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Nitrogen management in organic horticultural rotation


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Machado Pinto, Rui Manuel (2014) Nitrogen management in organic horticultural rotation. In: Rahmann, G. and Aksoy, U. (Eds.) Building Organic Bridges, Johann Heinrich von Thünen-Institut, Braunschweig, Germany, 3, Thuenen Report, no. 20, pp. 933-936.

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A field crop rotation with a cover crop of hairy vetch (Vicia sativa, L.) and rye (Secale cereale, L.)followed by potato (Solanum tuberosum L.) and lettuce (Lactuca sativa, L.)was set up with the aim of improving nitrogen (N) management for organic agriculture. N mineralization was determined by a field incubation in response to green manure and increasing rates of compost (20 and 40 t/ha) and organic commercial ferlizer (1 and 2 t/ha). N mineralization in compost took place during all crop rotation, but most of the organic fertlizer was mineralized during the first days after soil application. Consequently, N availability and potato crop yield was increased with 2 t/ha of organic fertilizer compared to 20 t/ha of compost, whereas lettuce yield increased with compost application in comparison to organic fertilizer.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Organic agriculture, compost, field incubation, green manure, nitrogen
Agrovoc keywords:
Subjects: Soil > Nutrient turnover
Farming Systems > Farm nutrient management
Research affiliation: International Conferences > 2014: 18th IFOAM OWC Scientific Track: 4th ISOFAR Scientific Conference
Deposited By: Pinto, Student Rui Manuel
ID Code:23586
Deposited On:22 Oct 2014 07:26
Last Modified:22 Oct 2014 07:26
Document Language:English
Refereed:Peer-reviewed and accepted
Additional Publishing Information:urn:nbn:de:gbv:253-201407-dn053621-1

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