金无踪对轻度重金属污染稻田稻米重金属降污效果评价

Effect of Jingwuzongon rice in slight heavymetal contaminated paddysoil

田间试验结果显示．金无踪能够显著降低重金属元素对水稻生长的毒害作用。不同施用量的金无踪，能够促进优质稻在轻度重金属污染下的生长，生育期显著提前1～2d；金无踪的施用能显著降低各种重金属在稻谷中的含量，稻谷产量也有所增加。试验结果表明，金无踪具有很好的治理稻田重金属污染的效果。

Field experiment indicated that Jingwuzong could inhibit the toxicity of heavy metal on rice. Jingwuzong could promote the growth and development of rice in slight heavy metal contaminated paddy soil, it could decrease the content of different heavy metal elements in the seed and the straw of rice. It could also increase the rice yield slightly.