Impact of Water Regimes and Amendments on Inorganic Arsenic Exposure to Rice.

ABSTRACT: Rice-based diet faces an important public health concern due to arsenic (As) accumulation in rice grain, which is toxic to humans. Rice crops are prone to assimilate As due to continuously flooded cultivation. In this study, the objective was to determine how water regimes (flooded and aerobic) in rice cultivation impact total As and inorganic As speciation in rice on the basis of a field-scale trial in the post-monsoon season. Iron and silicon with NPK/organic manure were amended in each regime. We hypothesised that aerobic practice receiving amendments would reduce As uptake in rice grain with a subsequent decrease in accumulation of inorganic As species relative to flooded conditions (control). Continuously flooded conditions enhanced soil As availability by 32% compared to aerobic cond

SUBMITTER: Majumder S 

PROVIDER: S-EPMC8123884 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature