TY  - BOOK
AU  - Joseph M.[a]
AU  - Ranganathan C.R.
TI  - Diagnosis and recommendation integrated system. 2. Derivation of critical level of leaf nutrient concentrations in rubber
PY  - 1996///
PB  - Indian Journal of Natural Rubber Research
KW  - Critical value
KW  - DRIS
KW  - Foliar analysis
ER  -