TY - JA AU - Sumner,M.E. TI - Interpretation of foliar analyses for diagnostic purposes [Critical value approach and the Diagnosis and Recommendation Integrated System, maize, soybeans, sugarcane, potatoes] SN - 1435-0645 U1 - 80-514788 PY - 1979/// KW - Fertilizers KW - AGROVOC KW - Maize KW - Potatoes solanum tuberosum KW - Soybean glycine max KW - Sugar cane saccharum officinarum KW - Zea mays KW - Soil fertility N1 - ill. 22 ref; Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0002-1962 T2 - Agronomy Journal ER -