TY  - BOOK
AU  - Phillips, T.
AU  - Hepler, J.R.
AU  - Smith, T.O. 
TI  - Some effects of potassium and nitrogen on the composition of the tomato plant
CY  - Durham, N.H.
PB  -  Agricultural Expriment Station
KW  - Nitrógeno
KW  -  efecto en tomate
KW  - Potasio
KW  -  efecto tomate
ER  -