TY  - JA
AU  - Santos,G.L.
AU  - Olsen,F.J.
TI  - Response of hybrid and open-pollinated maize cultivars to nitrogen fertilizer in Southern Brazil
SN  - No (Revis
U1  - 78-236370 
PY  - 1977///
KW  - Brazil
KW  - Maize
KW  - AGROVOC
KW  - Zea mays
N1  - 6 ref. Summary (En)
T2  - Tropical Agriculture
ER  -