TY  - BOOK
AU  - Kvist, Mats
TI  - Catch crops undersown in spring barley-competitive effects and cropping methods
U1  - 633.16 K98C 
PY  - 1992///
CY  - Upsale, Sweden
PB  - Dept of Crop Production Science, Swedish Uni. of Agri. Sci.
KW  - BARLEY
KW  - CATCH CROPS
KW  - CROPPING SYSTEMS
ER  -