摘要
通过物理研磨的方式处理普通富含硅的硅藻土和膨润土,得到的材料通过扫描电镜及粒度分析仪表征,结果表明, 粒径在100 nm以下,属于纳米材料.以普通材料和纳米材料为叶面肥, 喷施盆栽苋菜,研究各处理的生物量及植株NPK含量的差异.硅肥处理后的苋菜干重及植株全NPK均高于对照.纳米硅藻土处理苋菜干重比非纳米硅藻土处理提高12.6 %, 纳米膨润土处理比非纳米膨润土处理提高19.8 %; 对应的植株NPK总量分别提高21.83 %和26.35 %.该研究为矿石材料在肥料领域中的应用提供了实践基础.
Nano diatomite and nano bentonite were prepared via physical grinding in nano sander fromdiatomite and bentomite. Scaning electron microscope （SEM） observation illustrated that the particlesize of several material was less than 100 nm which were consistent with the results of particle sizeanalyzer. The pot experiment was conducted to investigate effects of the different material as foliarapplication on amaranth. A comparison of several treatments showed that both nano diatomite and nanobentomite increased the dry biomass by 12.6% and 19.8%, respectively;the total NPK content of thecorresponding plant were increased by 21.83% and 26.35 %, respectively. These results provided asignificant practical foundation for the potential application of ore material such as diatomite andbentonite .
关键词
硅肥
纳米材料
制备
应用
silicon fertilizer
nanomaterial
preparation
application
