Correction of resistance to penetration by pedofunctions and a reference soil water content
The soil penetration resistance is an important indicator of soil compaction and is strongly influenced by soil water content. The objective of this study was to develop mathematical models to normalize soil penetration resistance (SPR), using a reference value of gravimetric soil water content (U)....
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Ciência do Solo
2012-12-01
|
| Series: | Revista Brasileira de Ciência do Solo |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000600004&lng=en&tlng=en |
| _version_ | 1818607339238850560 |
|---|---|
| author | Moacir Tuzzin de Moraes Henrique Debiasi Julio Cezar Franchini Vanderlei Rodrigues da Silva |
| author_facet | Moacir Tuzzin de Moraes Henrique Debiasi Julio Cezar Franchini Vanderlei Rodrigues da Silva |
| author_sort | Moacir Tuzzin de Moraes |
| collection | DOAJ |
| description | The soil penetration resistance is an important indicator of soil compaction and is strongly influenced by soil water content. The objective of this study was to develop mathematical models to normalize soil penetration resistance (SPR), using a reference value of gravimetric soil water content (U). For this purpose, SPR was determined with an impact penetrometer, in an experiment on a Dystroferric Red Latossol (Rhodic Eutrudox), at six levels of soil compaction, induced by mechanical chiseling and additional compaction by the traffic of a harvester (four, eight, 10, and 20 passes); in addition to a control treatment under no-tillage, without chiseling or additional compaction. To broaden the range of U values, SPR was evaluated in different periods. Undisturbed soil cores were sampled to quantify the soil bulk density (BD). Pedotransfer functions were generated correlating the values of U and BD to the SPR values. By these functions, the SPR was adequately corrected for all U and BD data ranges. The method requires only SPR and U as input variables in the models. However, different pedofunctions are needed according to the soil layer evaluated. After adjusting the pedotransfer functions, the differences in the soil compaction levels among the treatments, previously masked by variations of U, became detectable. |
| first_indexed | 2024-12-16T14:25:11Z |
| format | Article |
| id | doaj.art-17c465541916401386bd919b1d7130c9 |
| institution | Directory Open Access Journal |
| issn | 1806-9657 |
| language | English |
| last_indexed | 2024-12-16T14:25:11Z |
| publishDate | 2012-12-01 |
| publisher | Sociedade Brasileira de Ciência do Solo |
| record_format | Article |
| series | Revista Brasileira de Ciência do Solo |
| spelling | doaj.art-17c465541916401386bd919b1d7130c92022-12-21T22:28:23ZengSociedade Brasileira de Ciência do SoloRevista Brasileira de Ciência do Solo1806-96572012-12-013661704171310.1590/S0100-06832012000600004S0100-06832012000600004Correction of resistance to penetration by pedofunctions and a reference soil water contentMoacir Tuzzin de Moraes0Henrique Debiasi1Julio Cezar Franchini2Vanderlei Rodrigues da Silva3Universidade Federal de Santa MariaEmbrapaEmbrapaUniversidade Federal de Santa MariaThe soil penetration resistance is an important indicator of soil compaction and is strongly influenced by soil water content. The objective of this study was to develop mathematical models to normalize soil penetration resistance (SPR), using a reference value of gravimetric soil water content (U). For this purpose, SPR was determined with an impact penetrometer, in an experiment on a Dystroferric Red Latossol (Rhodic Eutrudox), at six levels of soil compaction, induced by mechanical chiseling and additional compaction by the traffic of a harvester (four, eight, 10, and 20 passes); in addition to a control treatment under no-tillage, without chiseling or additional compaction. To broaden the range of U values, SPR was evaluated in different periods. Undisturbed soil cores were sampled to quantify the soil bulk density (BD). Pedotransfer functions were generated correlating the values of U and BD to the SPR values. By these functions, the SPR was adequately corrected for all U and BD data ranges. The method requires only SPR and U as input variables in the models. However, different pedofunctions are needed according to the soil layer evaluated. After adjusting the pedotransfer functions, the differences in the soil compaction levels among the treatments, previously masked by variations of U, became detectable.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000600004&lng=en&tlng=enfunção de pedotransferênciaLatossolo Vermelhopenetrômetro de impactocompactação do solo |
| spellingShingle | Moacir Tuzzin de Moraes Henrique Debiasi Julio Cezar Franchini Vanderlei Rodrigues da Silva Correction of resistance to penetration by pedofunctions and a reference soil water content Revista Brasileira de Ciência do Solo função de pedotransferência Latossolo Vermelho penetrômetro de impacto compactação do solo |
| title | Correction of resistance to penetration by pedofunctions and a reference soil water content |
| title_full | Correction of resistance to penetration by pedofunctions and a reference soil water content |
| title_fullStr | Correction of resistance to penetration by pedofunctions and a reference soil water content |
| title_full_unstemmed | Correction of resistance to penetration by pedofunctions and a reference soil water content |
| title_short | Correction of resistance to penetration by pedofunctions and a reference soil water content |
| title_sort | correction of resistance to penetration by pedofunctions and a reference soil water content |
| topic | função de pedotransferência Latossolo Vermelho penetrômetro de impacto compactação do solo |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000600004&lng=en&tlng=en |
| work_keys_str_mv | AT moacirtuzzindemoraes correctionofresistancetopenetrationbypedofunctionsandareferencesoilwatercontent AT henriquedebiasi correctionofresistancetopenetrationbypedofunctionsandareferencesoilwatercontent AT juliocezarfranchini correctionofresistancetopenetrationbypedofunctionsandareferencesoilwatercontent AT vanderleirodriguesdasilva correctionofresistancetopenetrationbypedofunctionsandareferencesoilwatercontent |