Effect of sewage sludge and sawdust in association with hybrid ryegrass (Lolium x hybrydum Hausskin.) on soil macroaggregates and water content

Chilean soils degradation is a serious problem affecting directly the productivity of most of the crops. Some evidence indicates sewage sludge can improve soil physical properties, especially when combined with sawdust. The objective of this work was to evaluate the effect of different mixtures of s...

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Autores principales:	Sandoval E,Marco, Celis H,José, Bahamondes P,Carlos
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2012
Materias:	Soil aggregation biosolids remediation organic wastes degraded soil
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000400017
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spelling	oai:scielo:S0718-583920120004000172018-10-01Effect of sewage sludge and sawdust in association with hybrid ryegrass (Lolium x hybrydum Hausskin.) on soil macroaggregates and water contentSandoval E,MarcoCelis H,JoséBahamondes P,Carlos Soil aggregation biosolids remediation organic wastes degraded soil Chilean soils degradation is a serious problem affecting directly the productivity of most of the crops. Some evidence indicates sewage sludge can improve soil physical properties, especially when combined with sawdust. The objective of this work was to evaluate the effect of different mixtures of sewage sludge (LU) and sawdust (RA) on water-stable aggregates and available water content of a degraded Alfisol cropped with hybrid ryegrass (Lolium x hybridum Hausskn.), under greenhouse conditions. The experimental design was a completely randomized with a factorial arrangement of 2 x 9 (ryegrass x rates of sludge and sawdust). Treatments were 25 and 50 Mg LU ha-1 mixed with 10, 25, and 50 Mg RA ha-1. Ratio mixtures of LU/RA were set in pots with hybrid ryegrass. Soil available water content (AW), percentage of macroaggregates (MA) and water-stable aggregates (AWD) were evaluated. Ryegrass aboveground biomass was also measured. Mixtures of LU/RA amended to the soil increased MA and AWD, an effect that was most evident at 50 Mg ha-1. The AW value was greater when LU was amended to 50 Mg ha-1 mixed with RA at doses of 10, 25, and 50 Mg ha-1. There was greater aboveground biomass of hybrid ryegrass, directly related to increasing doses of LU and RA in the mixtures. The addition to soil of both organic residues combined, LU and RA, improved the physical parameters studied, especially in the presence of hybrid ryegrass.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.72 n.4 20122012-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000400017en10.4067/S0718-58392012000400017
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Soil aggregation biosolids remediation organic wastes degraded soil
spellingShingle	Soil aggregation biosolids remediation organic wastes degraded soil Sandoval E,Marco Celis H,José Bahamondes P,Carlos Effect of sewage sludge and sawdust in association with hybrid ryegrass (Lolium x hybrydum Hausskin.) on soil macroaggregates and water content
description	Chilean soils degradation is a serious problem affecting directly the productivity of most of the crops. Some evidence indicates sewage sludge can improve soil physical properties, especially when combined with sawdust. The objective of this work was to evaluate the effect of different mixtures of sewage sludge (LU) and sawdust (RA) on water-stable aggregates and available water content of a degraded Alfisol cropped with hybrid ryegrass (Lolium x hybridum Hausskn.), under greenhouse conditions. The experimental design was a completely randomized with a factorial arrangement of 2 x 9 (ryegrass x rates of sludge and sawdust). Treatments were 25 and 50 Mg LU ha-1 mixed with 10, 25, and 50 Mg RA ha-1. Ratio mixtures of LU/RA were set in pots with hybrid ryegrass. Soil available water content (AW), percentage of macroaggregates (MA) and water-stable aggregates (AWD) were evaluated. Ryegrass aboveground biomass was also measured. Mixtures of LU/RA amended to the soil increased MA and AWD, an effect that was most evident at 50 Mg ha-1. The AW value was greater when LU was amended to 50 Mg ha-1 mixed with RA at doses of 10, 25, and 50 Mg ha-1. There was greater aboveground biomass of hybrid ryegrass, directly related to increasing doses of LU and RA in the mixtures. The addition to soil of both organic residues combined, LU and RA, improved the physical parameters studied, especially in the presence of hybrid ryegrass.
author	Sandoval E,Marco Celis H,José Bahamondes P,Carlos
author_facet	Sandoval E,Marco Celis H,José Bahamondes P,Carlos
author_sort	Sandoval E,Marco
title	Effect of sewage sludge and sawdust in association with hybrid ryegrass (Lolium x hybrydum Hausskin.) on soil macroaggregates and water content
title_short	Effect of sewage sludge and sawdust in association with hybrid ryegrass (Lolium x hybrydum Hausskin.) on soil macroaggregates and water content
title_full	Effect of sewage sludge and sawdust in association with hybrid ryegrass (Lolium x hybrydum Hausskin.) on soil macroaggregates and water content
title_fullStr	Effect of sewage sludge and sawdust in association with hybrid ryegrass (Lolium x hybrydum Hausskin.) on soil macroaggregates and water content
title_full_unstemmed	Effect of sewage sludge and sawdust in association with hybrid ryegrass (Lolium x hybrydum Hausskin.) on soil macroaggregates and water content
title_sort	effect of sewage sludge and sawdust in association with hybrid ryegrass (lolium x hybrydum hausskin.) on soil macroaggregates and water content
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000400017
work_keys_str_mv	AT sandovalemarco effectofsewagesludgeandsawdustinassociationwithhybridryegrassloliumxhybrydumhausskinonsoilmacroaggregatesandwatercontent AT celishjose effectofsewagesludgeandsawdustinassociationwithhybridryegrassloliumxhybrydumhausskinonsoilmacroaggregatesandwatercontent AT bahamondespcarlos effectofsewagesludgeandsawdustinassociationwithhybridryegrassloliumxhybrydumhausskinonsoilmacroaggregatesandwatercontent
_version_	1714205318685130752

Effect of sewage sludge and sawdust in association with hybrid ryegrass (Lolium x hybrydum Hausskin.) on soil macroaggregates and water content

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