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盆栽条件下,将2种保水剂黑金子和旱露植宝分别以质量比0.4%、0.6%及0.8%的用量应用于铁尾矿植物(香葱)复垦中,研究其对于植物(香葱)生长及铁尾矿性质的影响。结果表明:香葱在铁尾矿中培养30 d后,黑金子保水剂处理下香葱根系干重依次比对照增加了30.00%、25.00%及-10.00%,0.4%和0.6%处理与对照之间差异显著(P<0.05)。旱露植宝处理下的根系干重则比对照依次增加了17.94%、16.18%及6.91%,且0.4%处理的单株香葱的总干重最大,差异显著(P<0.05)。2种保水剂可以有效提高铁尾矿的含水率和总孔隙度,降低铁尾矿容重。总之,在铁尾矿植被复垦中保水剂黑金子可选择0.6%、旱露植宝选择0.4%的添加量效果最优。
Under the condition of pot culture, two kinds of water-retaining agent, black gold and dried alfalfa, were respectively applied to reclamation of iron-tailing plants (chives) at the mass percentages of 0.4%, 0.6% and 0.8% Onion) growth and the nature of iron tailings. The results showed that the root dry weight of chives increased 30.00%, 25.00% and -10.00%, 0.4% and 0.6% respectively compared with the control after the chive was cultured in iron tailings for 30 days The difference was significant (P <0.05). The root dry weight of the dry lotus seedlings increased by 17.94%, 16.18% and 6.91% respectively compared with the control, and the total dry weight of 0.4% of the treated chives was the largest (P <0.05). Two kinds of water retaining agent can effectively improve the iron tailings moisture content and total porosity, reduce iron tailings bulk density. In short, in the reclamation of iron tailings water retention agent black gold can choose 0.6%, dry eye lotion selected 0.4% of the best addition.