Lixiviación de nitratos a partir de fertilizantes y biosólidos en un suelo arcilloso

Authors
Rimski-korsakov, Helena; Alconada Magliano, Margarita María; Lavado, Raul Silvio
Publication Year
2000
Language
Spanish
Format
article
Status
Published version
Description
Leaching of fertilizers is one of the main reasons of nitrate concentration increases in underground waters. We studied the effect of fertilizers and biosolids on nitrate accumulation in soil depth. We determined nitrates at different depths of a beheaded Vertic Argiudoll, near La Plata city. The application of biosolids in high doses (equivalent to 200 Mg ha-1(wet weight basis) for one year, showed significant nitrate accumulation at soil depth in relation to the check. The application of mineral fertilizers and biosolids in doses equivalent to 25 Mg ha-1 (wet weight basis) for three successive years showed lower risk of nitrate leaching. A plot fertirrigated (soluble fertilizers) showed high nitrate accumulation in soil depth and then high contamination risk. The clayey soil texture did not limit the risk of nitrate leaching.
Fil: Rimski-korsakov, Helena. Universidad de Buenos Aires. Facultad de Agronomía; Argentina
Fil: Alconada Magliano, Margarita María. Universidad Nacional de La Plata; Argentina
Fil: Lavado, Raul Silvio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales; Argentina
Subject
LIXIVIACIÓN DE NITRATOS
FERTILIZANTES
BIOSOLIDOS
Agricultura
Agricultura, Silvicultura y Pesca
CIENCIAS AGRÍCOLAS
Access level
Restricted access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/59250