Abstract
In this paper, La2O3/SiO2 material was synthesized and applied for growth stimulants of Salvia miltiorrhiza Bunge. La2O3/SiO2 material was successfully synthesized from La(NO3)3 and SiO2 precursors by solid-phase thermal method. The material properties were confirmed through physicochemical characterization methods including XRD, EDX, IR, and SEM analysis. The results of using La2O3/SiO2 as a stimulating plant growth material for Salvia miltiorrhiza plants indicated that the use of La2O3/SiO2 on Salvia miltiorrhiza plants had a significant effect. In the experimental model, the dry root yield increased by 0.27 tons/hecta, the root length increased by 3.6 cm on average, and the harvest time for Salvia miltiorrhiza was eleven days earlier. Additionally, the Salvia miltiorrhiza with La2O3/SiO2 material was tougher than that without it, and gold leaf symptom was not observed in the experimental Salvia miltiorrhiza. Thus, the data suggested that La2O3/SiO2 had a favorable effect on alvia miltiorrhiza the harvest time for Salvia miltiorrhiza was eleven days.
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