TY - BOOK AU - Srivastava,P.C. AU - Gupta,U.C. TI - Trace elements in crop production SN - 1886106622 AV - S587.5.T7 S75 1996 PY - 1996/// CY - Lebanon, NH PB - Science Publishers KW - Trace elements in agriculture KW - Trace elements in plant nutrition KW - Trace elements in animal nutrition N1 - Includes bibliographical references (p. [266]-334) and index ER -