INFLUENCE OF LIME MATERIALS TO AMELIORATE ACIDITY ON IRRIGATED PADDY FIELDS: A REVIEW

The importance of lime application to ameliorate acidity on paddy field has been reviewed. Emphasis is placed on acid sulfate commonly found in Southeast Asia and other related areas to which reference could be found. Most of the authors show that in acid sulfate soils, high content of Al caused adverse effect to rice growth. Application of lime precipitates Al and Fe in the soil and result in higher rice yield. The paper specifically covers the extent and types of acid sulfate soils, amelioration using lime and other combinations in rice cultivation and management.