高吸水性树脂与微肥相互作用的研究

Study on the relationship between the high water absorption resin and the microelement fertilizer

采用自然过滤法及火焰法原子吸收分光光度法研究了高吸水性树脂的吸水性和保肥性,探讨了高吸水性树脂与各种微肥的相互作用。结果表明,微肥中各种盐类降低了高吸水性树脂的吸水率,其影响规律如下:Na2B4O7>MnSO4≈CuSO4≈ZnSO4>FeSO4。同时,高吸水性树脂对各种微肥有一定的吸持作用,其吸肥量随微肥浓度增大而增加。

The capacities of absorbing water and microelemem fertilizer of the high water absorbent resin were studied using natural filtration and FAAS, the relationship between the resin and the fertilizer was discussed. The result showed that all kinds of salt of microelement fertilizer decreased the water absorbency of the resin, the order was： Na2B4O7〉MnSO4≈CuSO4≈ZnSO4〉FeSO4. Meanwhile, the fetilizer retention capacity of resin increased with increasing concentration of the fertilizer.