Plant uptake of nitrogen adsorbed to biochars made from dairy manure

Abstract The conversion of dairy waste with high moisture contents to dry fertilizers may reduce environmental degradation while lowering crop production costs. We converted the solid portion of screw-pressed dairy manure into a sorbent for volatile ammonia (NH3) in the liquid fraction using pyrolys...

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Autores principales:	Leilah Krounbi, Akio Enders, John Gaunt, Margaret Ball, Johannes Lehmann
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ab7b905ef39c4f3a82aed14cee29f007
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spelling	oai:doaj.org-article:ab7b905ef39c4f3a82aed14cee29f0072021-12-02T16:50:23ZPlant uptake of nitrogen adsorbed to biochars made from dairy manure10.1038/s41598-021-94337-82045-2322https://doaj.org/article/ab7b905ef39c4f3a82aed14cee29f0072021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94337-8https://doaj.org/toc/2045-2322Abstract The conversion of dairy waste with high moisture contents to dry fertilizers may reduce environmental degradation while lowering crop production costs. We converted the solid portion of screw-pressed dairy manure into a sorbent for volatile ammonia (NH3) in the liquid fraction using pyrolysis and pre-treatment with carbon dioxide (CO2). The extractable N in manure biochar exposed to NH3 following CO2 pre-treatment reached 3.36 g N kg−1, 1260-fold greater extractable N than in untreated manure biochar. Ammonia exposure was 142-times more effective in increasing extractable N than immersing manure biochar in the liquid fraction containing dissolved ammonium. Radish and tomato grown in horticultural media with manure biochar treated with CO2 + NH3 promoted up to 35% greater plant growth (dry weight) and 36–83% greater N uptake compared to manure biochar alone. Uptake of N was similar between plants grown with wood biochar exposed to CO2 + NH3, compared to N-equivalent treatments. The available N in dairy waste in New York (NY) state, if pyrolyzed and treated with NH3 + CO2, is equivalent to 11,732–42,232 Mg N year−1, valued at 6–21.5 million USD year−1. Separated dairy manure treated with CO2 + NH3 can offset 23–82% of N fertilizer needs of NY State, while stabilizing both the solid and liquid fraction of manure for reduced environmental pollution.Leilah KrounbiAkio EndersJohn GauntMargaret BallJohannes LehmannNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Leilah Krounbi Akio Enders John Gaunt Margaret Ball Johannes Lehmann Plant uptake of nitrogen adsorbed to biochars made from dairy manure
description	Abstract The conversion of dairy waste with high moisture contents to dry fertilizers may reduce environmental degradation while lowering crop production costs. We converted the solid portion of screw-pressed dairy manure into a sorbent for volatile ammonia (NH3) in the liquid fraction using pyrolysis and pre-treatment with carbon dioxide (CO2). The extractable N in manure biochar exposed to NH3 following CO2 pre-treatment reached 3.36 g N kg−1, 1260-fold greater extractable N than in untreated manure biochar. Ammonia exposure was 142-times more effective in increasing extractable N than immersing manure biochar in the liquid fraction containing dissolved ammonium. Radish and tomato grown in horticultural media with manure biochar treated with CO2 + NH3 promoted up to 35% greater plant growth (dry weight) and 36–83% greater N uptake compared to manure biochar alone. Uptake of N was similar between plants grown with wood biochar exposed to CO2 + NH3, compared to N-equivalent treatments. The available N in dairy waste in New York (NY) state, if pyrolyzed and treated with NH3 + CO2, is equivalent to 11,732–42,232 Mg N year−1, valued at 6–21.5 million USD year−1. Separated dairy manure treated with CO2 + NH3 can offset 23–82% of N fertilizer needs of NY State, while stabilizing both the solid and liquid fraction of manure for reduced environmental pollution.
format	article
author	Leilah Krounbi Akio Enders John Gaunt Margaret Ball Johannes Lehmann
author_facet	Leilah Krounbi Akio Enders John Gaunt Margaret Ball Johannes Lehmann
author_sort	Leilah Krounbi
title	Plant uptake of nitrogen adsorbed to biochars made from dairy manure
title_short	Plant uptake of nitrogen adsorbed to biochars made from dairy manure
title_full	Plant uptake of nitrogen adsorbed to biochars made from dairy manure
title_fullStr	Plant uptake of nitrogen adsorbed to biochars made from dairy manure
title_full_unstemmed	Plant uptake of nitrogen adsorbed to biochars made from dairy manure
title_sort	plant uptake of nitrogen adsorbed to biochars made from dairy manure
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/ab7b905ef39c4f3a82aed14cee29f007
work_keys_str_mv	AT leilahkrounbi plantuptakeofnitrogenadsorbedtobiocharsmadefromdairymanure AT akioenders plantuptakeofnitrogenadsorbedtobiocharsmadefromdairymanure AT johngaunt plantuptakeofnitrogenadsorbedtobiocharsmadefromdairymanure AT margaretball plantuptakeofnitrogenadsorbedtobiocharsmadefromdairymanure AT johanneslehmann plantuptakeofnitrogenadsorbedtobiocharsmadefromdairymanure
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Plant uptake of nitrogen adsorbed to biochars made from dairy manure

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