TY  - BOOK
AU  - Gupta U. S.
TI  - Physiological aspects of crop nutrition and resistance
U1  - 633 
PY  - 1977///
CY  - New Delhi
PB  - Ram Lal Pury
KW  - Plants -- Nutrition.
KW  - Plant physiology
KW  - Growth (Plants)
N1  - includes index
ER  -