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Biochar derived from corn straw affected availability and distribution of soil nutrients and cotton yield

Biochar application as a soil amendment has been proposed as a strategy to improve soil fertility and increase crop yields. However, the effects of successive biochar applications on cotton yields and nutrient distribution in soil are not well documented. A three-year field study was conducted to in...

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Autores principales: Tian, Xiaofei, Li, Chengliang, Zhang, Min, Wan, Yongshan, Xie, Zhihua, Chen, Baocheng, Li, Wenqing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5764240/
https://www.ncbi.nlm.nih.gov/pubmed/29324750
http://dx.doi.org/10.1371/journal.pone.0189924
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author Tian, Xiaofei
Li, Chengliang
Zhang, Min
Wan, Yongshan
Xie, Zhihua
Chen, Baocheng
Li, Wenqing
author_facet Tian, Xiaofei
Li, Chengliang
Zhang, Min
Wan, Yongshan
Xie, Zhihua
Chen, Baocheng
Li, Wenqing
author_sort Tian, Xiaofei
collection PubMed
description Biochar application as a soil amendment has been proposed as a strategy to improve soil fertility and increase crop yields. However, the effects of successive biochar applications on cotton yields and nutrient distribution in soil are not well documented. A three-year field study was conducted to investigate the effects of successive biochar applications at different rates on cotton yield and on the soil nutrient distribution in the 0–100 cm soil profile. Biochar was applied at 0, 5, 10, and 20 t ha(-1) (expressed as Control, BC5, BC10, and BC20, respectively) for each cotton season, with identical doses of chemical fertilizers. Biochar enhanced the cotton lint yield by 8.0–15.8%, 9.3–13.9%, and 9.2–21.9% in 2013, 2014, and 2015, respectively, and high levels of biochar application achieved high cotton yields each year. Leaching of soil nitrate was reduced, while the pH values, soil organic carbon, total nitrogen (N), and available K content of the 0–20 cm soil layer were increased in 2014 and 2015. However, the changes in the soil available P content were less substantial. This study suggests that successive biochar amendments have the potential to enhance cotton productivity and soil fertility while reducing nitrate leaching.
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spelling pubmed-57642402018-01-23 Biochar derived from corn straw affected availability and distribution of soil nutrients and cotton yield Tian, Xiaofei Li, Chengliang Zhang, Min Wan, Yongshan Xie, Zhihua Chen, Baocheng Li, Wenqing PLoS One Research Article Biochar application as a soil amendment has been proposed as a strategy to improve soil fertility and increase crop yields. However, the effects of successive biochar applications on cotton yields and nutrient distribution in soil are not well documented. A three-year field study was conducted to investigate the effects of successive biochar applications at different rates on cotton yield and on the soil nutrient distribution in the 0–100 cm soil profile. Biochar was applied at 0, 5, 10, and 20 t ha(-1) (expressed as Control, BC5, BC10, and BC20, respectively) for each cotton season, with identical doses of chemical fertilizers. Biochar enhanced the cotton lint yield by 8.0–15.8%, 9.3–13.9%, and 9.2–21.9% in 2013, 2014, and 2015, respectively, and high levels of biochar application achieved high cotton yields each year. Leaching of soil nitrate was reduced, while the pH values, soil organic carbon, total nitrogen (N), and available K content of the 0–20 cm soil layer were increased in 2014 and 2015. However, the changes in the soil available P content were less substantial. This study suggests that successive biochar amendments have the potential to enhance cotton productivity and soil fertility while reducing nitrate leaching. Public Library of Science 2018-01-11 /pmc/articles/PMC5764240/ /pubmed/29324750 http://dx.doi.org/10.1371/journal.pone.0189924 Text en © 2018 Tian et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Tian, Xiaofei
Li, Chengliang
Zhang, Min
Wan, Yongshan
Xie, Zhihua
Chen, Baocheng
Li, Wenqing
Biochar derived from corn straw affected availability and distribution of soil nutrients and cotton yield
title Biochar derived from corn straw affected availability and distribution of soil nutrients and cotton yield
title_full Biochar derived from corn straw affected availability and distribution of soil nutrients and cotton yield
title_fullStr Biochar derived from corn straw affected availability and distribution of soil nutrients and cotton yield
title_full_unstemmed Biochar derived from corn straw affected availability and distribution of soil nutrients and cotton yield
title_short Biochar derived from corn straw affected availability and distribution of soil nutrients and cotton yield
title_sort biochar derived from corn straw affected availability and distribution of soil nutrients and cotton yield
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5764240/
https://www.ncbi.nlm.nih.gov/pubmed/29324750
http://dx.doi.org/10.1371/journal.pone.0189924
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