TY  - JA
AU  - Sumner,M.E.
TI  - Interpretation of nutrient ratios in plant tissue [Maize, wheat, foliar diagnosis]
SN  - 0010-3624
U1  - 79-433859 
PY  - 1978///
KW  - Fertilizers
KW  - AGROVOC
KW  - Maize
KW  - Wheat triticum spp
KW  - Zea mays
KW  - Soil fertility
N1  - ill.; 20 ref; Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0010-3624
T2  - Communications in Soil Sciences and Plant Analysis
ER  -