TY  - BOOK
AU  - Terman, G.L.
AU  - Cunningham, C.E.
AU  - Hawkins, Arthur
AU  - Struchtemeyer, R.A.
TI  - Rate, placement and source of nitrogen for potatoes in Maine
T2  - (maine Agricultural Experiment station bulletin; 490)
PY  - 1951///
CY  - Orono
PB  - University of Maine
ER  -