TY  - BOOK
AU  - Joseph Mercykutty
AU  - Sudhakumari B
TI  - Assessment of zinc availability in the ultisols of South India under rubber cultivation
PY  - 2013///
PB  - Journal of the Indian Society of Soil Science
KW  - Rubber cultivation
KW  - South India
KW  - Ultosols
KW  - Zinc
ER  -