Microbial activity was greater in soils added with herb residue vermicompost than chemical fertilizer
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https://doi.org/10.1007/s42832-020-0034-6
RESEARCH ARTICLE
Microbial activity was greater in soils added with herb residue vermicompost than chemical fertilizer Meirong Lv1,2, Jingjuan Li1,3, Weixin Zhang4, Bo Zhou1,5, Jun Dai1 ,*, Chi Zhang1 ,* 1 The College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510650, China 2 Institute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences), Shandong Provincial Key Laboratory of Marine Monitoring Instrument Equipment Technology, National Engineering and Technological Research Center of Marine Monitoring Equipment, Qingdao 260000, China 3 Agricultural Technology Promotion Center of Huicheng District, Huizhou 516008, China 4 Key Laboratory of Geospatial Technology for Middle and Lower Yellow River Regions, Ministry of Education; College of Environment and Planning, Henan University, Kaifeng 475004, China 5 Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510650, China
ARTICLE INFO
ABSTRACT
Article history:
Herb residue vermicompost is thought to have high agriculture value, while its effects on soil
Received December 31, 2019
microbial activities have not been fully understood. Here, soil microbial biomass, respiration
Revised March 13, 2020 Accepted April 9, 2020
and enzyme activities in soil planted with maize were compared among treatments amended with herb residue vermicompost at rates of 25, 50, 75 and 100 g kg – 1, chemical NPK fertilizer and no fertilizer (the control). Our results showed that soil microbial biomass carbon,
Keywords:
respiration, and alkaline phosphatase, urease, and invertase activities were greater in soil
Soil
amended with herb residue vermicompost than the unfertilized control (P < 0.05). Compared
Herb residue vermicompost
with chemical fertilizer, herb residue vermicompost increased soil urease and alkaline
Microbial biomass
phosphatase activities at each application rate, promoted soil respiration and microbial
Respiration
biomass carbon at the application rates of 50, 75 and 100 g kg
Enzyme activity
activity at the application rates of 75 and 100 g kg
–1
–1
, and increased soil inverse
. In conclusion, herb residue vermicompost
supported greater soil microbial biomass, respiration and enzyme activities than conventional NPK fertilizer, and the effect was larger when higher rates of herb residue vermicompost were added. © Higher Education Press 2020
1 Introduction Herb residue is a major form of solid organic waste, consisting of the leftover waste of plant material that has undergone decoction. Great amount of herb residue is produced worldwide, especially in Asian countries. For example, approxi-
* Corresponding authors E-mail address: [email protected] (J. Dai); [email protected] (C. Zhang)
mately 1.5 million tons are generated annually in China (Wang et al., 2010). The traditional landfill treatment of herb residue causes serious environmental problems, such as underwater pollution and the release of od
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