TY  - BOOK
AU  - Symposium on Micronutrients in Agriculture, Alabama, Apr.20-22,1971.
TI  - Micronutrients in agriculture; proceedings
U1  - 631.81.095.337 1971.4.20/22 (082.2) L2 
PY  - 1972///
CY  - Wisconsin
PB  - Soil Science of America
KW  -  J.J.Mortvedt.
KW  - Mortvedt, J.J., joint ed.
KW  - Trace elements-nutrition,Soil-trace elements ,Soil micro-organisms
ER  -