TY  - BOOK
TI  - Fertilizing for high yield and quality sunflower
T2  - IPI-Bulletin, no.10
U1  - PH 631.816' 559.2:633.854.78(047)   M8 
PY  - 1988///
CY  - Bern
PB  - IPI
KW  - Glas, K.
KW  - Sunflower,Sunflower-fertilizers
ER  -