TY - BK AU - Jones,J.B. TI - Plant analysis techniques PY - 1989/// CY - Athens, GA (USA) PB - Benton Laboratories, KW - Diagnosis KW - Methods KW - Nitrogen fixation KW - Plants KW - Sulphur KW - Testing KW - Tissue analysis KW - Tissue extracts N1 - Tables, graphs, references, appendices ER -