Biochar-based organic fertilizer application rates for Tetrastigma hemsleyanum planted under Moso bamboo
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ORIGINAL PAPER
Biochar-based organic fertilizer application rates for Tetrastigma hemsleyanum planted under Moso bamboo Xiaoping Zhang1,2 • Guibin Gao1,2,3 • Zhizhuang Wu1,2 • Xing Wen1,2,3 Fangyuan Bian1,2 • Chuanbao Yang1,2
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Received: 11 April 2018 / Accepted: 25 February 2019 The Author(s) 2019
Abstract The under-forest economy has received increased attention in China. However, little is known about the effects of co-composted biochar on soil and plant biomass in under-forest planting systems. In this study, plant biomass, soil nutrient levels, and bacterial communities were evaluated after application of biochar-based organic fertilizer (BOF, derived from co-composted biochar-compost) at varying rates to soils supporting Tetrastigma hemsleyanum Diels & Gilg planted under a Moso bamboo (Phyllostachys edulis) forest. BOF treatment increased the biomass of T. hemsleyanum. Compared with the control, BOF application significantly increased soil pH and organic carbon (SOC). The high-throughput sequencing results showed significant differences in the
Project funding: The work was supported by the Cooperation Projects Between Provincial Government and Scientific Research Institutes for Forestry Science and Technology in Zhejiang Province (Grant No. 2017SY02). The online version is available at http://www.springerlink.com Corresponding editor: Tao Xu & Zhizhuang Wu [email protected] 1
Key Laboratory of Resources and Utilization of Bamboo of State Forestry Administration, China National Bamboo Research Center, Hangzhou 310012, Zhejiang, People’s Republic of China
2
Key Laboratory of High Efficient Processing of Bamboo of Zhejiang Province, Hangzhou 310012, Zhejiang, People’s Republic of China
3
National Long-term Observation and Research Station for Forest Ecosystem in Hangzhou-Jiaxing-Huzhou Plain, Hangzhou 310012, Zhejiang, People’s Republic of China
Bacteroidetes, Verrucomicrobia, Chlorofexi, and OD1 phyla among all groups. At the genus level, the control group was characterized by a preponderance of Conexibacter. Rhodanobacter was enriched in soils with a 3% BOF application and Steroidobacter and Spirochaeta were the most prominent phyla in the 5% BOF group. There was no biomarker selected in the 1% BOF group at the genus level. In conclusion, BOF application increased the biomass of T. hemsleyanum when intercropped under a Moso bamboo forest; this effect may be due to changes in the soil physicochemical properties and microbial communities after BOF application. Keywords Co-composted biochar Under-forest economy Plant biomass Soil microbiota
Introduction Tetrastigma hemsleyanum Diels et Gilg, Vitaceae, is a herbaceous perennial climber species native to China. T. hemsleyanum is found in tropical to subtropical areas in Asia, mainly in the few provinces of south China, viz. Zhejiang, Jiangxi, Guangxi, and Hunan (Chinese Flora Commission 2007). The root tubers and whole herbs are used as raw materials in Chinese medicine for the treatment of high fever, infantile febrile convulsion, pneumonia, asthm
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