Can biochar increase the bioavailability of phosphorus?

A large proportion of phosphate (P) fertilizer applied to Andosols reacts with reactive aluminum (Al) and iron (Fe) to become unavailable for plant uptake. We investigated whether biochar could enhance plant growth by (i) mobilizing soil P through changing soil pH or facilitating the growth of arbus...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Shen,Q, Hedley,M, Camps Arbestain,M, Kirschbaum,M.U.F
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2016
Materias:	Arbuscular mycorrhizal fungi Andosols Biochar Lotus Phosphorus bioavailability Rhizosphere
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162016000200003
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-95162016000200003
record_format	dspace
spelling	oai:scielo:S0718-951620160002000032016-10-24Can biochar increase the bioavailability of phosphorus?Shen,QHedley,MCamps Arbestain,MKirschbaum,M.U.F Arbuscular mycorrhizal fungi Andosols Biochar Lotus Phosphorus bioavailability Rhizosphere A large proportion of phosphate (P) fertilizer applied to Andosols reacts with reactive aluminum (Al) and iron (Fe) to become unavailable for plant uptake. We investigated whether biochar could enhance plant growth by (i) mobilizing soil P through changing soil pH or facilitating the growth of arbuscular mycorrhizal fungi (AMF), and/or (ii) introducing additional P. We grew Lotus pedunculatus cv barsille in two Andosols of contrasting P status amended with three biochars (with distinct porosity, nutrient and liming properties) at a dose of 10 t ha-1 for 32 weeks. The growth medium was divided into a root and a hyphal zone through a nylon mesh and a tephra layer that allowed the P in the hyphal zone to be transferred only by AMF hyphae. The addition of a relative nutrient-rich biochar (e.g. made from willow woodchips) with liming properties to the root zone of the P-deficient soil increased plant growth by 59% and P uptake by 73%. Pine-based biochar provided no extra nutrient acquisition and no plant-growth stimulation when added to the root zone of the P-deficient soil. However,when hyphae of those plants had access to a P-rich soil patch, the presence of pine biochar in the soil patch greatly enhanced P uptake and plant growth (e.g., by 76% and 40% when using biochar produced at 450ºC compared to the absence of it). None of the tested biochars conferred advantages in the root zone of a high-P soil. We concluded that the benefits from biochar addition to nutrient uptake and plant growth are biochar- and soil-specific. Thus, biochars need to be tailored-made for certain soils by optimizing feedstock and pyrolysis conditions before application.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.16 n.2 20162016-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162016000200003en10.4067/S0718-95162016005000022
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Arbuscular mycorrhizal fungi Andosols Biochar Lotus Phosphorus bioavailability Rhizosphere
spellingShingle	Arbuscular mycorrhizal fungi Andosols Biochar Lotus Phosphorus bioavailability Rhizosphere Shen,Q Hedley,M Camps Arbestain,M Kirschbaum,M.U.F Can biochar increase the bioavailability of phosphorus?
description	A large proportion of phosphate (P) fertilizer applied to Andosols reacts with reactive aluminum (Al) and iron (Fe) to become unavailable for plant uptake. We investigated whether biochar could enhance plant growth by (i) mobilizing soil P through changing soil pH or facilitating the growth of arbuscular mycorrhizal fungi (AMF), and/or (ii) introducing additional P. We grew Lotus pedunculatus cv barsille in two Andosols of contrasting P status amended with three biochars (with distinct porosity, nutrient and liming properties) at a dose of 10 t ha-1 for 32 weeks. The growth medium was divided into a root and a hyphal zone through a nylon mesh and a tephra layer that allowed the P in the hyphal zone to be transferred only by AMF hyphae. The addition of a relative nutrient-rich biochar (e.g. made from willow woodchips) with liming properties to the root zone of the P-deficient soil increased plant growth by 59% and P uptake by 73%. Pine-based biochar provided no extra nutrient acquisition and no plant-growth stimulation when added to the root zone of the P-deficient soil. However,when hyphae of those plants had access to a P-rich soil patch, the presence of pine biochar in the soil patch greatly enhanced P uptake and plant growth (e.g., by 76% and 40% when using biochar produced at 450ºC compared to the absence of it). None of the tested biochars conferred advantages in the root zone of a high-P soil. We concluded that the benefits from biochar addition to nutrient uptake and plant growth are biochar- and soil-specific. Thus, biochars need to be tailored-made for certain soils by optimizing feedstock and pyrolysis conditions before application.
author	Shen,Q Hedley,M Camps Arbestain,M Kirschbaum,M.U.F
author_facet	Shen,Q Hedley,M Camps Arbestain,M Kirschbaum,M.U.F
author_sort	Shen,Q
title	Can biochar increase the bioavailability of phosphorus?
title_short	Can biochar increase the bioavailability of phosphorus?
title_full	Can biochar increase the bioavailability of phosphorus?
title_fullStr	Can biochar increase the bioavailability of phosphorus?
title_full_unstemmed	Can biochar increase the bioavailability of phosphorus?
title_sort	can biochar increase the bioavailability of phosphorus?
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162016000200003
work_keys_str_mv	AT shenq canbiocharincreasethebioavailabilityofphosphorus AT hedleym canbiocharincreasethebioavailabilityofphosphorus AT campsarbestainm canbiocharincreasethebioavailabilityofphosphorus AT kirschbaummuf canbiocharincreasethebioavailabilityofphosphorus
_version_	1714206534886490112

Can biochar increase the bioavailability of phosphorus?

Ejemplares similares