higher than 25 % only increased CD. Among the arable systems, the organic system hosted more individuals (ED) and a higher biomass (EB) of earthworms as compared to the conventional systems. The conventional arable systems had low values in 2004, and only minor changes in EB and ED during the period compared with the other... Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops Cereals; Pulses and oilseeds Soil biology. Ano: 2006 URL: http://orgprints.org/7372/1/Pommeresche%2C_Hansen_et_al_JOrganicCong_06.doc Registros recuperados: 3 Primeira ... 1 ... Última

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