Boron adsorption in semiarid Mediterranean soils under the influence of background electrolytes
BACKGROUND AND OBJECTIVES: Boron is a micronutrient of high importance, both for plant development and normal growth. The range between boron deficiency and toxicity is very narrow, which makes boron unique among the essential micronutrients. Boron adsorption is one of the most important factors det...
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2022-10-01
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| Series: | Global Journal of Environmental Science and Management |
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| author | S. Fatnassi M.B. Almendro Candel J. Navarro Pedreño I. Gómez Lucas M. Hachicha |
| author_facet | S. Fatnassi M.B. Almendro Candel J. Navarro Pedreño I. Gómez Lucas M. Hachicha |
| author_sort | S. Fatnassi |
| collection | DOAJ |
| description | BACKGROUND AND OBJECTIVES: Boron is a micronutrient of high importance, both for plant development and normal growth. The range between boron deficiency and toxicity is very narrow, which makes boron unique among the essential micronutrients. Boron adsorption is one of the most important factors determining the release and fixation of this micronutrient, though its adsorption has not been widely studied in semiarid Tunisian soils. This study aims to improve knowledge of B adsorption process in calcareous salt-affected soils in semiarid areas. It equally focuses on the type of cation (monovalent and divalent) in function of the soil texture and time of shaking. These three latter factors influence boron adsorption, which also influence the availability for plants.METHODS: A study was carried out on boron adsorption at different shaking time intervals (1, 3, 6 and 9 hours) in two soils of different textures in the absence and presence of different background electrolytes solutions (0.02 N CaCl2, 0.02 N MgCl2 , 0.02 N sodium chloride and 0.02 N potassium chloride.FINDINGS: The soil-A (clay loam) adsorbed more boron than soil-B (sandy loam). Boron adsorption was the highest in Soil-A under the presence of potassium chloride, close to the mean values given when using calcium chloride. In Soil-B, it was found with calcium chloride background electrolyte. Minor boron adsorption was observed in both soils when boric acid solution was used without background electrolytes. Adsorbed boron showed significant differences with the shaking time in all treatments used with background electrolytes solutions, except for boron solution treatment without background electrolyte in both soils. As a comparison of divalent and monovalent cations, boron adsorbed content was higher with the solution containing calcium than in sodium chloride solution, due to the fact that calcium carbonate is an important boron adsorbing surface.CONCLUSION: This study reveals that the best conditions for maximum boron adsorption are defined by calcium chloride background electrolyte in this type of soil in a determined shaking time interval of 3 hours. This causes a low rate of boron assimilated by plants, which leads to the decrease of the crop yield and the agricultural production, and subsequently hurt the Tunisian national economy. |
| format | Article |
| id | doaj-art-640fa1316d524856822c377d49cc9393 |
| institution | Kabale University |
| issn | 2383-3572 2383-3866 |
| language | English |
| publishDate | 2022-10-01 |
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| series | Global Journal of Environmental Science and Management |
| spelling | doaj-art-640fa1316d524856822c377d49cc93932025-02-02T14:07:29ZengGJESM PublisherGlobal Journal of Environmental Science and Management2383-35722383-38662022-10-018451953210.22034/GJESM.2022.04.05249150Boron adsorption in semiarid Mediterranean soils under the influence of background electrolytesS. Fatnassi0M.B. Almendro Candel1J. Navarro Pedreño2I. Gómez Lucas3M. Hachicha4Department of Geology, Faculty of Sciences of Tunis, University of Tunis El Manar, 2092 El Manar, Tunis, TunisiaDepartment of Agrochemistry and Environment, Miguel Hernández University of Elche, Avd.de la Universidad SN, 03202 Elche, Alicante, SpainDepartment of Agrochemistry and Environment, Miguel Hernández University of Elche, Avd.de la Universidad SN, 03202 Elche, Alicante, SpainDepartment of Agrochemistry and Environment, Miguel Hernández University of Elche, Avd.de la Universidad SN, 03202 Elche, Alicante, SpainNational Institute of Rural Engineering, Waters and Forest, Carthage University, 2080 BP 10 Ariana, TunisiaBACKGROUND AND OBJECTIVES: Boron is a micronutrient of high importance, both for plant development and normal growth. The range between boron deficiency and toxicity is very narrow, which makes boron unique among the essential micronutrients. Boron adsorption is one of the most important factors determining the release and fixation of this micronutrient, though its adsorption has not been widely studied in semiarid Tunisian soils. This study aims to improve knowledge of B adsorption process in calcareous salt-affected soils in semiarid areas. It equally focuses on the type of cation (monovalent and divalent) in function of the soil texture and time of shaking. These three latter factors influence boron adsorption, which also influence the availability for plants.METHODS: A study was carried out on boron adsorption at different shaking time intervals (1, 3, 6 and 9 hours) in two soils of different textures in the absence and presence of different background electrolytes solutions (0.02 N CaCl2, 0.02 N MgCl2 , 0.02 N sodium chloride and 0.02 N potassium chloride.FINDINGS: The soil-A (clay loam) adsorbed more boron than soil-B (sandy loam). Boron adsorption was the highest in Soil-A under the presence of potassium chloride, close to the mean values given when using calcium chloride. In Soil-B, it was found with calcium chloride background electrolyte. Minor boron adsorption was observed in both soils when boric acid solution was used without background electrolytes. Adsorbed boron showed significant differences with the shaking time in all treatments used with background electrolytes solutions, except for boron solution treatment without background electrolyte in both soils. As a comparison of divalent and monovalent cations, boron adsorbed content was higher with the solution containing calcium than in sodium chloride solution, due to the fact that calcium carbonate is an important boron adsorbing surface.CONCLUSION: This study reveals that the best conditions for maximum boron adsorption are defined by calcium chloride background electrolyte in this type of soil in a determined shaking time interval of 3 hours. This causes a low rate of boron assimilated by plants, which leads to the decrease of the crop yield and the agricultural production, and subsequently hurt the Tunisian national economy.https://www.gjesm.net/article_249150_fcc5ecd80dcdea4053cb6f3a77c5715a.pdfdivalent cationsclaymonovalent cationsshaking timesoil texturetunisia |
| spellingShingle | S. Fatnassi M.B. Almendro Candel J. Navarro Pedreño I. Gómez Lucas M. Hachicha Boron adsorption in semiarid Mediterranean soils under the influence of background electrolytes Global Journal of Environmental Science and Management divalent cations clay monovalent cations shaking time soil texture tunisia |
| title | Boron adsorption in semiarid Mediterranean soils under the influence of background electrolytes |
| title_full | Boron adsorption in semiarid Mediterranean soils under the influence of background electrolytes |
| title_fullStr | Boron adsorption in semiarid Mediterranean soils under the influence of background electrolytes |
| title_full_unstemmed | Boron adsorption in semiarid Mediterranean soils under the influence of background electrolytes |
| title_short | Boron adsorption in semiarid Mediterranean soils under the influence of background electrolytes |
| title_sort | boron adsorption in semiarid mediterranean soils under the influence of background electrolytes |
| topic | divalent cations clay monovalent cations shaking time soil texture tunisia |
| url | https://www.gjesm.net/article_249150_fcc5ecd80dcdea4053cb6f3a77c5715a.pdf |
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