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Evaluation of invasive Acacia species compost as alternative horticultural organic substrates


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Brito, L Miguel; Reis, Mário; Mourão, Isabel and Coutinho, João (2014) Evaluation of invasive Acacia species compost as alternative horticultural organic substrates. In: Rahmann, G. and Aksoy, U. (Eds.) Building Organic Bridges, Johann Heinrich von Thünen-Institut, Braunschweig, Germany, 3, Thuenen Report, no. 20, pp. 929-932.

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The physical and chemical characteristics of composts of invasive Acacia longifolia and Acacia melanoxylon shrubs were evaluated to identify compost limitations as a substrate component. The bulk density was <0.4 g cm-3 and the total pore space was >85% of the total volume. Air capacity, the easily available water and buffering capacity were also within acceptable recommended values for horticultural substrates. With increased composting time the physical characteristics of the composts improved, but the same was not true for chemical characteristics. It is recommended to use these acacia composts in mixtures with peat which increases the content of organic matter and the C/N ratio, and decreases the pH and the electrical conductivity, of the final substrates.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Agrovoc keywords:
EnglishPotting compostshttp://aims.fao.org/aos/agrovoc/c_6144
EnglishWater availabilityhttp://aims.fao.org/aos/agrovoc/c_8310
Englishorganic matterhttp://aims.fao.org/aos/agrovoc/c_5387
Subjects: Crop husbandry > Composting and manuring
Soil > Nutrient turnover
Environmental aspects > Biodiversity and ecosystem services
Research affiliation: International Conferences > 2014: 18th IFOAM OWC Scientific Track: 4th ISOFAR Scientific Conference
Deposited By: Brito, Professor Luis Miguel
ID Code:23032
Deposited On:15 Oct 2014 13:22
Last Modified:15 Oct 2014 13:22
Document Language:English
Refereed:Peer-reviewed and accepted
Additional Publishing Information:urn:nbn:de:gbv:253-201407-dn053621-1

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