Yield of some cereal crops as affected by irrigation interval and fertilization in Fayoum calcareous soil [electronic resource].

Includes references.

The present investigation was carried out at Kom Oshim Farm, Agric. Res. Station, Fayoum governorate during the two successive seasons 2002 and 2003 to evaluate the effect of two irrigation intervals (2 and 3 weeks), farmyard manure, (0, 10 and 20 FYM ton/fed) and nitrogen fertilizer (0, 50 and 100 kg N/fed) added to the soil in a split-split plot design on grain yield, protein and carbohydrate contents of sorghum (cv. Giza 15) and wheat (cv. Sakha 69). The obtained results could be summarized in the following: • The irrigation intervals had a positive significant effect on wheat grain yield, but it was insignificant concerning sorghum. Protein and carbohydrate % in grains for both the two crops were markedly decreased using 3 weeks interval. • Applying FYM up to 20 ton/fed or nitrogen fertilizer up to 100 kg N/fed had a positive effect on grain yield, also the increase of protein % or total carbohydrate % was found in these fertilization levels for the two crops. • The present study showed that the second and the third interactions (irrigation interval, FYM and N application) were significant in the case of grain yield in both the two crops and the treatment of 20 FYM ton/fed, 100 kg N/fed and two weeks irrigation interval was the highest in grain yield and yield components of protein and carbohydrate for the two crops.

Summary in Arabic.

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