Materials and duration of mulching mediate soil and fruit quality in citrus orchard

作者：Lei Yang, Min Wang, Jianjun Yu, Shuang Li, Hai Siong Tan, Yang Chen, Juhong Liu, Shuai-Fei Ye, Jinhui He, Lin Hong · 发表于：Plant and Soil · 年份：2025 · DOI：10.1007/s11104-025-07725-8 · 被引用次数：3 · 研究领域：Irrigation Practices and Water Management、Plant Physiology and Cultivation Studies、Horticultural and Viticultural Research

Mulching is a prevalent agricultural practice in citrus orchards, yet the microbiological mechanisms underlying film mulching require further investigation. In this study, five mulching materials (traditional flat planting with no mulching (CK), black film mulching (B), reflective film mulching (R), corn stalk mulching (S), white film mulching (W)) and three mulching durations (3 months (starting in September), 4 months (starting in August) and 5 months (starting in July)) were utilized to investigate the influence on the soil stoichiometric characteristics, microbial community, and fruit qualities in Beni-Madonna tangor ( Citrus nanko × C. amakusa ) orchards. In summary, mulching treatments significantly enhanced both soil quality and fruit quality, a mulching duration of 5 months using corn straw emerged as the optimal combination. However, with the extension of film mulching time, the diversity of soil microorganisms and the abundance of bacteria showed a trend of increasing first and then decreasing, while the abundance of fungi gradually increased. Different mulching materials had substantial impacts on soil microecology. Mulching durations had a more significant effect on bacteria, while the type of mulching material had a greater impact on fungi. There was a strong correlation between dominant flora and soil properties as well as fruit quality. With the exception of Proteobacteria and Chytridiomycota, dominant microorganisms exhibited positive correlations with TSS, TA...