TY  - BOOK
AU  - SADANA, Upkar Singh
TI  - Zinc equilibria and nutrition of rice as influenced by amelioration of sodic soils
U1  - T 633.18 S11Z 
PY  - 1981///
CY  - Ludhiana
PB  - PAU
KW  - RICE -- FERTILIZERS AND MANURES
KW  - RICE
KW  - SODIC SOILS
KW  - SOIL CHEMISTRY
KW  - SOILS
KW  - SOILS -- SODIUM CONTENT
KW  - ZINC
N2  - Soil solution pH and Zn markedly decreased upto 14 days of submergence and thereafter, pH slightly increased but Zn concentration continued to decrease Addition of amendments decreased the pH gradually in the order gypsum, pyrites and FYM and increased Zn
ER  -