الفهرس 
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Abstract
This work was carried out during two successive seasons of 2008/2009 and 2009/2010, at the Experimental Farm of Protected Cultivation, El-Bousaily site, Rosetta city, Al-Behaira Governorate, Egypt, belonging to Central Laboratory of Agricultural Climate (CLAC).
This investigation was designed to determine the effect of organic fertilizer, soil solarization and Bio-fertilization with vesicular arbuscular mycorrhizae (VAM) on plant growth, yield and quality of pepper fruit. The aim of the study was extended to controlling soil-borne and weed seed as well.
The experiment was designed using split-split plot design with four replicates. Main plots containing two treatments (with and without organic fertilizer), Sub-Plots containing two treatments (with and without Soil solarization), and Sub-Sub plots containing two treatments (with and without VA Mycorrhizas inoculation).
Solarization combined with chicken manure for 6 weeks (from mid- June to the end of July) for the two seasons of (2008 and 2009), increased maximum soil surface temperature 3.0 C° than solarized treatment alone as average of both seasons.
Solarization with and without organic manure reduced total fungi and total bacterial counts. The organic manure application to the non-solarized soil increased the density of total fungi and bacteria by about 42.6% and 5.2 % respectively over those detected in the soil without organic manure.
Solarization 100% reduced the emergence of weeds, by killing or inhibiting the germination from the upper 15 cm.
Solarization treatment for 6 weeks significantly increased number of infected roots by VAM/100 roots of pepper.
Concerning organic fertilizer and soil solarisation, gave significant increase in plant length, stem thickness and leaves number per plant when compared to pepper without organic fertilizer. Inoculation of pepper with VAM didn’t show any significant effect neither on plant length (cm) nor stem thickness (cm). However the number of leaves per plans was significantly increased due to inoculation.
Addition of organic fertilizer significantly increased pepper´s early yield, total yield, total number of fruits per plot and significantly increased fruit length and diameter.