Leaf analysis and fertilizer response

Proebsting, E

Leaf analysis and fertilizer response

Author

E. L. Proebsting

Author Affiliations

E. L. Proebsting is Professor of Pomology, University of California, Davis.

Publication Information

Hilgardia 14(6):10-10. DOI:10.3733/ca.v014n06p10a. June 1960.

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Abstract

An apple orchard in the Booneville area of Mendocino County was shown, by leaf analyses, to be low in phosphorus and potassium. Test plots were established in the orchard in 1952, and fertilized with nitrogen, potassium, and phosphorus. In 1956 potassium sulfate alone was applied. The amounts of phosphorus and potassium were greater than ordinarily used by growers.

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