TY  - BOOK
ED  - Rothamsted Experimental Satation
TI  - Rothamsted  conferences on present day problems on crop production  
PY  - 1929///
CY  - Harpenden
PB  - Rothamsted Experimental Station
KW  - Crop ManagementCropping PatternsCultivation
N1  - v. 2, 1928-1929
ER  -