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COMPORTEMENT DES PLANTS D’ACACIA INSTALLES SUR DES SUBSTRATS A BASE DE COMPOST SYLVICOLE AVEC OU SANS METHACOMPOST AVICOLE DANS UNE PEPINIERE MODERNE EN TUNISIE

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Author(s): Y. M’Sadak | A. Ben M’Barek | L. Tayachi

Journal: Journal of Fundamental and Applied Sciences
ISSN 1112-9867

Volume: 5;
Issue: 1;
Start page: 38;
Date: 2013;
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Keywords: Forestry compost | poultry methacompost | Acacia seedlings | sprouting behavior | growth parameters.

ABSTRACT
The present study aims principally the evaluation of germination and of plant growth of Acacia cyanophylla installed, on the one hand, on the gross forestry compost (CSB) in its purest form, produced in a forest nursery in Tunisia, on the other hand, on the CSB mixed with poultry methacompost (MCA) refined (solid residue from the industrial digester) in its two states, namely the output of the decanter (MCAA) and the outlet of the digester (MCAA') according to the same ratio, of 20 %. Both tested mixtures were the best, due to the direct assessment of physico-chemical properties of various mixtures made. The incorporation of the MCA with the CSB has a notable positive effect on germination, and consequently on the growth of Acacia seedlings in terms of height and diameter. The CSB presented an intermediary vegetative behavior.
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