Chemical variables affecting the lime requirement determination of tropical peat soils
The carboxyl group in humic acid (HA) is the major functional group influencing the soil acidity. The soil pH(H2O), %HA, buffer capacity, milliequivalent (meq) COOH, meq phenolic OH, and meq total acidity/100 g peat are significantly correlated with lime requirement (LR). The LR of peat soils with h...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Published: |
Taylor & Francis
1995
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/115264/ |
| _version_ | 1848866730208657408 |
|---|---|
| author | Husni, M.H.A. Devi, Shanthi Manas, A.R. Anuar, A.R. Shamshuddin, J. |
| author_facet | Husni, M.H.A. Devi, Shanthi Manas, A.R. Anuar, A.R. Shamshuddin, J. |
| author_sort | Husni, M.H.A. |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The carboxyl group in humic acid (HA) is the major functional group influencing the soil acidity. The soil pH(H2O), %HA, buffer capacity, milliequivalent (meq) COOH, meq phenolic OH, and meq total acidity/100 g peat are significantly correlated with lime requirement (LR). The LR of peat soils with high soil pH is low regardless of the effect of other variables (%HA, meq COOH, meq phenolic OH, meq total acidity/100 g peat, and buffer capacity). This indicates that the soil pH(H2O) is an important factor influencing the LR of tropical peat soils. Milliequivalent COOH/g HA is inadequate criteria for determining peat soil acidity component as it changes with humification. However, meq COOH/100 g peat (meq COOH/g HA x %HA) is significantly correlated with LR and this implies the importance of %HA as soil acidity component in tropical peat soils. Buffer capacity is significantly correlated with %HA, meq COOH, meq phenolic OH, and meq total acidity/100 g peat. Stepwise multiple regression analysis indicates that pH(H2O), %HA, and buffer capacity are factors influencing the LR of tropical peat soils. |
| first_indexed | 2025-11-15T14:25:15Z |
| format | Article |
| id | upm-115264 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T14:25:15Z |
| publishDate | 1995 |
| publisher | Taylor & Francis |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1152642025-02-27T02:46:32Z http://psasir.upm.edu.my/id/eprint/115264/ Chemical variables affecting the lime requirement determination of tropical peat soils Husni, M.H.A. Devi, Shanthi Manas, A.R. Anuar, A.R. Shamshuddin, J. The carboxyl group in humic acid (HA) is the major functional group influencing the soil acidity. The soil pH(H2O), %HA, buffer capacity, milliequivalent (meq) COOH, meq phenolic OH, and meq total acidity/100 g peat are significantly correlated with lime requirement (LR). The LR of peat soils with high soil pH is low regardless of the effect of other variables (%HA, meq COOH, meq phenolic OH, meq total acidity/100 g peat, and buffer capacity). This indicates that the soil pH(H2O) is an important factor influencing the LR of tropical peat soils. Milliequivalent COOH/g HA is inadequate criteria for determining peat soil acidity component as it changes with humification. However, meq COOH/100 g peat (meq COOH/g HA x %HA) is significantly correlated with LR and this implies the importance of %HA as soil acidity component in tropical peat soils. Buffer capacity is significantly correlated with %HA, meq COOH, meq phenolic OH, and meq total acidity/100 g peat. Stepwise multiple regression analysis indicates that pH(H2O), %HA, and buffer capacity are factors influencing the LR of tropical peat soils. Taylor & Francis 1995 Article PeerReviewed Husni, M.H.A. and Devi, Shanthi and Manas, A.R. and Anuar, A.R. and Shamshuddin, J. (1995) Chemical variables affecting the lime requirement determination of tropical peat soils. Communications in Soil Science and Plant Analysis, 26 (13-14). pp. 2111-2122. ISSN 0010-3624; eISSN: 1532-2416 https://www.tandfonline.com/doi/full/10.1080/00103629509369433 10.1080/00103629509369433 |
| spellingShingle | Husni, M.H.A. Devi, Shanthi Manas, A.R. Anuar, A.R. Shamshuddin, J. Chemical variables affecting the lime requirement determination of tropical peat soils |
| title | Chemical variables affecting the lime requirement determination of tropical peat soils |
| title_full | Chemical variables affecting the lime requirement determination of tropical peat soils |
| title_fullStr | Chemical variables affecting the lime requirement determination of tropical peat soils |
| title_full_unstemmed | Chemical variables affecting the lime requirement determination of tropical peat soils |
| title_short | Chemical variables affecting the lime requirement determination of tropical peat soils |
| title_sort | chemical variables affecting the lime requirement determination of tropical peat soils |
| url | http://psasir.upm.edu.my/id/eprint/115264/ http://psasir.upm.edu.my/id/eprint/115264/ http://psasir.upm.edu.my/id/eprint/115264/ |