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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 superphosphate was prepared by using hydrolyzate of pig hair, weathered coal and sodium humate as synergist. The synergistic mechanism of synergistic superphosphate and its effect on maize growth were discussed. The results showed that under the conditions of distilled water extraction, synergistic superphosphate slowed down the release of water-soluble phosphorous with high pH buffer. Compared with common superphosphate, synergistic superphosphate treatment of corn biomass increased by an average of 41.9%, P uptake capacity and calcium content increased by 61.7% and 27.8%, root activity increased by 24.3%. The results of this study are instructive for the technical improvement of superphosphate production.