TY - JA AU - Halvorson,A.D. AU - Lindsay,W.L. TI - The critical Zn2+ [zinc ion] concentration for corn and the nonabsorption of chelated zinc [Foliar diagnosis] SN - 0361-5995 U1 - 77-213477 PY - 1977/// KW - Maize KW - AGROVOC KW - Zea mays N1 - 20 ref.; Summary (En); Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0361-5995 T2 - Soil Science Society of America Journal ER -