TY - BOOK AU - Manjhi ,Duryodhan TI - Elucidation of equilibria of sodium,calcium and magnesium in sodic calcareous soils as affected by use of chemical and organi waste in relation to the growth and nutrition of rice crop KW - Sodium KW - Calcium KW - Magnesium KW - Sodic soil KW - Growth KW - Nutrition KW - Crop KW - Rice KW - Yield ER -