| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To establish a technical system capable of decontaminating heavy metal pollution in a large scale area in a wide region ranging from a cold district to a warm district in a decontamination method of heavy-metal-polluted soil by planting,. <P>SOLUTION: In this decontamination method of heavy-metal-polluted soil, plants are planted on the ground polluted with heavy metals, and grown up plants are removed from the planted ground to be treated. The planted plant is rice plant. In planting, an application amount of nitrogen is preferably 1.1 to 2 times of that of the ordinary rice planting. The soil moisture state after the maximum tillering stage is preferably set to a level of a moisture content of muddy fields or a moisture content of capillary disconnection. The rice plant is preferably an Indian breed and/or an Indian-Japanese hybridized breed, especially preferably a hardly-shattering Indian breed. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
