TY  - BOOK
AU  - Benbi, D. K. and others,
TI  - Proceeding of the International Symposium Vol. I Invited Papers Balanced Fertilization for Sustaining Crop Productivity
SN  - 9783952324325
U1  - 631.5 
PY  - 2006///
CY  - Switzerland
PB  - International Potash Institute Horgen.
KW  - Techniques, equipment & materials
ER  -