الفهرس 
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Abstract
This study was initiated during two consecutive seasons of 2001/2002 and 2002/2003 on second and third rations of Williams banana plants.Plants are grown in a private orchard situated at Kafr Gomaa village, Beni Suef Governorate,. The soil texture is silty clay planting distance was 3.5 x 3.5m.
The experiment included the following two factors.
1- The first factor consisted from the three organic N sources namely Compost El-Neel, F,Y,M and Fiter mud.
2-The second factor contained the four ratios from organic, inorganic N forms at fixed N rate namely 450 g N/plant namely 0.0 % organic: 100 % inorganic, 25 % : organic 75 % inorganic, 33.3 % organic: 66.7 % inorganic and 50 % organic: 50 % inorganic.
The three organic N fertilizers were added once at the last week of December while inorganic N fertilizer was added at 14 equal doses applied at two weeks intervals starting from early April to the last week of October.