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\begin{document}

\title{Combining mercapto-functionalized palygorskite with zinc affect cadmium
phytoavailability and soil microbial activity in rhizosphere soil}



\author[1]{Yulong Li}%
\author[1]{Chao Gao}%
\author[1]{Sashuang Rong}%
\author[2]{Jialin Gu}%
\author[3]{Huiwei Zhao}%
\author[4]{Shiming Su}%
\author[1]{wei liu}%
\affil[1]{Hebei University}%
\affil[2]{Beijing Academy of Agricultural and Forestry Sciences}%
\affil[3]{National Semi-Arid Agricultural Technology Research Center}%
\affil[4]{Chinese Academy of Agricultural Sciences}%


\vspace{-1em}



  
  \date{May 25, 2024}


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\selectlanguage{english}
\begin{abstract}
Cadmium (Cd) pollution in soil pose a grave threat to human health.
Combining various approaches to reduce Cd accumulation in crops is an
active area of research to remediate farmlands with medium-high levels
of Cd contamination. The Mercapto-functionalized palygorskite (PGS-SH)
and zinc (Zn) application alone or in combination was investigated to
explore reduction of Cd uptake in B. chinensis L and transformation of
Cd in soil. The sole application of Zn or PGS-SH increased the biomass
of B. chinensis L. and decreased the concentration of Cd in plants, but
more improvements were observed from the combined application of Zn and
PGS-SH. Low concentration of exogenous Zn (50 mg/kg) significantly
increased the soil respiration rate (SRR) and the soil dehydrogenase
activity (sDHA), while promoted B. chinensis L. growth while inhibiting
Cd uptake. However, excessive exogenous Zn ([?] 200 mg/kg) significantly
inhibited B. chinensis L. growth and soil microbial activity. The
combined application of PGS-SH and Zn had the highest sDHA (145.59\%)
and lowest transport factor (TF) (27.59\%) compared with the CK. The
combination of PGS-SH and Zn fertilizer is a safe and effective means
for remediating Cd-contaminated soil and restoring microbial activity.%
\end{abstract}%



\sloppy


Highlights:

Mercapto-functionalized palygorskite is an excellent Cd stabilizer in
soil.

Exogenous Zn significantly reduced Cd uptake in \emph{Brassica
chinensis} L.

Low-level exogenous Zn treatment (50 mg/kg) significantly increased the
SRR and sDHA.

The combination of PGS-SH and Zn is feasible for remediation of
Cd-contaminated soil.\selectlanguage{english}
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\textbf{Hosted file}

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\textbf{Hosted file}

\verb`Tables and Figures.docx`  available at \url{https://authorea.com/users/419412/articles/525925-combining-mercapto-functionalized-palygorskite-with-zinc-affect-cadmium-phytoavailability-and-soil-microbial-activity-in-rhizosphere-soil}

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