Effects of solid oxygen fertilizers and biochars on nitrous oxide production from agricultural soils in Florida

Abstract Elevated levels of nitrous oxide (N2O) emissions are a matter of concern in agricultural soils especially when flooding (hypoxic conditions) results from over irrigation or frequent rains. This study is the first to report the use of two solid oxygen fertilizers (SOFs, calcium peroxide and...

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Autores principales:	Tanumoy Bera, Kanika S. Inglett, Guodong D. Liu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f642df11abc24f2e884045d017f1e4c5
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spelling	oai:doaj.org-article:f642df11abc24f2e884045d017f1e4c52021-12-02T16:18:02ZEffects of solid oxygen fertilizers and biochars on nitrous oxide production from agricultural soils in Florida10.1038/s41598-020-78198-12045-2322https://doaj.org/article/f642df11abc24f2e884045d017f1e4c52020-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-78198-1https://doaj.org/toc/2045-2322Abstract Elevated levels of nitrous oxide (N2O) emissions are a matter of concern in agricultural soils especially when flooding (hypoxic conditions) results from over irrigation or frequent rains. This study is the first to report the use of two solid oxygen fertilizers (SOFs, calcium peroxide and magnesium peroxide) to reduce N2O production in mineral and organic soils amended with N fertilizer in a short-term laboratory incubation besides two biochars. In general, organic soil had greater N2O production than mineral soil. Soils amended with nitrogen fertilizer exhibited increased N2O production, by 74 times in mineral soil and 2 times in organic soil. Both solid oxygen fertilizers in mineral soil (98–99%) and calcium peroxide in organic soil (25%) successfully reduced N2O production than corresponding N fertilized treatments. Additionally, a greater level of available nitrate–N (52–57 and 225 mg kg−1 in mineral and organic soil, respectively) was recorded with the solid oxygen fertilizers. Corn residue biochar with N fertilizer increased N2O production in mineral soil but decreased in organic soil, while pine bark biochar with N did not affect the N2O production in either soil. Depending on soil, appropriate SOFs applied were able to reduce N2O production and maintain greater nitrate–N levels in flooded soil. Thus, solid oxygen fertilizers can potentially be used as an effective way to reduce N2O emission from hypoxic soil in agricultural production systems.Tanumoy BeraKanika S. InglettGuodong D. LiuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-12 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Tanumoy Bera Kanika S. Inglett Guodong D. Liu Effects of solid oxygen fertilizers and biochars on nitrous oxide production from agricultural soils in Florida
description	Abstract Elevated levels of nitrous oxide (N2O) emissions are a matter of concern in agricultural soils especially when flooding (hypoxic conditions) results from over irrigation or frequent rains. This study is the first to report the use of two solid oxygen fertilizers (SOFs, calcium peroxide and magnesium peroxide) to reduce N2O production in mineral and organic soils amended with N fertilizer in a short-term laboratory incubation besides two biochars. In general, organic soil had greater N2O production than mineral soil. Soils amended with nitrogen fertilizer exhibited increased N2O production, by 74 times in mineral soil and 2 times in organic soil. Both solid oxygen fertilizers in mineral soil (98–99%) and calcium peroxide in organic soil (25%) successfully reduced N2O production than corresponding N fertilized treatments. Additionally, a greater level of available nitrate–N (52–57 and 225 mg kg−1 in mineral and organic soil, respectively) was recorded with the solid oxygen fertilizers. Corn residue biochar with N fertilizer increased N2O production in mineral soil but decreased in organic soil, while pine bark biochar with N did not affect the N2O production in either soil. Depending on soil, appropriate SOFs applied were able to reduce N2O production and maintain greater nitrate–N levels in flooded soil. Thus, solid oxygen fertilizers can potentially be used as an effective way to reduce N2O emission from hypoxic soil in agricultural production systems.
format	article
author	Tanumoy Bera Kanika S. Inglett Guodong D. Liu
author_facet	Tanumoy Bera Kanika S. Inglett Guodong D. Liu
author_sort	Tanumoy Bera
title	Effects of solid oxygen fertilizers and biochars on nitrous oxide production from agricultural soils in Florida
title_short	Effects of solid oxygen fertilizers and biochars on nitrous oxide production from agricultural soils in Florida
title_full	Effects of solid oxygen fertilizers and biochars on nitrous oxide production from agricultural soils in Florida
title_fullStr	Effects of solid oxygen fertilizers and biochars on nitrous oxide production from agricultural soils in Florida
title_full_unstemmed	Effects of solid oxygen fertilizers and biochars on nitrous oxide production from agricultural soils in Florida
title_sort	effects of solid oxygen fertilizers and biochars on nitrous oxide production from agricultural soils in florida
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/f642df11abc24f2e884045d017f1e4c5
work_keys_str_mv	AT tanumoybera effectsofsolidoxygenfertilizersandbiocharsonnitrousoxideproductionfromagriculturalsoilsinflorida AT kanikasinglett effectsofsolidoxygenfertilizersandbiocharsonnitrousoxideproductionfromagriculturalsoilsinflorida AT guodongdliu effectsofsolidoxygenfertilizersandbiocharsonnitrousoxideproductionfromagriculturalsoilsinflorida
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Effects of solid oxygen fertilizers and biochars on nitrous oxide production from agricultural soils in Florida

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