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dc.contributor.authorSILVA, W. C. da
dc.contributor.authorCASSOL, P. C.
dc.contributor.authorNICOLOSO, R. da S.
dc.contributor.authorMUMBACH, G. L.
dc.contributor.authorDALL''ORSOLETTA, D. J.
dc.contributor.authorGRANDO, D. L.
dc.contributor.authorGATIBONI, L. C.
dc.date.accessioned2023-12-11T19:32:50Z-
dc.date.available2023-12-11T19:32:50Z-
dc.date.created2023-12-11
dc.date.issued2023
dc.identifier.citationRevista Brasileira de Ciência do Solo, v. 47, ed. e0230049, 2023.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1159478-
dc.descriptionAbstract: 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.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectEnvironmental pollution
dc.subjectSwine manure
dc.subjectP-thresholds
dc.titleEstablishing environmental soil phosphorus thresholds to mitigate its transfer to water bodies in Mato Grosso State, Brazil.
dc.typeArtigo de periódico
dc.subject.thesagroConservação do Solo
dc.subject.thesagroPoluição Ambiental
dc.subject.thesagroDejeto
dc.subject.thesagroSuíno
dc.subject.thesagroEutrofização
dc.subject.thesagroEliminação de Resíduo
dc.subject.thesagroFósforo
dc.subject.nalthesaurusEutrophication
riaa.ainfo.id1159478
riaa.ainfo.lastupdate2023-12-11
dc.identifier.doihttps://doi.org/10.36783/18069657rbcs20230049
dc.contributor.institutionWALQUIRIA CHAVES DA SILVA, Universidade do Estado de Santa Catarina/Lages
dc.contributor.institutionPAULO CEZAR CASSOL, Universidade do Estado de Santa Catarina/Lageseng
dc.contributor.institutionRODRIGO DA SILVEIRA NICOLOSO, CNPSAeng
dc.contributor.institutionGILMAR LUIZ MUMBACH, Universidade do Estado de Santa Catarina/Lageseng
dc.contributor.institutionDANIEL JOÃO DALL''ORSOLETTA, Demétrio Dall’Orsoletta Ensino Agroveterinárioeng
dc.contributor.institutionDOUGLAS LUIZ GRANDO, Universidade Federal de Santa Mariaeng
dc.contributor.institutionLUCIANO COLPO GATIBONI, North Carolina State University.eng
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