TY  - BOOK
AU  - Olofsson, S. 
TI  - Influence of preceding crop and crop residue on stand and yield of winter wheat (Triticum aestivum L.) in different tillage systems, including zero tillage
PY  - 1993///
CY  - Uppsala, Sweden
PB  - Swedish University of Agricultural Sciences
KW  - Tillage systems--Winter wheat Winter wheat--Crop development
ER  -