TY  - BOOK
AU  - Birecki, M.
TI  - (The influence of vernalization and supplementary fertilization on the development and yields of potatoes)
KW  - Fertilizantes para papa
KW  - Papa
KW  - Investigación
N1  - Sobretiro de : Roczniki Nauk. Rolniczych. 69 A (4) : 477-527, 1954
ER  -