Journal ArticleDOI
Three years of biochar amendment alters soil physiochemical properties and fungal community composition in a black soil of northeast China
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TLDR
In this paper, the authors investigated the long-term effects of biochar as a soil amendment in a black soil of northeast China over the long term and found that the changes in these soil characteristics were highly correlated with the amounts of Biochar addition, suggesting that the impacts of longterm biochar amendment on the soil fungal community occurred indirectly as a result of the alteration of soil physiochemical properties.Abstract:
Although biochar amendment has been extensively evaluated as a promising strategy to improve soil quality, most evaluations have been conducted in the laboratory or under short-term field conditions, which restricted us to understand the long-term effects of biochar as a soil amendment. As the residence time of biochar in soils is expected to be hundreds to thousands of years, this study focused on revealing whether biochar addition influences soil physiochemical properties and fungal community composition in a black soil of northeast China over the long term. Biochar was added to the micro-plots at 0%, 2%, 4%, and 8% of the total mass of the top 20 cm of the soil in the spring of 2012, and soil samples were collected seasonally four times in 2014. The results indicate that soil pH, moisture, total C, total N, total P, NO 3 − -N, available K and the C/N ratio significantly increased but soil bulk density and total K content decreased with biochar addition. The soil fungal abundance determined using quantitative real-time PCR showed that the number of fungal ITS gene copies increased with biochar addition. The soil fungal community composition determined using the Illumina MiSeq sequencing method showed that community diversity was not influenced by biochar addition but the community composition was influenced. The impact of biochar on changes in community composition was not reflected at the phylum level, but at the genus and operational taxonomic units (OTU) levels. The relative abundance of Fusarium decreased, but Guehomyces increased with biochar addition over the first three sampling dates. The relative abundances of several OTUs classified as potential crop pathogens decreased with biochar addition, suggesting that biochar amendment may be beneficial in terms of suppressing the occurrence of crop disease over the long term. In addition, canonical correspondence analysis indicated that fungal community composition was associated with soil parameters such as pH, soil moisture, total C, total N, total K and available K. The changes in these soil characteristics were highly correlated with the amounts of biochar addition, suggesting that the impacts of long-term biochar amendment on the soil fungal community occurred indirectly as a result of the alteration of soil physiochemical properties.read more
Citations
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Journal ArticleDOI
Optimum biochar preparations enhance phosphorus availability in amended Mollisols of Northeast China
TL;DR: In this article, three types of biochar were produced at six pyrolysis temperatures (between 200 and 700 °C) and then added to black soil samples to evaluate the changes in soil P adsorption-desorption after biochar amendment.
Book ChapterDOI
Biochar: A Vital Source for Sustainable Agriculture
Kanayo Stephen Chukwuka,A. O. Akanmu,Barachel Odaro-Junior Umukoro,Micheal Dare Asemoloye,Adegboyega Christopher Odebode +4 more
TL;DR: In this article, the authors reviewed the contributions of biochar technology to environmental sustainability and food security in sub-Saharan Africa and highlighted the negative impact of non-sustainability of agricultural and soil management practices threatening food security and environmental safety.
Journal ArticleDOI
Effects of biochar on the diversity and community structure of soil fungi in intercropping system
TL;DR: Investigation of the long-term effects of biochar application on the diversity and community structure of soil fungi showed that biocharApplication has a significant effect on soil physicochemical properties after 3 years of application.
Journal ArticleDOI
Effect of combining straw-derived materials and wood ash on alkaline soil carbon content and the microbial community
Journal ArticleDOI
Effects of short-term application of Moutai lees biochar on nutrients and fungal community structure in yellow soil of Guizhou
TL;DR: In this paper, a field experiment was carried out to study the effects of short-term application of Moutai lees biochar on nutrients and fungal community structure diversity of yellow soil.
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