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

Authors:Qiu, Qinli Fan, Dongmei Wang, Yinmao Huang, Danyi Wang, Yu Ma, Junhui Wang, Xiaochang

Source:

Volume:11

DOI:10.3390/agriculture11080716

Published:2021

Document Type:Article

Abstract: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 (similar to 1 unit) and reduced the accumulation of phenols (similar to 50%), available phosphorus (similar to 28%) and exchangeable Al (similar to 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.

Author Information

Corresponding Author:Wang, XC (通讯作者)，Zhejiang Univ, Tea Res Inst, 866 Yuhangtang Rd, Hangzhou 310058, Peoples R China.

Reprint Address:Wang, XC (通讯作者)，Zhejiang Univ, Tea Res Inst, 866 Yuhangtang Rd, Hangzhou 310058, Peoples R China.

Addresses:[Qiu, Qinli; Fan, Dongmei; Wang, Yinmao; Huang, Danyi; Wang, Yu; Wang, Xiaochang] Zhejiang Univ, Tea Res Inst, 866 Yuhangtang Rd, Hangzhou 310058, Peoples R China; [Ma, Junhui] Lishui Agr Bur, Lishui 323000, Peoples R China

E-mail Addresses:21816063@zju.edu.cn; 0617213@zju.edu.cn; 21816061@zju.edu.cn; demiwaiting@zju.edu.cn; 11616051@zju.edu.cn; 3140100306@zju.edu.cn; xcwang@zju.edu.cn

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