Quantification and Toxic Effects of Phenolic Acids on Paddy Seedlings in Paddy Soil

Laboratory incubation conducted to study the toxic effect of decomposition of Parthenium and Chromolaena and their respective compost under flooded condition. Increasing the level of organic carbon application through different sources increased the water extractable phenols, water insoluble alkali extractable phenols and total extractable phenols. The contents of the three forms of phenols increased from 15th to 45th day of flooding and then decreases. Plant height and ischolar_main length was maximum during sixty days after flooding with the incorporation of organic manures.