Potassium nutrition and deficiency in citrus
California Agriculture 28(8):6-8.
Published August 01, 1974
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POTASSIUM DEFICIENCY OF CITRUS in California had not been recognized prior to about 1960. Since then, experimental work has led to a greater understanding of potassium nutrition and the effects of potassium levels (as determined by leaf analysis) on yield and fruit quality of oranges, lemons and grapefruit.