作　　者： ; (申守营）;

机构地区： 华南农业大学资源环境学院

出　　处： 《磷肥与复肥》 2015年第1期48-50,共3页

摘　　要： 利用猪毛、风化煤和腐植酸钠的水解液为增效剂制备了一种增效过磷酸钙,探讨了增效过磷酸钙的增效机制及其对玉米生长的影响。结果表明,蒸馏水浸提条件下,增效过磷酸钙能减缓水溶磷的释放,具备较高的pH值缓冲性。与普通过磷酸钙相比,增效过磷酸钙处理的玉米生物量平均增加了41.9%,吸磷量和吸钙量分别增加了61.7%和27.8%,根系活力增加了24.3%。该研究结果对过磷酸钙生产的技术改进具有指导意义。 A synergistic single superphosphate(SSP) is produced with the hydrolysis product of pig hair,weathered coal and sodium humate. The synergizing mechanism of synergistic SSP and its effects on thegrowth of maize are investigated. The results show that, under digestion of distilled water, synergistic SSPcan slow the release of water-soluble P, and have a higher buffer capacity of pH value. Compared withcommon SSP, synergistic SSP can enhance the maize biomass, P and Ca uptake, and root activity by41.9%, 61.7%, 27.8% and 24.3% respectively. The results provide some scientific evidences and bases forthe technical improvement of SSP.

关 键 词： 增效剂 过磷酸钙 值缓冲性 玉米

领　　域： [农业科学]