Estimating lime requirements for tropical soils: Model comparison and development
Acid tropical soils may become more productive when treated with agricultural lime, but optimal lime rates have yet to be determined in many tropical regions. In these regions, lime rates can be estimated with lime requirement models based on widely available soil data. We reviewed seven of these models and introduced a new model (LiTAS). We evaluated the models’ ability to predict the amount of lime needed to reach a target change in soil chemical properties with data from four soil incubation studies covering 31 soil types. Two foundational models, one targeting acidity saturation and the other targeting base saturation, were more accurate than the five models that were derived from them, while the LiTAS model was the most accurate. The models were used to estimate lime requirements for 303 African soil samples. We found large differences in the estimated lime rates depending on the target soil chemical property of the model. Therefore, an important first step in formulating liming recommendations is to clearly identify the soil property of interest and the target value that needs to be reached. While the LiTAS model can be useful for strategic research, more information on acidity-related problems other than aluminum toxicity is needed to comprehensively assess the benefits of liming.
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Format: | Article biblioteca |
Language: | English |
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Elsevier
2023
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Subjects: | AGRICULTURAL SCIENCES AND BIOTECHNOLOGY, Exchangeable Acidity, Aluminum Saturation, Calcium Carbonate Equivalent, CHEMICOPHYSICAL PROPERTIES, LIMES, TROPICAL ZONES, ACID SOILS, ALUMINIUM, BASE SATURATION, CALCIUM CARBONATE, Sustainable Agrifood Systems, |
Online Access: | https://hdl.handle.net/10883/22553 |
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dig-cimmyt-10883-225532024-01-22T15:49:40Z Estimating lime requirements for tropical soils: Model comparison and development Aramburu Merlos, F. Silva, J.V. Baudron, F. Hijmans, R.J. AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Exchangeable Acidity Aluminum Saturation Calcium Carbonate Equivalent CHEMICOPHYSICAL PROPERTIES LIMES TROPICAL ZONES ACID SOILS ALUMINIUM BASE SATURATION CALCIUM CARBONATE Sustainable Agrifood Systems Acid tropical soils may become more productive when treated with agricultural lime, but optimal lime rates have yet to be determined in many tropical regions. In these regions, lime rates can be estimated with lime requirement models based on widely available soil data. We reviewed seven of these models and introduced a new model (LiTAS). We evaluated the models’ ability to predict the amount of lime needed to reach a target change in soil chemical properties with data from four soil incubation studies covering 31 soil types. Two foundational models, one targeting acidity saturation and the other targeting base saturation, were more accurate than the five models that were derived from them, while the LiTAS model was the most accurate. The models were used to estimate lime requirements for 303 African soil samples. We found large differences in the estimated lime rates depending on the target soil chemical property of the model. Therefore, an important first step in formulating liming recommendations is to clearly identify the soil property of interest and the target value that needs to be reached. While the LiTAS model can be useful for strategic research, more information on acidity-related problems other than aluminum toxicity is needed to comprehensively assess the benefits of liming. 2023-03-30T23:31:10Z 2023-03-30T23:31:10Z 2023 Article Published Version https://hdl.handle.net/10883/22553 10.1016/j.geoderma.2023.116421 English https://github.com/cropmodels/limer https://www.sciencedirect.com/science/article/pii/S0016706123000988?via%3Dihub#s0150 Poverty reduction, livelihoods & jobs Excellence in Agronomy Resilient Agrifood Systems Bill & Melinda Gates Foundation (BMGF) https://hdl.handle.net/10568/131379 CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose Open Access Amsterdam (Netherlands) Elsevier 432 0016-7061 Geoderma 116421 |
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AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Exchangeable Acidity Aluminum Saturation Calcium Carbonate Equivalent CHEMICOPHYSICAL PROPERTIES LIMES TROPICAL ZONES ACID SOILS ALUMINIUM BASE SATURATION CALCIUM CARBONATE Sustainable Agrifood Systems AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Exchangeable Acidity Aluminum Saturation Calcium Carbonate Equivalent CHEMICOPHYSICAL PROPERTIES LIMES TROPICAL ZONES ACID SOILS ALUMINIUM BASE SATURATION CALCIUM CARBONATE Sustainable Agrifood Systems |
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AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Exchangeable Acidity Aluminum Saturation Calcium Carbonate Equivalent CHEMICOPHYSICAL PROPERTIES LIMES TROPICAL ZONES ACID SOILS ALUMINIUM BASE SATURATION CALCIUM CARBONATE Sustainable Agrifood Systems AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Exchangeable Acidity Aluminum Saturation Calcium Carbonate Equivalent CHEMICOPHYSICAL PROPERTIES LIMES TROPICAL ZONES ACID SOILS ALUMINIUM BASE SATURATION CALCIUM CARBONATE Sustainable Agrifood Systems Aramburu Merlos, F. Silva, J.V. Baudron, F. Hijmans, R.J. Estimating lime requirements for tropical soils: Model comparison and development |
description |
Acid tropical soils may become more productive when treated with agricultural lime, but optimal lime rates have yet to be determined in many tropical regions. In these regions, lime rates can be estimated with lime requirement models based on widely available soil data. We reviewed seven of these models and introduced a new model (LiTAS). We evaluated the models’ ability to predict the amount of lime needed to reach a target change in soil chemical properties with data from four soil incubation studies covering 31 soil types. Two foundational models, one targeting acidity saturation and the other targeting base saturation, were more accurate than the five models that were derived from them, while the LiTAS model was the most accurate. The models were used to estimate lime requirements for 303 African soil samples. We found large differences in the estimated lime rates depending on the target soil chemical property of the model. Therefore, an important first step in formulating liming recommendations is to clearly identify the soil property of interest and the target value that needs to be reached. While the LiTAS model can be useful for strategic research, more information on acidity-related problems other than aluminum toxicity is needed to comprehensively assess the benefits of liming. |
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Article |
topic_facet |
AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Exchangeable Acidity Aluminum Saturation Calcium Carbonate Equivalent CHEMICOPHYSICAL PROPERTIES LIMES TROPICAL ZONES ACID SOILS ALUMINIUM BASE SATURATION CALCIUM CARBONATE Sustainable Agrifood Systems |
author |
Aramburu Merlos, F. Silva, J.V. Baudron, F. Hijmans, R.J. |
author_facet |
Aramburu Merlos, F. Silva, J.V. Baudron, F. Hijmans, R.J. |
author_sort |
Aramburu Merlos, F. |
title |
Estimating lime requirements for tropical soils: Model comparison and development |
title_short |
Estimating lime requirements for tropical soils: Model comparison and development |
title_full |
Estimating lime requirements for tropical soils: Model comparison and development |
title_fullStr |
Estimating lime requirements for tropical soils: Model comparison and development |
title_full_unstemmed |
Estimating lime requirements for tropical soils: Model comparison and development |
title_sort |
estimating lime requirements for tropical soils: model comparison and development |
publisher |
Elsevier |
publishDate |
2023 |
url |
https://hdl.handle.net/10883/22553 |
work_keys_str_mv |
AT aramburumerlosf estimatinglimerequirementsfortropicalsoilsmodelcomparisonanddevelopment AT silvajv estimatinglimerequirementsfortropicalsoilsmodelcomparisonanddevelopment AT baudronf estimatinglimerequirementsfortropicalsoilsmodelcomparisonanddevelopment AT hijmansrj estimatinglimerequirementsfortropicalsoilsmodelcomparisonanddevelopment |
_version_ |
1792501495129702400 |