الفهرس 
INTRODUCTION
Measurements of vegetative charactersOnly 14 pages are availabe for public view
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Abstract
Effect Of Different Sources And Methods Of Nitrogen Applications On Vegetative Growth And Fruiting Of Valencia Orange Trees(Citrus Sinensis .L)
This study was conducted during 1999/2000 and 2000/2001 seasons on forty –three years old Valencia orange trees onto sour orange rootstock at the Orchard of sids Horticultural research station, sids, Bani-Suef Governorate. The texture of soil is clay loam.
The objective of this experiment was throw some light on the influence of different sources, levels and methods of N applications on growth, behavior of flowering, fruit setting , yield as well as physical and chemical properties of Valencia orange trees. The hop is to suggest the optimum source, level and method of N applications