Most Plant Nutrient Elements Are Retained by Biochar in Soil
Biochar may contain substantial amounts of plant nutrient elements, and at typical rates of application, may supply luxury levels of K, Ca, P, and other plant nutrients. However, little is known of the agronomic effectiveness of these nutrients because they exist in diverse compounds and are located...
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doaj-610b5ac3452b4e98add94087a73cf0ee2020-11-25T02:21:51ZengMDPI AGSoil Systems2571-87892019-11-01347510.3390/soilsystems3040075soilsystems3040075Most Plant Nutrient Elements Are Retained by Biochar in SoilTanawan Limwikran0Irb Kheoruenromne1Anchalee Suddhiprakarn2Nattaporn Prakongkep3Robert J. Gilkes4Department of Soil Science, Faculty of Agriculture, Kasetsart University, Bangkok 10900, ThailandDepartment of Soil Science, Faculty of Agriculture, Kasetsart University, Bangkok 10900, ThailandDepartment of Soil Science, Faculty of Agriculture, Kasetsart University, Bangkok 10900, ThailandOffice of Science for Land Development, Land Development Department, Bangkok 10900, ThailandSchool of Agriculture and Environment, Faculty of Science, University of Western Australia, Crawley 6009, AustraliaBiochar may contain substantial amounts of plant nutrient elements, and at typical rates of application, may supply luxury levels of K, Ca, P, and other plant nutrients. However, little is known of the agronomic effectiveness of these nutrients because they exist in diverse compounds and are located in the microporous matrix of biochar particles. We have identified the compounds and location of nutrient elements in three biochars and observed their release from biochar particles in soil. Much K was quickly released from biochar but little or no Ca, Mg, S, and P were released over eight months, which represents a very different behavior from chemical fertilizers that are mostly water soluble. There is clearly a need to determine the availability to plant nutrients in biochar. Appropriate laboratory methods should be developed for measuring the availability of plant nutrients as standard methods of fertilizer analysis are ineffective.https://www.mdpi.com/2571-8789/3/4/75biocharplant nutrientsdissolutionmicroporosity |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Tanawan Limwikran Irb Kheoruenromne Anchalee Suddhiprakarn Nattaporn Prakongkep Robert J. Gilkes |
spellingShingle |
Tanawan Limwikran Irb Kheoruenromne Anchalee Suddhiprakarn Nattaporn Prakongkep Robert J. Gilkes Most Plant Nutrient Elements Are Retained by Biochar in Soil Soil Systems biochar plant nutrients dissolution microporosity |
author_facet |
Tanawan Limwikran Irb Kheoruenromne Anchalee Suddhiprakarn Nattaporn Prakongkep Robert J. Gilkes |
author_sort |
Tanawan Limwikran |
title |
Most Plant Nutrient Elements Are Retained by Biochar in Soil |
title_short |
Most Plant Nutrient Elements Are Retained by Biochar in Soil |
title_full |
Most Plant Nutrient Elements Are Retained by Biochar in Soil |
title_fullStr |
Most Plant Nutrient Elements Are Retained by Biochar in Soil |
title_full_unstemmed |
Most Plant Nutrient Elements Are Retained by Biochar in Soil |
title_sort |
most plant nutrient elements are retained by biochar in soil |
publisher |
MDPI AG |
series |
Soil Systems |
issn |
2571-8789 |
publishDate |
2019-11-01 |
description |
Biochar may contain substantial amounts of plant nutrient elements, and at typical rates of application, may supply luxury levels of K, Ca, P, and other plant nutrients. However, little is known of the agronomic effectiveness of these nutrients because they exist in diverse compounds and are located in the microporous matrix of biochar particles. We have identified the compounds and location of nutrient elements in three biochars and observed their release from biochar particles in soil. Much K was quickly released from biochar but little or no Ca, Mg, S, and P were released over eight months, which represents a very different behavior from chemical fertilizers that are mostly water soluble. There is clearly a need to determine the availability to plant nutrients in biochar. Appropriate laboratory methods should be developed for measuring the availability of plant nutrients as standard methods of fertilizer analysis are ineffective. |
topic |
biochar plant nutrients dissolution microporosity |
url |
https://www.mdpi.com/2571-8789/3/4/75 |
work_keys_str_mv |
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