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Boron Deficiency in Tea


TEA must be the last commodity crop to show a need for boron. This is probably due to its low calcium requirement and to the fact that tea gardens are very rarely limed. The boron deficiency syndrome first appeared accidentally in a pot experiment testing five different soils for natural potassium uptake. All plants in two soils when they were about 30 cm. high died off at their growing points and developed corky excrescences on the undersides of petioles. These two soils were known from previous pot tests with tomatoes to be deficient in boron.

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CHENERY, E. Boron Deficiency in Tea. Nature 181, 426 (1958).

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