Contribution of High Accumulated Polyphenols to C Stabilization in Soil of Tea Gardens

Fan, Daiming; Zhu, Qing; Luo, Yu; Wang, X. C.

doi:10.1007/978-94-007-5634-2_72

Cited by 1 publication

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“…Exchangeable aluminum (Ex-Al) and acid-soluble aluminum (Col-Al) were extracted by KCl (1 M) and HCl (1 M), respectively, and measured by flame photometry [4]. Total phenols (TP) and bound phenols (BP) were determined by the modified Folin-Ciocalteu method [7,40].…”

Section: Soil Physicochemical Propertiesmentioning

confidence: 99%

Effect of Calcium Cyanamide on Soil Fungal Community in Successive Tea-Cuttings Nursery

et al. 2021

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The effects of calcium cyanamide on the soil fungal communities in successive tea-cuttings nursery soils were investigated based on Illumina high-throughput sequencing. The field experiment was carried out with three treatments, including control (CK), flooding (F) and calcium cyanamide (CC). The treatment with calcium cyanamide increased pH (~1 unit) and reduced the accumulation of phenols (~50%), available phosphorus (~28%) and exchangeable Al (~90%) significantly, and improved soil quality. The predominant phylum in all treatments was Ascomycota. FUNGuild revealed that the dominant trophic mode was saprotrophy in tea-cuttings nursery soil. Plant pathogens had a low abundance in the calcium cyanamide treatment. Alpha diversity analysis showed lower richness in the calcium cyanamide than the other treatments. Network analysis showed a poorly connected but highly modularized network in the calcium cyanamide treatment, with the crucial OTUs functions related to anti-pathogenicity. The results showed that calcium cyanamide should be recommended for improving long-term tea nurseries by increasing the survival rate of tea seedlings due to increasing soil pH value, reducing aluminum toxicity, decreasing the accumulation of polyphenols, diminishing pathogenic fungi and making the taxa related to anti-pathogenicity occupy a more important niche.

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Section: Soil Physicochemical Propertiesmentioning

confidence: 99%