TY  - SER
AU  - Greef, Jorg M.,
TI  - Journal of Agronomy And Crop Science Vol. 200(4-6)
U1  - 630 
PY  - 2014///
CY  - United State
PB  - Blackwell Verlag
KW  - Agronomy
KW  - Crop Science
ER  -