Effect of organic amendments on the alleviation of cadmium in red amaranth (Amaranthus gangeticus) grown in Cd-contaminated saline soils.

Cd-contaminated saline soil is now becoming a serious threat affecting sustainable agriculture throughout the world. In this study, organic amendments (OA) were applied to Cd-contaminated saline soils to, firstly, reduce the bioavailability of Cd in soil and, secondly, minimize Cd accumulation in red amaranth (Amaranthus gangeticus) plant. The soil was treated with 1% and 2% of cow dung (CD), vermicompost (VC), waste tea (WT), saw dust (SD), rice hull (RH), and compost.

Effect of Organic Amendments on Cadmium Bioavailability in Soil and its Accumulation in Rice Grain.

A pot trial was conducted during the boro (dry) season to evaluate the impact of six traditional organic amendments (OAs) on the growth of SL-8 rice variety in both agricultural and cadmium (Cd) stressed soil at 2% and 4% application rates. Traditional OAs used in the study were cow dung, mustard oil cake (MOC), rice husk, saw dust, tea leaf and vermi compost (VC). Except for cow dung all other OAs were found to remove 99% of Cd from the aqueous solution, while cow dung removed 95%.

Variations in cadmium accumulation among amon rice cultivars in Bangladesh and associated human health risks.

Rice consumption is one of the major cadmium (Cd) exposure routes for human. Bangladeshi people have historically subsisted on a rice-based diet; however, only a few reports have investigated Cd accumulation by different rice cultivars in Bangladesh. This study was designed to investigate the uptake and accumulation of Cd in different rice cultivars and associated health risks to humans eating rice.