الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Two field experiments were carried out at Shandaweel Agricultural Research Station, Sohag Governorate in 2013 and 2014 seasons to study the effect of irrigation intervals, planting density and nitrogen fertilization on yield and quality of sweet sorghum [Sorghum bicolor (L.) Moench var. saccharatum]. A split-split plot design with four replications was used in both seasons. The results showed that stalk length, stalk diameter, sucrose %, reducing sugars% as well as forage and stripped stalk yields/fed were significantly affected by the three studied factors, in both seasons. Shortening irrigation interval from 28 to 21 and to 14 days was accompanied with a significant and gradual increase in stalk length, diameter as well as forage and stripped stalk yields. Sucrose % was increased with widening irrigation interval from 14 to 21 days. Prolonging irrigation interval from 14 to 28 days caused a reduction in forage and stripped stalk yields. Increasing the density of plants per unit area resulted in a gradual increase in stalk height, forage and stripped stalk yields. Raising N fertilization level from 70 up to 110 kg N/fed caused an ascending increase in stalk length, diameter, forage and stripped stalk yields of sweet sorghum.