摘要
通过污染区稻田采样调查和水稻盆栽试验，研究了不同价态锑化合物对水稻生长发育的危害和对产量的影响及被污染土壤的改良措施．结果表明，锑矿的开采和冶炼对周围土壤和农作物能造成一定程度的污染；锑能影响水稻的生长发育，不同价态锑化合物对水稻的危害程度明显不同，三价锑的毒害远重于五价锑；土壤施用石灰、钙镁磷肥作改良剂，能减轻锑对水稻的危害，并降低水稻各部位锑的残留水平．
Based on the pot-culture method and field sampled in the polluted areas,the ef-fects of antimony Sb(Ⅲ),Sb(V on the growth of rice and the soil amendment have beenpreliminarily studied.The results are as follows: Exploiting and smelting of antimony in-creased the concentrations of antimony in soils surface.Antimony can affect the growth ofrice plant;The effects of Sb(Ⅲ),Sb(Ⅴ)on the damage of rice plant are different. The dam-age of Sb(Ⅲ)to rice is far more than that of Sb(Ⅴ):The soil amendmented with lime andCa-Mg-P fertilizer can decrease the damage to the rice plant and its absorbtion of antimony.
关键词
锑
水稻
污染
土壤改良
antimony
paddy
contamination
soil improvement
