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Phosphorus nutrition of young golden delicious apple trees growing in gravel culture



Phosphorus nutrition of young golden delicious apple trees growing in gravel culture



Journal of the American Society for Horticultural Science 104(5): 682-685



'Golden Delicious' apple trees (Malus domestica Borkh.) growing in gravel culture required a minimum of 0.088% P in mature leaves for continued shoot growth. Immature leaves were a better index of P nutrition than mature leaves. A correlation of r = 0.959 was obtained between growth as indicated by increase in trunk circumference and percentage P over the range 0.05-0.35% P in immature leaves and r = 0.84 over the range 0.055-0.188% P for mature leaves.

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Accession: 006106903

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