Impact of pig slurry on soil properties, water salinization, nitrate leaching and crop yield in a four-year experiment in Central Spain

Impact of pig slurry on soil properties, water salinization, nitrate leaching and crop yield in a four-year experiment in Central Spain

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7 pages, figures, and tables statistics.

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Main Authors: Díez López, José Antonio, Hernáiz, Pedro J., Muñoz, M. J., Torre, A. de la, Vallejo, Antonio
Format: artículo biblioteca
Language:English
Published: British Society of Soil Science 2004
Subjects:Irrigation, Leaching, Maize, Nitrate, Pig slurry, Soil salinity, Aquifer pollution,
Online Access:http://hdl.handle.net/10261/28776
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spelling dig-ica-es-10261-287762016-02-16T08:21:58Z Impact of pig slurry on soil properties, water salinization, nitrate leaching and crop yield in a four-year experiment in Central Spain Díez López, José Antonio Hernáiz, Pedro J. Muñoz, M. J. Torre, A. de la Vallejo, Antonio Irrigation Leaching Maize Nitrate Pig slurry Soil salinity Aquifer pollution 7 pages, figures, and tables statistics. The repeated application of pig slurry to agricultural soils may result in an accumulation of salts and a risk of aquifer pollution due to nitrate leaching and salinization. Under Mediterranean conditions, a field experiment on a sandy loam soil (Typic Xerofluvent) was performed with maize (Zea mays) in 1998, 1999 and 2001 to study the effects of applying optimal (P1) and excessive rates (P3) of pig slurry on soil salinization, nitrate leaching and groundwater pollution. The rate of pig slurry was established considering the optimal N rate for maize in this soil (170, 162 and 176 kgNha21 for 1998, 1999 and 2001, respectively). Pig slurry treatments were compared to an optimal N rate supplied as urea (U) and a control treatment without N fertilizer (P0). The composition of the slurries showed great variability between years. Mean NO3 2 leaching losses from 1998 to 2001 were 329, 215, 173 and 78 kgNha21 for P3, P1, U and P0 treatments, respectively. The amount of total dissolved salts (TDS) added to the soil in slurry application between 1998 and 2001 was 2019 kgTDSha21 for the P1 treatment and 6058 kgTDSha21 for the P3 treatment. As a consequence, the electrical conductivity (EC) of the slurry-treated soils was greater than that of the control soil. The EC correlated significantly with the sodium concentration of the soil solution. Over the entire experimental period, 2653, 2202 and 2110 kg Na ha21 entered the aquifer from the P3, P1 and P0 treatments, respectively. The P3 treatment did not significantly increase grain production in 1999 and 2001 compared with that achieved with the optimal N rate treatment (P1). This behaviour shows the importance of establishing application guidelines for pig slurry that will reduce the risk of soil and groundwater pollution. This work was funded by the INIA (Spanish Ministry of Agriculture, Fisheries and Food Resources) for funding via Project SC 98-C2.2. We thank M.D. Atienza for technical assisstance. Peer reviewed 2010-10-28T09:58:06Z 2010-10-28T09:58:06Z 2004 artículo http://purl.org/coar/resource_type/c_6501 Soil Use and Management 20:444-450 (2004) 0266-0032 http://hdl.handle.net/10261/28776 10.1079/SUM2004283 en http://dx.doi.org/10.1079/SUM2004283 open British Society of Soil Science
institution ICA ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-ica-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICA España
language English
topic Irrigation
Leaching
Maize
Nitrate
Pig slurry
Soil salinity
Aquifer pollution
Irrigation
Leaching
Maize
Nitrate
Pig slurry
Soil salinity
Aquifer pollution
spellingShingle Irrigation
Leaching
Maize
Nitrate
Pig slurry
Soil salinity
Aquifer pollution
Irrigation
Leaching
Maize
Nitrate
Pig slurry
Soil salinity
Aquifer pollution
Díez López, José Antonio
Hernáiz, Pedro J.
Muñoz, M. J.
Torre, A. de la
Vallejo, Antonio
Impact of pig slurry on soil properties, water salinization, nitrate leaching and crop yield in a four-year experiment in Central Spain
description 7 pages, figures, and tables statistics.
format artículo
topic_facet Irrigation
Leaching
Maize
Nitrate
Pig slurry
Soil salinity
Aquifer pollution
author Díez López, José Antonio
Hernáiz, Pedro J.
Muñoz, M. J.
Torre, A. de la
Vallejo, Antonio
author_facet Díez López, José Antonio
Hernáiz, Pedro J.
Muñoz, M. J.
Torre, A. de la
Vallejo, Antonio
author_sort Díez López, José Antonio
title Impact of pig slurry on soil properties, water salinization, nitrate leaching and crop yield in a four-year experiment in Central Spain
title_short Impact of pig slurry on soil properties, water salinization, nitrate leaching and crop yield in a four-year experiment in Central Spain
title_full Impact of pig slurry on soil properties, water salinization, nitrate leaching and crop yield in a four-year experiment in Central Spain
title_fullStr Impact of pig slurry on soil properties, water salinization, nitrate leaching and crop yield in a four-year experiment in Central Spain
title_full_unstemmed Impact of pig slurry on soil properties, water salinization, nitrate leaching and crop yield in a four-year experiment in Central Spain
title_sort impact of pig slurry on soil properties, water salinization, nitrate leaching and crop yield in a four-year experiment in central spain
publisher British Society of Soil Science
publishDate 2004
url http://hdl.handle.net/10261/28776
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