LIVESTOCK PRODUCTION AND DIFFUSE POLLUTION IN A VOLCANIC SOIL

In developed countries, intensive grazing has been related to water pollution. The results of several projects carried out on a volcanic soil of the Osorno soil series on beef grazing production systems have shown that grazing management did not increase total nitrogen (N) and phosphorus (P) transfe...

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Autores principales:	Alfaro,Marta, Salazar,Francisco
Lenguaje:	English
Publicado:	Sociedad Chilena de la Ciencia del Suelo 2008
Materias:	Nitrogen phosphorus dairy production beef production environmental impact
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912008000200002
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spelling	oai:scielo:S0718-279120080002000022009-12-23LIVESTOCK PRODUCTION AND DIFFUSE POLLUTION IN A VOLCANIC SOILAlfaro,MartaSalazar,Francisco Nitrogen phosphorus dairy production beef production environmental impact In developed countries, intensive grazing has been related to water pollution. The results of several projects carried out on a volcanic soil of the Osorno soil series on beef grazing production systems have shown that grazing management did not increase total nitrogen (N) and phosphorus (P) transfer and losses. Due to the high water infiltration capacity of the soil, runoff was <1% of total drainage, therefore, N and P losses in runoff were small. Nitrogen leaching losses were high (3 up to 71 kg N ha-1 yr-1). Nitrogen loss in runoff was mainly lost as DON (c. 50%) while N leaching losses were mainly as nitrate (c. 70%). Total P losses ranged between 1 and 22 g P ha-1 yr-1 and they increased with increasing field slopes. Phosphorus was mainly lost as reactive P (c. 70%). Total losses were greatly affected by incidental N and P losses associated to spring N and P fertilizer application, so that grassland managements should consider this constrain for grazed areas in southern Chile. Research should be carried out in more intensive production systems (e.g. dairy farms) where N and P rates used are higher and applied during different times of the year, with a potential impact for the wider environment.info:eu-repo/semantics/openAccessSociedad Chilena de la Ciencia del SueloRevista de la ciencia del suelo y nutrición vegetal v.8 n.2 20082008-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912008000200002en10.4067/S0718-27912008000200002
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Nitrogen phosphorus dairy production beef production environmental impact
spellingShingle	Nitrogen phosphorus dairy production beef production environmental impact Alfaro,Marta Salazar,Francisco LIVESTOCK PRODUCTION AND DIFFUSE POLLUTION IN A VOLCANIC SOIL
description	In developed countries, intensive grazing has been related to water pollution. The results of several projects carried out on a volcanic soil of the Osorno soil series on beef grazing production systems have shown that grazing management did not increase total nitrogen (N) and phosphorus (P) transfer and losses. Due to the high water infiltration capacity of the soil, runoff was <1% of total drainage, therefore, N and P losses in runoff were small. Nitrogen leaching losses were high (3 up to 71 kg N ha-1 yr-1). Nitrogen loss in runoff was mainly lost as DON (c. 50%) while N leaching losses were mainly as nitrate (c. 70%). Total P losses ranged between 1 and 22 g P ha-1 yr-1 and they increased with increasing field slopes. Phosphorus was mainly lost as reactive P (c. 70%). Total losses were greatly affected by incidental N and P losses associated to spring N and P fertilizer application, so that grassland managements should consider this constrain for grazed areas in southern Chile. Research should be carried out in more intensive production systems (e.g. dairy farms) where N and P rates used are higher and applied during different times of the year, with a potential impact for the wider environment.
author	Alfaro,Marta Salazar,Francisco
author_facet	Alfaro,Marta Salazar,Francisco
author_sort	Alfaro,Marta
title	LIVESTOCK PRODUCTION AND DIFFUSE POLLUTION IN A VOLCANIC SOIL
title_short	LIVESTOCK PRODUCTION AND DIFFUSE POLLUTION IN A VOLCANIC SOIL
title_full	LIVESTOCK PRODUCTION AND DIFFUSE POLLUTION IN A VOLCANIC SOIL
title_fullStr	LIVESTOCK PRODUCTION AND DIFFUSE POLLUTION IN A VOLCANIC SOIL
title_full_unstemmed	LIVESTOCK PRODUCTION AND DIFFUSE POLLUTION IN A VOLCANIC SOIL
title_sort	livestock production and diffuse pollution in a volcanic soil
publisher	Sociedad Chilena de la Ciencia del Suelo
publishDate	2008
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912008000200002
work_keys_str_mv	AT alfaromarta livestockproductionanddiffusepollutioninavolcanicsoil AT salazarfrancisco livestockproductionanddiffusepollutioninavolcanicsoil
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LIVESTOCK PRODUCTION AND DIFFUSE POLLUTION IN A VOLCANIC SOIL

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