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Appearance of potassium deficiency in cotton/food crop rotations on a ferrallitic soil in the Central African Republic



Appearance of potassium deficiency in cotton/food crop rotations on a ferrallitic soil in the Central African Republic



Potassium in Tropical Crops and Soils, Proceedings, 10th Colloquium, International Potash Institute, Abidjan: 279-289



K fertilizers are needed when visual symptoms of K deficiency appear in the cotton crop or preferably when petiole K approaches the critical level, a condition that precedes the onset of visual symptoms.

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