Accuracy of methods to estimate potential acidity and lime requirement in soils of west region of Santa Catarina
ABSTRACT: The objective of this study was to compare two methods of evaluation of potencial acidity (H+Al) and two methods to estimate liming requirement (LR) for soils from the west region of Santa Catarina State, Brazil. Fourteen soils were incubated with 7 lime rates for 120 days, obtaining the r...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Federal de Santa Maria
2018-04-01
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| Series: | Ciência Rural |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000400253&lng=en&tlng=en |
| _version_ | 1819230830034157568 |
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| author | Rodrigo Predebon Luciano Colpo Gatiboni Gilmar Luiz Mumbach Djalma Eugenio Schmitt Daniel João Dall’Orsoletta Gustavo Brunetto |
| author_facet | Rodrigo Predebon Luciano Colpo Gatiboni Gilmar Luiz Mumbach Djalma Eugenio Schmitt Daniel João Dall’Orsoletta Gustavo Brunetto |
| author_sort | Rodrigo Predebon |
| collection | DOAJ |
| description | ABSTRACT: The objective of this study was to compare two methods of evaluation of potencial acidity (H+Al) and two methods to estimate liming requirement (LR) for soils from the west region of Santa Catarina State, Brazil. Fourteen soils were incubated with 7 lime rates for 120 days, obtaining the real values of H+Al at pH 7.0 and LR. These values were used as reference to evaluate the accuracy of two H+Al estimating methods: SMP buffer and calcium acetate at pH 7.0, and to evaluate the accuracy of two LR methods: base saturation (BS) and SMP index. On average, H+Al was underestimated in 6 and 40% by SMP and calcium acetate methods, respectively, especially in soils with high buffer capacity. The LR was underestimated in 20 and 30% by SMP index and BS, respectively. The SMP Index showed a better LR estimative than BS, especially in soils with high buffer capacity. |
| first_indexed | 2024-12-23T11:35:18Z |
| format | Article |
| id | doaj.art-9381b5532e7847869c36f35373ee9e15 |
| institution | Directory Open Access Journal |
| issn | 1678-4596 |
| language | English |
| last_indexed | 2024-12-23T11:35:18Z |
| publishDate | 2018-04-01 |
| publisher | Universidade Federal de Santa Maria |
| record_format | Article |
| series | Ciência Rural |
| spelling | doaj.art-9381b5532e7847869c36f35373ee9e152022-12-21T17:48:40ZengUniversidade Federal de Santa MariaCiência Rural1678-45962018-04-0148410.1590/0103-8478cr20160935S0103-84782018000400253Accuracy of methods to estimate potential acidity and lime requirement in soils of west region of Santa CatarinaRodrigo PredebonLuciano Colpo GatiboniGilmar Luiz MumbachDjalma Eugenio SchmittDaniel João Dall’OrsolettaGustavo BrunettoABSTRACT: The objective of this study was to compare two methods of evaluation of potencial acidity (H+Al) and two methods to estimate liming requirement (LR) for soils from the west region of Santa Catarina State, Brazil. Fourteen soils were incubated with 7 lime rates for 120 days, obtaining the real values of H+Al at pH 7.0 and LR. These values were used as reference to evaluate the accuracy of two H+Al estimating methods: SMP buffer and calcium acetate at pH 7.0, and to evaluate the accuracy of two LR methods: base saturation (BS) and SMP index. On average, H+Al was underestimated in 6 and 40% by SMP and calcium acetate methods, respectively, especially in soils with high buffer capacity. The LR was underestimated in 20 and 30% by SMP index and BS, respectively. The SMP Index showed a better LR estimative than BS, especially in soils with high buffer capacity.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000400253&lng=en&tlng=enSMPcalcium acetatebase saturationliming |
| spellingShingle | Rodrigo Predebon Luciano Colpo Gatiboni Gilmar Luiz Mumbach Djalma Eugenio Schmitt Daniel João Dall’Orsoletta Gustavo Brunetto Accuracy of methods to estimate potential acidity and lime requirement in soils of west region of Santa Catarina Ciência Rural SMP calcium acetate base saturation liming |
| title | Accuracy of methods to estimate potential acidity and lime requirement in soils of west region of Santa Catarina |
| title_full | Accuracy of methods to estimate potential acidity and lime requirement in soils of west region of Santa Catarina |
| title_fullStr | Accuracy of methods to estimate potential acidity and lime requirement in soils of west region of Santa Catarina |
| title_full_unstemmed | Accuracy of methods to estimate potential acidity and lime requirement in soils of west region of Santa Catarina |
| title_short | Accuracy of methods to estimate potential acidity and lime requirement in soils of west region of Santa Catarina |
| title_sort | accuracy of methods to estimate potential acidity and lime requirement in soils of west region of santa catarina |
| topic | SMP calcium acetate base saturation liming |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000400253&lng=en&tlng=en |
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