Boron Adsorption and Interaction With Phosphate in a Volcanic Soil From the Humid Tropic

IF 3.3 3区农林科学 Q1 AGRONOMY

Journal of Plant Nutrition and Soil Science Pub Date : 2026-06-03 Epub Date: 2025-08-16 DOI:10.1002/jpln.70012

Róger A. Fallas-Corrales, Juan C. Mendez, Johannes C. L. Meeussen

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引用次数: 0

Abstract

Background

Boron (B) deficiency is a major constraint for crop production in volcanic soils from humid tropical regions. Its availability can be influenced by adsorption to short-range order (SRO) minerals and soil organic matter (SOM) and by interactions with other nutrients.

Aims

To analyze the adsorption behavior and surface speciation of B in a volcanic soil from the humid tropics, including its interaction with phosphate (PO₄), and to test the applicability of a mechanistic multi-surface geochemical model for describing these interactions.

Methods

Boron adsorption isotherms were determined on a volcanic soil using two electrolyte solutions (NaNO₃ or CaCl₂) and two conditions of added PO₄ (0 and 1.6 mM). The results were interpreted using an advanced multi-surface ion adsorption model that combines the charge distribution multisite ion complexation (CD-MUSIC) model for describing ion adsorption to SRO minerals and the nonideal competitive adsorption (NICA)–Donnan model for adsorption to SOM.

Results

The model simulations, conducted in a fully predictive scheme, showed an excellent agreement with the experimental B adsorption data in both NaNO₃ and CaCl₂ solutions, even at micromolar B concentrations. Under natural soil pH conditions, SRO minerals were the dominant surfaces controlling B adsorption, whereas SOM played a minor role. The addition of PO₄ had a limited effect on B adsorption at low B concentrations; however, a moderate competitive effect was observed at higher B concentrations.

Conclusions

This study provides mechanistic insights into B adsorption and speciation in volcanic soils, emphasizing the importance of SRO minerals as binding surfaces and the limited role of phosphate competition. These findings can contribute to optimize B management in volcanic soils systems from the humid tropics.

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湿润热带火山土中硼的吸附及其与磷酸盐的相互作用

背景硼(B)缺乏是潮湿热带地区火山土壤作物生产的主要制约因素。它的有效性受到对短程有序（SRO）矿物质和土壤有机质（SOM）的吸附以及与其他养分的相互作用的影响。目的分析湿润热带火山土中B的吸附行为和表面形态，包括其与磷酸（PO4）的相互作用，并验证多表面地球化学模型描述这些相互作用的适用性。方法采用两种电解质溶液（NaNO3或CaCl2）和添加PO4（0和1.6 mM）两种条件，测定火山土对硼的吸附等温线。采用先进的多表面离子吸附模型对结果进行了解释，该模型结合了描述离子对SRO矿物吸附的电荷分布多位点离子络合（CD-MUSIC）模型和描述SOM吸附的非理想竞争吸附(NICA) -Donnan模型。结果在完全预测的情况下，模型模拟结果与NaNO3和CaCl2溶液中的B吸附实验数据非常吻合，即使是在微摩尔B浓度下。在自然土壤pH条件下，SRO矿物是控制B吸附的主要表面，而SOM起次要作用。PO4的加入对低浓度B的吸附影响有限；然而，在较高的B浓度下，观察到适度的竞争效应。本研究为火山土壤中B的吸附和物种形成提供了机制见解，强调了SRO矿物作为结合表面的重要性以及磷酸盐竞争的有限作用。这些发现有助于优化湿润热带地区火山土壤系统的B管理。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Plant Nutrition and Soil Science 农林科学-农艺学

CiteScore

4.70

自引率

8.00%

发文量

审稿时长

8-16 weeks

期刊介绍： Established in 1922, the Journal of Plant Nutrition and Soil Science (JPNSS) is an international peer-reviewed journal devoted to cover the entire spectrum of plant nutrition and soil science from different scale units, e.g. agroecosystem to natural systems. With its wide scope and focus on soil-plant interactions, JPNSS is one of the leading journals on this topic. Articles in JPNSS include reviews, high-standard original papers, and short communications and represent challenging research of international significance. The Journal of Plant Nutrition and Soil Science is one of the world’s oldest journals. You can trust in a peer-reviewed journal that has been established in the plant and soil science community for almost 100 years. Journal of Plant Nutrition and Soil Science (ISSN 1436-8730) is published in six volumes per year, by the German Societies of Plant Nutrition (DGP) and Soil Science (DBG). Furthermore, the Journal of Plant Nutrition and Soil Science (JPNSS) is a Cooperating Journal of the International Union of Soil Science (IUSS). The journal is produced by Wiley-VCH. Topical Divisions of the Journal of Plant Nutrition and Soil Science that are receiving increasing attention are: JPNSS – Topical Divisions Special timely focus in interdisciplinarity: - sustainability & critical zone science. Soil-Plant Interactions: - rhizosphere science & soil ecology - pollutant cycling & plant-soil protection - land use & climate change. Soil Science: - soil chemistry & soil physics - soil biology & biogeochemistry - soil genesis & mineralogy. Plant Nutrition: - plant nutritional physiology - nutrient dynamics & soil fertility - ecophysiological aspects of plant nutrition.