Effect of foliar application of phosphorus on cotton growth, yield and yield components [electronic resource].

Includes reference.

Two series of experiments were carried out at Sakha Agricultural Research Station during 2001 and 2002 seasons to study the effect of foliar spray of the aqueous filtered solution resulting from superphosphate (15.5% P₂O₅) 5% concentration at start of flowering, start and peak of flowering. start and end of flowering, peak and end of flowering, end of flowering and start, peak and end of flowering stage on the earliness of cotton plants (Giza 86). The experimental design was randomized complete blocks with four replications. The results revealed that: strong vegetative cotton plants become more sensitive for phosphorus application. All treatments decreased significantly final plant height (cm), leaf area (cm)²/plant and dry weight g/plant, and increased number of open bolls per plant, seed cotton yield per feddan, seed index, earliness percentage and boll weight, however lint percentage was not affected.

Summary in Arabic.

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