Establishing environmental soil phosphorus thresholds to mitigate its transfer to water bodies in Mato Grosso State, Brazil.

SILVA, W. C. da; CASSOL, P. C.; NICOLOSO, R. da S.; MUMBACH, G. L.; DALL''ORSOLETTA, D. J.; GRANDO, D. L.; GATIBONI, L. C.; WALQUIRIA CHAVES DA SILVA, Universidade do Estado de Santa Catarina/Lages

Establishing environmental soil phosphorus thresholds to mitigate its transfer to water bodies in Mato Grosso State, Brazil.

Abstract: Excessive phosphorus (P) applications can increase nutrient levels in the soil, facilitating its transference to aquatic environments and causing contamination. Thus, the environmental P threshold (P-threshold) is a tool to establish a sound level of P in the soil, in which P values below the threshold are harmless to the environment. This study aimed to establish a P-threshold equation for the soils of Mato Grosso State, Brazil. Twenty samples of representative soils from the main swine production regions of the State were collected. These samples were characterized chemically and in terms of P adsorption capacity, then incubated with P rates for 30 days. After incubation, the water-soluble P content (P-water) and the available P content were determined by Mehlich-1 method (P-Mehlich-1). The relationship between P-water and P-Mehlich-1 allowed the determination of the P-Mehlich-1 content from which the amount of nutrient in water increases abruptly, establishing this point as the limit P (P-limit). Subsequently, the P-limit values were plotted against the clay content of the soils, and the resulting equation was used to calculate the P-threshold by adding a safety margin of 20 % to the P-limit versus clay equation. The model was tested on 120 soil samples from Mato Grosso State, and it was able to separate them into two groups with low and high P-water, classified as below or above P-threshold, respectively. Based on that, the simplified equation “P-threshold (mg dm-3) = 13 + 0.5 * % clay” was proposed.

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Bibliographic Details
Main Authors:	SILVA, W. C. da, CASSOL, P. C., NICOLOSO, R. da S., MUMBACH, G. L., DALL''ORSOLETTA, D. J., GRANDO, D. L., GATIBONI, L. C.
Other Authors:	WALQUIRIA CHAVES DA SILVA, Universidade do Estado de Santa Catarina/Lages
Format:	Artigo de periódico biblioteca
Language:	Ingles English
Published:	2023-12-11
Subjects:	Environmental pollution, Swine manure, P-thresholds, Conservação do Solo, Poluição Ambiental, Dejeto, Suíno, Eutrofização, Eliminação de Resíduo, Fósforo, Eutrophication,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1159478 https://doi.org/10.36783/18069657rbcs20230049
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spelling	dig-alice-doc-11594782023-12-11T19:32:50Z Establishing environmental soil phosphorus thresholds to mitigate its transfer to water bodies in Mato Grosso State, Brazil. SILVA, W. C. da CASSOL, P. C. NICOLOSO, R. da S. MUMBACH, G. L. DALL''ORSOLETTA, D. J. GRANDO, D. L. GATIBONI, L. C. WALQUIRIA CHAVES DA SILVA, Universidade do Estado de Santa Catarina/Lages PAULO CEZAR CASSOL, Universidade do Estado de Santa Catarina/Lages RODRIGO DA SILVEIRA NICOLOSO, CNPSA GILMAR LUIZ MUMBACH, Universidade do Estado de Santa Catarina/Lages DANIEL JOÃO DALL''ORSOLETTA, Demétrio Dall’Orsoletta Ensino Agroveterinário DOUGLAS LUIZ GRANDO, Universidade Federal de Santa Maria LUCIANO COLPO GATIBONI, North Carolina State University. Environmental pollution Swine manure P-thresholds Conservação do Solo Poluição Ambiental Dejeto Suíno Eutrofização Eliminação de Resíduo Fósforo Eutrophication Abstract: Excessive phosphorus (P) applications can increase nutrient levels in the soil, facilitating its transference to aquatic environments and causing contamination. Thus, the environmental P threshold (P-threshold) is a tool to establish a sound level of P in the soil, in which P values below the threshold are harmless to the environment. This study aimed to establish a P-threshold equation for the soils of Mato Grosso State, Brazil. Twenty samples of representative soils from the main swine production regions of the State were collected. These samples were characterized chemically and in terms of P adsorption capacity, then incubated with P rates for 30 days. After incubation, the water-soluble P content (P-water) and the available P content were determined by Mehlich-1 method (P-Mehlich-1). The relationship between P-water and P-Mehlich-1 allowed the determination of the P-Mehlich-1 content from which the amount of nutrient in water increases abruptly, establishing this point as the limit P (P-limit). Subsequently, the P-limit values were plotted against the clay content of the soils, and the resulting equation was used to calculate the P-threshold by adding a safety margin of 20 % to the P-limit versus clay equation. The model was tested on 120 soil samples from Mato Grosso State, and it was able to separate them into two groups with low and high P-water, classified as below or above P-threshold, respectively. Based on that, the simplified equation “P-threshold (mg dm-3) = 13 + 0.5 * % clay” was proposed. 2023-12-11T19:32:50Z 2023-12-11T19:32:50Z 2023-12-11 2023 Artigo de periódico Revista Brasileira de Ciência do Solo, v. 47, ed. e0230049, 2023. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1159478 https://doi.org/10.36783/18069657rbcs20230049 Ingles en openAccess
institution	EMBRAPA
collection	DSpace
country	Brasil
countrycode	BR
component	Bibliográfico
access	En linea
databasecode	dig-alice
tag	biblioteca
region	America del Sur
libraryname	Sistema de bibliotecas de EMBRAPA
language	Ingles English
topic	Environmental pollution Swine manure P-thresholds Conservação do Solo Poluição Ambiental Dejeto Suíno Eutrofização Eliminação de Resíduo Fósforo Eutrophication Environmental pollution Swine manure P-thresholds Conservação do Solo Poluição Ambiental Dejeto Suíno Eutrofização Eliminação de Resíduo Fósforo Eutrophication
spellingShingle	Environmental pollution Swine manure P-thresholds Conservação do Solo Poluição Ambiental Dejeto Suíno Eutrofização Eliminação de Resíduo Fósforo Eutrophication Environmental pollution Swine manure P-thresholds Conservação do Solo Poluição Ambiental Dejeto Suíno Eutrofização Eliminação de Resíduo Fósforo Eutrophication SILVA, W. C. da CASSOL, P. C. NICOLOSO, R. da S. MUMBACH, G. L. DALL''ORSOLETTA, D. J. GRANDO, D. L. GATIBONI, L. C. Establishing environmental soil phosphorus thresholds to mitigate its transfer to water bodies in Mato Grosso State, Brazil.
description	Abstract: Excessive phosphorus (P) applications can increase nutrient levels in the soil, facilitating its transference to aquatic environments and causing contamination. Thus, the environmental P threshold (P-threshold) is a tool to establish a sound level of P in the soil, in which P values below the threshold are harmless to the environment. This study aimed to establish a P-threshold equation for the soils of Mato Grosso State, Brazil. Twenty samples of representative soils from the main swine production regions of the State were collected. These samples were characterized chemically and in terms of P adsorption capacity, then incubated with P rates for 30 days. After incubation, the water-soluble P content (P-water) and the available P content were determined by Mehlich-1 method (P-Mehlich-1). The relationship between P-water and P-Mehlich-1 allowed the determination of the P-Mehlich-1 content from which the amount of nutrient in water increases abruptly, establishing this point as the limit P (P-limit). Subsequently, the P-limit values were plotted against the clay content of the soils, and the resulting equation was used to calculate the P-threshold by adding a safety margin of 20 % to the P-limit versus clay equation. The model was tested on 120 soil samples from Mato Grosso State, and it was able to separate them into two groups with low and high P-water, classified as below or above P-threshold, respectively. Based on that, the simplified equation “P-threshold (mg dm-3) = 13 + 0.5 * % clay” was proposed.
author2	WALQUIRIA CHAVES DA SILVA, Universidade do Estado de Santa Catarina/Lages
author_facet	WALQUIRIA CHAVES DA SILVA, Universidade do Estado de Santa Catarina/Lages SILVA, W. C. da CASSOL, P. C. NICOLOSO, R. da S. MUMBACH, G. L. DALL''ORSOLETTA, D. J. GRANDO, D. L. GATIBONI, L. C.
format	Artigo de periódico
topic_facet	Environmental pollution Swine manure P-thresholds Conservação do Solo Poluição Ambiental Dejeto Suíno Eutrofização Eliminação de Resíduo Fósforo Eutrophication
author	SILVA, W. C. da CASSOL, P. C. NICOLOSO, R. da S. MUMBACH, G. L. DALL''ORSOLETTA, D. J. GRANDO, D. L. GATIBONI, L. C.
author_sort	SILVA, W. C. da
title	Establishing environmental soil phosphorus thresholds to mitigate its transfer to water bodies in Mato Grosso State, Brazil.
title_short	Establishing environmental soil phosphorus thresholds to mitigate its transfer to water bodies in Mato Grosso State, Brazil.
title_full	Establishing environmental soil phosphorus thresholds to mitigate its transfer to water bodies in Mato Grosso State, Brazil.
title_fullStr	Establishing environmental soil phosphorus thresholds to mitigate its transfer to water bodies in Mato Grosso State, Brazil.
title_full_unstemmed	Establishing environmental soil phosphorus thresholds to mitigate its transfer to water bodies in Mato Grosso State, Brazil.
title_sort	establishing environmental soil phosphorus thresholds to mitigate its transfer to water bodies in mato grosso state, brazil.
publishDate	2023-12-11
url	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1159478 https://doi.org/10.36783/18069657rbcs20230049
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Establishing environmental soil phosphorus thresholds to mitigate its transfer to water bodies in Mato Grosso State, Brazil.

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