Distribution of Manganese Fractions in Soil under Long-term Tea Cultivation at Thai Nguyen Province, Vietnam


Citation

Hoang, Huu Chien and Dang, Van Minh and Nguyen, Huy Trung and Chu, Van Trung and Nguyen, Quang Thi and Nguyen, Duy Hai and Tanaka, Sota and Iwasaki, Kozo (2024) Distribution of Manganese Fractions in Soil under Long-term Tea Cultivation at Thai Nguyen Province, Vietnam. Malaysian Journal of Soil Science (MJSS) (Malaysia), 28. pp. 165-171. ISSN 1394-7990

Abstract

Manganese (Mn) serves as an essential micronutrient within the intricate nexus of soil-plant-microbial interactions, playing a pivotal role on various physiological processes crucial for optimal plant growth. Tan Cuong commune of Thai Nguyen province stands out as a distinctive tea production region in Vietnam, characterized by prolonged tea cultivation accompanied by intensive applications of chemical fertilizers, thereby exerting notable and discernible effects on the physicochemical properties of the soil. The objectives of this study were to investigate the distribution and fractionation of Mn in tea soils, with a specific focus on the prevailing context of soil acidification. The study involved a comprehensive analysis of six distinct Mn fractions within soil profiles under tea gardens and adjacent forested patches. The findings revealed a marked accumulation of specific Mn fractions in surface horizons, exhibiting a declining trend with increasing soil depth across the majority of the study sites. Notably, both tea and forest soils, the Entisols, in flat river plain area presented a special distribution of Mn fractions throughout the soil depth. The observed soil acidification resulting from tea cultivating practices was associated with an augmented solubility of Mn fractions that were previously inaccessible, facilitating plant absorption and contributing to leaching losses. The multifaceted interactions elucidated in this research furnish valuable insights for informed agricultural practices, thereby safeguarding the quality and productivity of tea plants amidst evolving environmental conditions.


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Abstract

Manganese (Mn) serves as an essential micronutrient within the intricate nexus of soil-plant-microbial interactions, playing a pivotal role on various physiological processes crucial for optimal plant growth. Tan Cuong commune of Thai Nguyen province stands out as a distinctive tea production region in Vietnam, characterized by prolonged tea cultivation accompanied by intensive applications of chemical fertilizers, thereby exerting notable and discernible effects on the physicochemical properties of the soil. The objectives of this study were to investigate the distribution and fractionation of Mn in tea soils, with a specific focus on the prevailing context of soil acidification. The study involved a comprehensive analysis of six distinct Mn fractions within soil profiles under tea gardens and adjacent forested patches. The findings revealed a marked accumulation of specific Mn fractions in surface horizons, exhibiting a declining trend with increasing soil depth across the majority of the study sites. Notably, both tea and forest soils, the Entisols, in flat river plain area presented a special distribution of Mn fractions throughout the soil depth. The observed soil acidification resulting from tea cultivating practices was associated with an augmented solubility of Mn fractions that were previously inaccessible, facilitating plant absorption and contributing to leaching losses. The multifaceted interactions elucidated in this research furnish valuable insights for informed agricultural practices, thereby safeguarding the quality and productivity of tea plants amidst evolving environmental conditions.

Additional Metadata

[error in script]
Item Type: Article
AGROVOC Term: tea
AGROVOC Term: entisols
AGROVOC Term: soil pH
AGROVOC Term: fractionation
AGROVOC Term: soil analysis
AGROVOC Term: manganese
AGROVOC Term: leaching
Geographical Term: Vietnam
Depositing User: Mr. Khoirul Asrimi Md Nor
Date Deposited: 23 May 2025 02:17
Last Modified: 23 May 2025 02:17
URI: http://webagris.upm.edu.my/id/eprint/2819

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