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Effects of Different Feedstock Type and Carbonization Temperature of Biochar on Oat Growth and Nitrogen Uptake in Coapplication with Compost

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Title: Effects of Different Feedstock Type and Carbonization Temperature of Biochar on Oat Growth and Nitrogen Uptake in Coapplication with Compost
Authors: Ochiai, Shoki Browse this author
Iwabuchi, Kazunori Browse this author →KAKEN DB
Itoh, Takanori Browse this author →ORCID
Watanabe, Toshihiro Browse this author
Osaki, Mitsuru Browse this author →KAKEN DB
Taniguro, Katsumori Browse this author
Keywords: Biomass
Feedstock type
Wood biochar
Dairy manure biochar
Carbonization temperature
Issue Date: Mar-2021
Publisher: Sociedad Chilena de la Ciencia del Suelo
Springer Nature
Journal Title: Journal of Soil Science and Plant Nutrition
Volume: 21
Start Page: 276
End Page: 285
Publisher DOI: 10.1007/s42729-020-00359-y
Abstract: Abstract: We aimed to verify whether (i) biochar-compost application improves plant growth when compared with compost application alone and (ii) a diversity of biochar caused by feedstock type and carbonization temperature affects the extent of plant growth. We prepared six types of biochar from larch (Larix kaempferi Sarg.) and dairy manure at 300 °C, 450 °C, and 600 °C for 1 h. Compost was applied as control, and each biochar was co-applied with compost to oat plants (Avena sativa L.). The total nitrogen input of all the seven treatments was adjusted to the same level to assess their effects on plant nitrogen uptake and nitrogen content. Compared with the control, biomass production increased from 13.1 to 34.0% with the wood biochar application and from 39.7 to 64.2% with manure biochar application because of more mineralization of compost and nitrogen fixation through rhizobacteria and/or diazotrophic endophytes. The diversity of biochar caused a difference in the extent of oat growth, and feedstock type of biochar was a more dominant factor than carbonization temperature. Due to the favorable chemical properties of manure biochar like high pH and more labile-C and -N content, the manure biochar application increased average biomass production by 26.0% compared with the wood biochar application. The carbonization temperature had no significant impact on oat growth, but the optimal temperature was indicated as approximately 450 °C. Biochar diversity causes a difference in plant growth in biochar-compost application, and the selection of appropriate biochar, such as manure biochar at 450 °C, would be a guideline for achieving a robust crop production system.
Rights: ©Sociedad Chilena de la Ciencia del Suelo 2020., This is a post-peer-review, pre-copyedit version of an article published in Journal of Soil Science and Plant Nutrition. The final authenticated version is available online at:
Type: article (author version)
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 伊藤 貴則

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