Optimum biochar preparations enhance phosphorus availability in amended Mollisols of Northeast China

ABSTRACT Biochar amendment to soils can improve soil P availability, but details on the optimum application of biochar to black soils in Northeast China are limited. Three types of biochar were produced at six pyrolysis temperatures (between 200 and 700 °C) and then added to black soil samples. P ad...

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Autores principales:	Han,Ying, Chen,Xiangwei, Wang,Enheng, Xia,Xiangyou
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2019
Materias:	Batch equilibrium method biochar amendment black soil feedstock type pyrolysis temperature phosphorus adsorption and desorption.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000100153
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spelling	oai:scielo:S0718-583920190001001532019-02-19Optimum biochar preparations enhance phosphorus availability in amended Mollisols of Northeast ChinaHan,YingChen,XiangweiWang,EnhengXia,Xiangyou Batch equilibrium method biochar amendment black soil feedstock type pyrolysis temperature phosphorus adsorption and desorption. ABSTRACT Biochar amendment to soils can improve soil P availability, but details on the optimum application of biochar to black soils in Northeast China are limited. Three types of biochar were produced at six pyrolysis temperatures (between 200 and 700 °C) and then added to black soil samples. P adsorption-desorption isotherms were fitted by the Langmuir model to evaluate the changes in soil P adsorption-desorption after biochar amendment. Changes in P adsorption and desorption depended on biochar feedstock type and pyrolysis temperature. When pyrolysis temperature increased up to 400 °C, P sorption maximum (Qm) of soybean pod (SP) and soybean straw (SS) biochar-amended soils were enhanced from 855.65 and 428.84 mg kg-1 to 1666.67 and 1547.62 mg kg-1, respectively, while a further increase in the pyrolysis temperature lowered the adsorption capacity. However, P adsorption of corncob (CC) biochar amended soils declined from 1428.57 mg kg-1 to 556.70 mg kg-1 as pyrolysis temperature increased. Higher P desorption in SP and SS compared with CC indicated that SP and SS biochar produced at higher than 400 °C pyrolysis temperatures were considered to be the optimum biochar to enhance P availability in the black soils of Northeast China.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.79 n.1 20192019-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000100153en10.4067/S0718-58392019000100153
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Batch equilibrium method biochar amendment black soil feedstock type pyrolysis temperature phosphorus adsorption and desorption.
spellingShingle	Batch equilibrium method biochar amendment black soil feedstock type pyrolysis temperature phosphorus adsorption and desorption. Han,Ying Chen,Xiangwei Wang,Enheng Xia,Xiangyou Optimum biochar preparations enhance phosphorus availability in amended Mollisols of Northeast China
description	ABSTRACT Biochar amendment to soils can improve soil P availability, but details on the optimum application of biochar to black soils in Northeast China are limited. Three types of biochar were produced at six pyrolysis temperatures (between 200 and 700 °C) and then added to black soil samples. P adsorption-desorption isotherms were fitted by the Langmuir model to evaluate the changes in soil P adsorption-desorption after biochar amendment. Changes in P adsorption and desorption depended on biochar feedstock type and pyrolysis temperature. When pyrolysis temperature increased up to 400 °C, P sorption maximum (Qm) of soybean pod (SP) and soybean straw (SS) biochar-amended soils were enhanced from 855.65 and 428.84 mg kg-1 to 1666.67 and 1547.62 mg kg-1, respectively, while a further increase in the pyrolysis temperature lowered the adsorption capacity. However, P adsorption of corncob (CC) biochar amended soils declined from 1428.57 mg kg-1 to 556.70 mg kg-1 as pyrolysis temperature increased. Higher P desorption in SP and SS compared with CC indicated that SP and SS biochar produced at higher than 400 °C pyrolysis temperatures were considered to be the optimum biochar to enhance P availability in the black soils of Northeast China.
author	Han,Ying Chen,Xiangwei Wang,Enheng Xia,Xiangyou
author_facet	Han,Ying Chen,Xiangwei Wang,Enheng Xia,Xiangyou
author_sort	Han,Ying
title	Optimum biochar preparations enhance phosphorus availability in amended Mollisols of Northeast China
title_short	Optimum biochar preparations enhance phosphorus availability in amended Mollisols of Northeast China
title_full	Optimum biochar preparations enhance phosphorus availability in amended Mollisols of Northeast China
title_fullStr	Optimum biochar preparations enhance phosphorus availability in amended Mollisols of Northeast China
title_full_unstemmed	Optimum biochar preparations enhance phosphorus availability in amended Mollisols of Northeast China
title_sort	optimum biochar preparations enhance phosphorus availability in amended mollisols of northeast china
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000100153
work_keys_str_mv	AT hanying optimumbiocharpreparationsenhancephosphorusavailabilityinamendedmollisolsofnortheastchina AT chenxiangwei optimumbiocharpreparationsenhancephosphorusavailabilityinamendedmollisolsofnortheastchina AT wangenheng optimumbiocharpreparationsenhancephosphorusavailabilityinamendedmollisolsofnortheastchina AT xiaxiangyou optimumbiocharpreparationsenhancephosphorusavailabilityinamendedmollisolsofnortheastchina
_version_	1714205386421043200

Optimum biochar preparations enhance phosphorus availability in amended Mollisols of Northeast China

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