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The effect of potassium fertilization on growth and yield of cotton (Giza 76) grown in saline soils


, : The effect of potassium fertilization on growth and yield of cotton (Giza 76) grown in saline soils. Annals of Agricultural Science Cairo 40(2): 621-628

In a field experiment on a clay soil (containing 660-700 p.p.m. K) in 1993-94 at Sakha Agricultural Research Station, Egypt, cotton Giza 76 was given 0 or 24 kg K2O/feddan before sowing, 40 d after sowing (DAS) or at the onset of flowering, or foliar application of 1% K2O as potassium sulfate 2 weeks after flowering (WAF) or 1% K2O as Poly-Feed (containing also 12% N + 3% P2O5) 2 and 4 WAF or 24 kg K2O at 40 DAS + foliar application of 1% K2O as potassium sulfate and/or Poly-Feed.

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