| migration of (14)c in the paddy soil-to-rice plant system after (14)c-acetic acid breakdown by microorganisms below the plow layer. | migration of (14)c derived from (14)c-acetic acid was examined by using soils sampled from paddies in four administrative areas in japan (aomori, yamanashi, ehime and okinawa) and rice plant in a tracer experiment to understand the fate of (14)c in the paddy soil-to-rice plant system. the loss of (14)c radioactivity levels derived from (14)c-acetic acid was caused by soil microorganism breakdown. a part of the (14)c fixation to soil was caused by microbial assimilation into the fatty acid fracti ... | 2010 | 19896253 |
| transfer of 137cs and stable cs from paddy soil to polished rice in aomori, japan. | rice is a staple food in japan and other asian countries, and the soil-to-plant transfer factor of 137cs released into the environment is an important parameter for estimating the internal radiation dose from food ingestion. soil and rice grain samples were collected from 20 paddy fields throughout aomori prefecture, japan in 1996 and 1997, and soil-to-polished rice transfer factors were determined. the concentrations of 137cs, derived from fallout depositions, stable cs and k in paddy soils wer ... | 2002 | 11954722 |