الفهرس 
Introduction
Vegetative GrowthOnly 14 pages are availabe for public view
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Abstract
This work was canied out at the Experjrnental Farm of Faculty of Agriculture, Kafr El-Sheikh during I996197 and 1997198 seasons 011 two Dutcli sweet pepper hybrids cultivated under unheated plastic houses. It aimed to study the effect of pepper hybrids, N levels, N sources and their combinations on vegetative growth, fi-uit yield and fiuit quality as well as chemical analysis of plants and soil. The experiments included 28 treatments which were the combinations of two pepper hybrids, two N levels and seven N sources as follows: I- Pepper hybrids were Gedeon F1 and Salvita Fl (supplied by Sluis and Grot and Rijk Zwaan Companies). II- Nitrogen levels were 90 and 180 kg Nlfed. III- Nitroger) sources were: 1 - Farmyard manure (FYM). 2- Cornposted yard wastes (comp.). 3- Poult~ym anure (P.M.). 4- FYM + Ammonium sulpllate. (I : 1 in N level). 5- Comp. + Ammoniutn sulphate. (1: 1 in N level). 6- P.M. -I- Arnmoniutn sulphate. (I : 1 in N level). 7- Ammonium sulphate. Nitrogen fertilizer as ammonium sulphate (20.5% N) was added to the soil, since 12.5% of the whole quantity frotn each level that was mixed with organic source was applied in trenches after preparation of the soil. While, the other quantity of N mineral fertilizer was divided into three equal parts added at monthly intervals starting thee weeks after tsansplanting. The recornmended fertilizers of P and K were also added. The different treatments were at~anged in a complete randomized block design with three replications. Area of the experi~nentapl lot was 5.6 m2 in both seasons. Data were tested by analysis of variance and ~~~ncmwul’tispl e range test was used for comparisons among the treatment means.