Effect of Organic Amendments on Yield and Nutrients Uptake by Rice in Alkali Soils under Cauvery Command Area

摘要

Pressmud is an important byproduct of sugar industry. It contains 1.47 per cent P and considerable quantities of K, organic matter, Ca, Mg, S and micronutrients. These values are found to be very low. The fresh pressmud obtained by the single sulphitation process from the Mysugar factory, Mandya. A long-term manurial experiment on rice has been in progress since 1990-95 on an alkali soil (EC-1.21 dSrcr1, pH-9.92).