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Nitrogen fertilizer value of cattle manure applied on soils originating from organic and conventional farming systems

Langmeier, Monika; Frossard, Emmanuel; Kreuzer, Michael; Mäder, Paul; Dubois, David and Oberson, Astrid (2002) Nitrogen fertilizer value of cattle manure applied on soils originating from organic and conventional farming systems. Agronomie, 22, pp. 789-800.

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Summary

Nitrogen nutrition of plants in organic farming depends largely on animal manure. In a pot experiment the hypothesis was tested that on a long-term organically managed soil (ORG) characterized by higher soil microbial activity, a greater portion of N applied as cattle manure is mineralized and taken up by plants than on a conventionally managed soil that had received exclusively mineral fertilizers (MIN). Dry matter yields and N uptake by Italian ryegrass were higher by around 20% on ORG than MIN soil. The N utilization of 15N labeled animal manure components and mineralNdiffered little between ORG and MIN. The major part of the increasedNuptake on ORG compared with MIN was due to a significantly greater N supply from ORG soil. The increased capacity of the ORG soil to supply N to plants became more important at later cuts when N was severely limiting plant growth.


EPrint Type:Journal paper
Keywords:cattle manure, 15N, organic farming, conventional farming, N fertilizer value, Department of Soil Sciences, Long-term Experiments
Agrovoc keywords:
LanguageValueURI
Englishcattle manureUNSPECIFIED
English15NUNSPECIFIED
Englishorganic farmingUNSPECIFIED
Englishconventional farmingUNSPECIFIED
EnglishN fertilizer valueUNSPECIFIED
Subjects: Crop husbandry > Composting and manuring
Soil
Research affiliation: Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Soil Sciences
Switzerland > Agroscope > ART - Reckenholz location
Switzerland > ETHZ - Agrarwissenschaften
DOI:10.1051/agro:2002044
Deposited By: Mäder, Paul
ID Code:26768
Deposited On:26 Sep 2014 11:24
Last Modified:26 Sep 2014 11:24
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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