TY  - BK
AU  - Hamblin,A.
AU  - Kyneur,G.
TI  - Trends in wheat yields and soil fertility in Australia
SN  - 0-664-29628-3
U1  - 338.1694 
PY  - 1993///
CY  - Canberra (Australia)
PB  - BRS, 
KW  - Australia
KW  - Cropping systems
KW  - AGROVOC
KW  - Plant production
KW  - Productivity
KW  - Wheat
KW  - Soil fertility
KW  - Farming systems
ER  -