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Enhancement of degradation of fallen apple leaves

Jong, Ir. P.F. de and Heijne, Dr. Ir. B. (2006) Enhancement of degradation of fallen apple leaves. Poster at: Joint Organic Congress, Odense, Denmark, May 30-31, 2006.

[thumbnail of leafdegradation2.pdf] PDF - English


Leaves from organic apple trees were dipped with different organic materials and leaves were placed on the orchard floor in autumn. Leaf area and the amount of ascospores of Venturia inaequalis were measured in spring. The objective of this research was to find alternatives for urea that simulate the decomposition of apple leaves and reduces the asco-spore production. In both years urea gave an increase of the leaf degradation and a significant reduction of the number of ascospores. The antagonist Coniothyrium minitans had no significant effect on the ascospore production in both years but decreased the leaf degradation. Beet pulp showed a significant reduction of the number of spores but reduced the leaf degradation rate. Applying extra earthworms increased the degradation.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Subjects: Crop husbandry > Crop health, quality, protection
Research affiliation: International Conferences > 2006: Joint Organic Congress > Theme 5: Protecting plant health
Deposited By: Jong, de, Ir P.F.
ID Code:7691
Deposited On:09 May 2006
Last Modified:12 Apr 2010 07:32
Document Language:English
Refereed:Not peer-reviewed

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