الفهرس 
المقدمةOnly 14 pages are availabe for public view
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Abstract
The objective of this study was to evaluate the potential effects of some aqueous non-aerated compost extracts prepared from different plant residues(onion,garlic,cabbage and their mixtures )on :1-Certain vegetative growth parameters of the casual agents.2-Controlling of early blight,black scurf and dry rot diseases on potato plants.3-Effect of the aqueous compost extracts on the chlorophyII content and activity of oholyphenol oxidase in potato plants.