الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Two field experiments were conducted during the fall br seasons of 2009 and 2010 to study the effect of water quality br irrigation and N fertilization on tomato(supper jackal) growth, br yield components and fruits quality. To achieve these targets br two water irrigation sources; Irrigation with fish culture water br (FCW) and Irrigation with Nile fresh water (NFW), were br combined with, two Nitrogen fertilizer forms; ammonium nitrate br NH4NO3 N and ammonium sluphate ((NH4)2SO4) and four N br fertilization levels; 80,120,160 and 200 kg N/fed. split-splitplot. br The experimental layout was system in complete br randomized blocks design with three replications. The main br results, obtained were as follows: br 1-Irrigation tomato plants with fish culture water caused a br significant increase in the number of leaves/ plant, biomass dry br weight/ plant in the first season, leaf area/ plant, early, br marketable and total fruits yield, stem P and K and leaf br carotenoids concentrations, T.S.S. in the first season only, br vitamin C. and lycopen contents in fruits of both seasons of br study. br 2- Fertilizing tomato plants with N in the form of ammonium br sulphate reflected a significant increase in the number of br leaves /plant, leaf area /plant, early, marketable and total fruits br yield, leaves N concentration, stem N concentration, stem K br concentration, total chlorophyll and carotenoids content of br leaves, T.S.S in the first season only, titratable acidity %, br vitamin C. and lycopen concentrations in 2009 and 2010 br seasons. br 3- Application of N fertilization at the rate of 200 kg N/fed gave br the higher number of leaves /plant, biomass dry weight/ plant, br leaf area /plant, number of fruits /plant, early, marketable and br total fruits yield, total chlorophyll and carotenoids contents of br leaves, T.S.S., titratable acidity, vitamin C. and lycopen br contents in 2009 and 2010 seasons. br 4- The interaction between N fertilization form and N level br reflected significant increases leaf area /plant, vitamin C. and br carotenoids contents, in both seasons. The interaction between br irrigation water sources and N level significantly increased br vitamin C. in 2009 and 2010 seasons. br 5-The interaction between irrigation water sources , N forms and br N levels did not reflected any remarkable influence on br vegetative growth , fruits yield, chemical composition and br fruits quality, in both seasons