الفهرس 
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Abstract
The aim of this investigation is to achieve fertilization integration between two sources of organic fertilizers (chicken manure and compost) commonly used under Egyptian conditions and biofertilizer with the additional impact of foliar application treatments (humic acid, seaweed and yeast extracts) and their effect on the vegetative growth, yield and quality of sweet pepper fruits.
The experimental layout was split split system in a randomized complete block design with three replicates. The main plots were devoted for organic fertilizer sources, while the sub plots were for the biofertilizers. Foliar application treatments were randomly distributed in the sub sub plots. Seedlings were transplanted on one side of ridge at 50 cm a part 5 m long and 0.75 m wide.
The obtained results indicated that:
1-The best values of vegetative characters as well as chemical constituents of leaves were recorded when plants supplied with chicken manure at 2.43 ton/fed. as compared with compost. Also, plants flowered earlier and achieved an improvement in yield and fruit quality parameters in both seasons.
2-. Plants in the presence of biofertilizers recorded the best values of all previous parameters and pushed plants to early flowering as compared with untreated plants in both seasons.
3-Spraying plants with either seaweed extract yeast extract enhanced performance of sweet pepper plants in both seasons as compared with humic acid or the check treatment.
Conclusion: Sweet pepper plants fertilization with chicken manure at 2.43 ton/fed. in the presence of biofertilizers (Azotobacter chroococcum, Bacillus circulans bacteria and Mycorrhiza fungi) and spraying the plants with seaweed extract at (2.5 ml/L) or yeast at (5 g/L) gave balanced vegetative growth and produced high yield with acceptable quality under the conditions of this study.