Anhui Agricultural Science Bulletin >
2026 , Vol. 32 >Issue 7: 37 - 41
DOI: https://doi.org/10.16377/j.cnki.issn1007-7731.2026.07.010
Effects of biochar on soil enzyme activity and fruit quality of facility-grown strawberries
Received date: 2025-05-13
Online published: 2026-04-14
This paper summarized the regulatory mechanisms by which biochar improves strawberry fruit quality, focusing on soil enzyme activity, soil microbial community structure, and fruit quality aspects. In terms of soil enzyme activity, biochar enhances nitrogen transformation by increasing soil urease activity; boosts phosphatase activity to effectively improve the conversion of soil organic phosphorus; increases catalase activity, thereby reducing the accumulation of reactive oxygen species (ROS) in strawberry roots, protecting cell membranes and functional proteins from oxidative damage, and effectively alleviating oxidative stress; and raises invertase activity, accelerating carbon metabolism and promoting the turnover of the soil organic carbon pool, providing a stable carbon source for strawberry roots. Regarding soil microbial community structure, biochar optimizes soil pore structure, improves soil water and nutrient retention capacity, regulates the soil microbial community structure, enriches beneficial microbial groups such as Proteobacteria and Actinobacteria, and enhances the ecological functions of the soil. Concerning fruit quality, biochar improves soil physicochemical properties and photosynthetic efficiency, promoting the synthesis of photosynthetic products in leaves and the transport and accumulation of sugars to the fruits. Simultaneously, it regulates the activity of key enzymes involved in organic acid metabolism, reducing the content of citric acid and malic acid in the fruit, thereby increasing the soluble sugar content and sugar-acid ratio of strawberries. It also promotes the proliferation of beneficial soil microorganisms, enhances plant secondary metabolism, facilitates the accumulation of flavor compounds, and ultimately achieves the improvement of fruit quality. This paper elucidates the role of biochar in improving strawberry quality through a multi-level linkage effect involving “soil enzyme activity - microbial community - nutrient cycling - plant metabolism”, providing a basis for soil improvement and fruit quality regulation in facility strawberry cultivation.
Key words: biochar; strawberry; soil enzyme activity; fruit quality; soil improvement
Hu Hui , Tian Na , Wu Rendun , Yang Ling , Ran Wenting , Zhao Zhiming . Effects of biochar on soil enzyme activity and fruit quality of facility-grown strawberries[J]. Anhui Agricultural Science Bulletin, 2026 , 32(7) : 37 -41 . DOI: 10.16377/j.cnki.issn1007-7731.2026.07.010
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