Diagnosis of mineral disorders in plants - Bould, C. (Cyril); Hewitt, E. J. (Eric John), 1919-; Needham, P. (London : H. M. S. O., 1983)
Vol.1 : Principles by the late C. Bould and E. J. Hewitt and P. Needham
Includes bibliographies and indexes
Keywords: Field crops -- Diseases and pests