Availability of Zinc in soils of the Eastern region of Paraguay

Availability of Zinc in soils of the Eastern region of Paraguay

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Zinc (Zn) is an essential nutrient for plants, and there is limited information on its availability in Paraguayan soils. The objective of the research was to evaluate and classify the availability of Zn in soils of the Eastern region of Paraguay. For this, a database was generated with the results of soil analyses from the FCA-UNA, CIHB-IPTA and FUCAI-UCA laboratories. The concentration of available Zn in soils was classified as "high" (>1.2 mg kg-1); “medium” (0.5 - 1.2 mg kg-1) and “low” (<0.5 mg kg-1), generating a Zn availability map at the district level. The availability of Zn was evaluated at the district and departmental levels, as well as with descriptive statistics parameters. Considering the average Zn levels at the district level, of the 234 districts that make up the Eastern region of Paraguay, 74% of the districts (174 districts) presented a "high" level, 6% a "medium" level (15 districts) and 3% “low” level of Zn (6 districts). Considering the total number of soil samples analyzed (11,395 samples), 79% (9,038 samples) presented "high" levels of Zn, 12% (1,316 samples) presented "medium" levels of Zn, and only 9% (1,041 samples) presented “low” levels of Zn. The national average, considering the 11,395 soil samples, was 6.5 mg kg-1 of Zn, therefore, in 79% of the soils analyzed in the Eastern region there are Zn levels above the critical level of Zn for agricultural activities,, forage and forestry production.

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Main Authors: Rolón Galeano, Mirelly Paola, Rasche Alvarez, Jimmy Walter, Fatecha Fois, Diego Augusto, Leguizamon Rojas, Carlos Andrés, Rolón Paredes, Gustavo Adolfo, Ortiz Grabski, Camila Erna Aurora
Format: Digital revista
Language:spa
Published: San Lorenzo: Universidad Nacional de Asunción Facultad de Ciencias Agrarias 2023
Online Access:https://www.agr.una.py/revista/index.php/ria/article/view/726
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institution UNA PY
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country Paraguay
countrycode PY
component Revista
access En linea
databasecode rev-ria
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region America del Sur
libraryname Biblioteca de la Facultad de Ciencias Agrarias de la UNA PY
language spa
format Digital
author Rolón Galeano, Mirelly Paola
Rasche Alvarez, Jimmy Walter
Fatecha Fois, Diego Augusto
Leguizamon Rojas, Carlos Andrés
Rolón Paredes, Gustavo Adolfo
Ortiz Grabski, Camila Erna Aurora
spellingShingle Rolón Galeano, Mirelly Paola
Rasche Alvarez, Jimmy Walter
Fatecha Fois, Diego Augusto
Leguizamon Rojas, Carlos Andrés
Rolón Paredes, Gustavo Adolfo
Ortiz Grabski, Camila Erna Aurora
Availability of Zinc in soils of the Eastern region of Paraguay
author_facet Rolón Galeano, Mirelly Paola
Rasche Alvarez, Jimmy Walter
Fatecha Fois, Diego Augusto
Leguizamon Rojas, Carlos Andrés
Rolón Paredes, Gustavo Adolfo
Ortiz Grabski, Camila Erna Aurora
author_sort Rolón Galeano, Mirelly Paola
title Availability of Zinc in soils of the Eastern region of Paraguay
title_short Availability of Zinc in soils of the Eastern region of Paraguay
title_full Availability of Zinc in soils of the Eastern region of Paraguay
title_fullStr Availability of Zinc in soils of the Eastern region of Paraguay
title_full_unstemmed Availability of Zinc in soils of the Eastern region of Paraguay
title_sort availability of zinc in soils of the eastern region of paraguay
description Zinc (Zn) is an essential nutrient for plants, and there is limited information on its availability in Paraguayan soils. The objective of the research was to evaluate and classify the availability of Zn in soils of the Eastern region of Paraguay. For this, a database was generated with the results of soil analyses from the FCA-UNA, CIHB-IPTA and FUCAI-UCA laboratories. The concentration of available Zn in soils was classified as "high" (>1.2 mg kg-1); “medium” (0.5 - 1.2 mg kg-1) and “low” (<0.5 mg kg-1), generating a Zn availability map at the district level. The availability of Zn was evaluated at the district and departmental levels, as well as with descriptive statistics parameters. Considering the average Zn levels at the district level, of the 234 districts that make up the Eastern region of Paraguay, 74% of the districts (174 districts) presented a "high" level, 6% a "medium" level (15 districts) and 3% “low” level of Zn (6 districts). Considering the total number of soil samples analyzed (11,395 samples), 79% (9,038 samples) presented "high" levels of Zn, 12% (1,316 samples) presented "medium" levels of Zn, and only 9% (1,041 samples) presented “low” levels of Zn. The national average, considering the 11,395 soil samples, was 6.5 mg kg-1 of Zn, therefore, in 79% of the soils analyzed in the Eastern region there are Zn levels above the critical level of Zn for agricultural activities,, forage and forestry production.
publisher San Lorenzo: Universidad Nacional de Asunción Facultad de Ciencias Agrarias
publishDate 2023
url https://www.agr.una.py/revista/index.php/ria/article/view/726
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spelling oai:ojs.www.agr.una.py:article7262023-09-21T18:05:49Z Availability of Zinc in soils of the Eastern region of Paraguay Disponibilidad de Zinc en suelos de la región Oriental del Paraguay Disponibilidade de Zinc em solos da região leste do Paraguai Rolón Galeano, Mirelly Paola Rasche Alvarez, Jimmy Walter Fatecha Fois, Diego Augusto Leguizamon Rojas, Carlos Andrés Rolón Paredes, Gustavo Adolfo Ortiz Grabski, Camila Erna Aurora micronutrients, trace element, heavy metals micronutrientes oligoelemento metales pesados micronutrientes, oligoelementos, metais pesados Zinc (Zn) is an essential nutrient for plants, and there is limited information on its availability in Paraguayan soils. The objective of the research was to evaluate and classify the availability of Zn in soils of the Eastern region of Paraguay. For this, a database was generated with the results of soil analyses from the FCA-UNA, CIHB-IPTA and FUCAI-UCA laboratories. The concentration of available Zn in soils was classified as "high" (>1.2 mg kg-1); “medium” (0.5 - 1.2 mg kg-1) and “low” (<0.5 mg kg-1), generating a Zn availability map at the district level. The availability of Zn was evaluated at the district and departmental levels, as well as with descriptive statistics parameters. Considering the average Zn levels at the district level, of the 234 districts that make up the Eastern region of Paraguay, 74% of the districts (174 districts) presented a "high" level, 6% a "medium" level (15 districts) and 3% “low” level of Zn (6 districts). Considering the total number of soil samples analyzed (11,395 samples), 79% (9,038 samples) presented "high" levels of Zn, 12% (1,316 samples) presented "medium" levels of Zn, and only 9% (1,041 samples) presented “low” levels of Zn. The national average, considering the 11,395 soil samples, was 6.5 mg kg-1 of Zn, therefore, in 79% of the soils analyzed in the Eastern region there are Zn levels above the critical level of Zn for agricultural activities,, forage and forestry production. El Zinc (Zn) es un nutriente esencial para las plantas, existe limitada información de su disponibilidad en los suelos de Paraguay. El objetivo de la investigación consistió en evaluar y clasificar la disponibilidad de Zn en suelos de la región Oriental del Paraguay. Para ello fue generada una base de datos con los resultados de análisis de suelo de los laboratorios de la FCA-UNA, CIHB-IPTA y FUCAI-UCA. Se clasificó la concentración  de Zn disponible de los suelos en nivel “alto” (>1,2 mg kg-1); “medio” (0,5 - 1,2 mg kg-1) y “bajo” (<0,5 mg kg-1), generándose un mapa de disponibilidad de Zn a nivel distrital. Se evaluó la disponibilidad de Zn a nivel distrital, departamental, así como, con parámetros de estadística descriptiva. Considerando la media de los niveles de Zn a nivel de distrito, de los 234 distritos que conforman la región Oriental del Paraguay, en el 74% de los distritos (174 distritos) presentaron nivel “alto”, 6% nivel “medio” (15 distritos) y el 3% nivel “bajo” de Zn (6 distritos). Considerando el número total de muestras de suelo analizadas (11.395 muestras), el 79% (9.038 muestras) presentaron  niveles  “alto” de Zn,  el 12% (1.316 muestras) presentaron  niveles  “medio” de Zn,  y solo el 9% (1.041 muestras) presentaron niveles “bajo” de Zn. La media nacional considerando las 11.395 muestras de suelo fue de 6,5 mg kg-1 de Zn, por lo tanto, en 79% de los suelos analizados de la región Oriental hay niveles de Zn superior al nivel crítico de Zn para las actividades agrícolas, de forrajes y forestales de producción. O zinc (Zn) é um nutriente essencial para as plantas, mas há pouca informação sobre sua disponibilidade nos solos paraguaios. O objetivo da pesquisa foi avaliar e classificar a disponibilidade de Zn em solos da região leste do Paraguai. Para isso, foi gerado um banco de dados com os resultados das análises de solo dos laboratórios da FCA-UNA, CIHB-IPTA e FUCAI-UCA. A concentração de Zn disponível nos solos foi classificada como "alta" (>1,2 mg kg-1), "média" (0,5 - 1,2 mg kg-1) e "baixa" (<0,5 mg kg-1), gerando um mapa de disponibilidade de Zn a nível distrital. A disponibilidade de Zn foi avaliada em parâmetros estatísticos distritais, departamentais e descritivos. Considerando os níveis médios de Zn a nível distrital, dos 234 distritos que compõem a região leste do Paraguai, 74% dos distritos (174 distritos) apresentaram níveis "altos", 6% níveis "médios" (15 distritos) e 3% níveis "baixos" de Zn (6 distritos). Considerando o número total de amostras de solo analisadas (11.395 amostras), 79% (9.038 amostras) apresentaram níveis "altos" de Zn, 12% (1.316 amostras) apresentaram níveis "médios" de Zn e apenas 9% (1.041 amostras) apresentaram níveis "baixos" de Zn. A média nacional, considerando as 11.395 amostras de solo, foi de 6,5 mg kg-1 de Zn, pelo que em 79% dos solos analisados na região Este existem níveis de Zn acima do nível crítico de Zn para as actividades em que o solo foi analisado. San Lorenzo: Universidad Nacional de Asunción Facultad de Ciencias Agrarias 2023-09-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://www.agr.una.py/revista/index.php/ria/article/view/726 10.18004/investig.agrar.2023.junio.2501726 Investigación Agraria; Vol. 25 No. 1 (2023): Enero-Junio; 19-25 Investigación agraria; Vol. 25 Núm. 1 (2023): Enero-Junio; 19-25 Investigación Agraria; v. 25 n. 1 (2023): Enero-Junio; 19-25 2305-0683 1684-9086 spa https://www.agr.una.py/revista/index.php/ria/article/view/726/547 Derechos de autor 2023 Mirelly Paola Rolón Galeano, Jimmy Walter Rasche Alvarez, Diego Augusto Fatecha Fois, Carlos Andrés Leguizamon Rojas, Gustavo Adolfo Rolón Paredes, Camila Erna Aurora Ortiz Grabski https://creativecommons.org/licenses/by/4.0

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