Addition of livestock manures and plant residues is a
feasible practice to largely mitigate soil-degradative trends
by the soil-dwelling fungi. However, long-term impacts
of these fertilization regimes on the fungal community are
poorly documented in tea (
Camellia sinensis
(L.) Kuntze)
plantations in subtropical areas. In this study, MiSeq
sequencing approach was used to estimate the diversity and
composition of fungal communities in soils treated with
10 yr of non-fertilization control (CK), chemical fertilizers
only (CF), and integrated use of chicken manure and
legume straw with chemical fertilizers (IF), respectively.
We found that different fertilization treatments produced
little effect on the richness and diversity of soil fungi
compared to those of the controls. In addition,
Ascomycota,
Basidiomycota,
Zygomycota,
Glomeromycota, and
Chytridiomycota were the five most abundant phyla in
soils under different fertilization treatments. Moreover,
IF resulted in the prevalence of the genera
Fusarium
,
unclassified
Microascaceae, and unclassified
Ascomycota,
which accounted for 30.04%, 18.77%, and 6.92% of
the total fungi, respectively. Additionally, the relative
abundance of the phylum
Ascomycota was positively
correlated with pH, total N (TN), soil organic C (SOC),
soil moisture (SM) and silt (SI) contents; however, these
soil physicochemical properties were negatively correlated
with the relative abundance of the phylum
Basidiomycota.
Together, these results suggest that the changes of the
fungal community structure at the genus and phylum level
under IF treatment could be the result of their responses to
variations of soil pH, SM, TN, SOC, and SI contents.
