TY  - BOOK
AU  - Plucknett,Donald L
AU  - Sprague,Howard B
TI  - Detecting Mineral Nutrient Deficiencies in Tropicial and Temprate crops
SN  - 8170891337
U1  - 613.28 
PY  - 1990///
CY  - Dehra Dun
PB  - International Book Distributors
KW  - Cereal crops
ER  -