TY  - BOOK
AU  - Terman, G.L.
AU  - Carpenter, P.N.
AU  - Cunningham, C.E.
AU  - Hawkins, Arthur
TI  - Rate placement and source of phosphorus fertilizers for potatoes in Maine
T2  - (maine Agricultural Experiment station bulletin; 506)
PY  - 1952///
CY  - Orono
PB  - University of Maine
ER  -