This study aims to understand the characteristics and distribution patterns of soil phosphorus (P) forms in the tropical high‐P orchards under cover cropping and to explore the biotic and abiotic factors driving the changes in P forms. The study collected three kinds of soil (clean tillage [CK, control], Stylosanthes guianensis cover [SC, legume], and Cynodon dactylon (L.) Pers. cover [CC, grass]) from a mango orchard and determined P forms in the water‐stable aggregates and bulk soil, analyzed the environmental factors and the structure of the bacterial‐fungal community. Compared to CK, SC and CC have a significant positive influence on the forms and distribution of soil P, increase the content of organic P (Org‐P) and certain inorganic P forms (Al‐P and Fe‐P), and enhance the content of P within macroaggregates (>0.25 mm), thereby maintaining total P (TP) and Olsen‐P in the top 30 cm of soil, particularly for the SC treatment. SC and CC also improved acid phosphatase (ACP), and water‐stable aggregates while decreasing bulk density (BD) and exchangeable aluminium (Ale) in the topsoil (0–15 cm). Redundant and Pearson analysis revealed these factors significantly affected soil P availability. Moreover, SC and CC increased the relative abundance of Nitrospira, Candidatus‐Udaeobacter, Pseudolabrys, and ADurb.Bin063–1 in the topsoil (0–15 cm), and decreased the relative abundance of Occallatibacter. Redundant and Pearson analysis indicated that these bacterial communities are likely associated with the availability of P. Overall, cover cropping promoted the transformation and distribution of P forms by altering the physical, chemical, and biological environment of the soil, which was beneficial for the sustainable P management in tropical high‐P soils. This research offers practical insights into the use of cover crops as a tool for enhancing soil health and sustainable P management in tropical high‐P orchards.

中文翻译：

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间作牧草提高了土壤磷素的利用率，改善了芒果园酸性土壤的细菌属结构和关键细菌类群的丰度

本研究旨在了解覆盖种植热带高磷果园土壤磷（P）形态的特征和分布模式，探讨驱动P形态变化的生物和非生物因素。该研究收集了三种土壤（清洁耕作[CK，对照]，圭亚那柱花草覆盖[SC，豆类]，以及狗牙根(L.)个人。覆盖[CC，草]），并测定了水稳定性团聚体和土壤中的磷形态，分析了环境因素和细菌-真菌群落的结构。与CK相比，SC和CC对土壤磷的形态和分布有显着的正向影响，增加了有机磷（Org-P）和某些无机磷形态（Al-P和Fe-P）的含量，增强了大团聚体中磷的含量（>0.25毫米），从而将总磷（TP）和Olsen-P保持在土壤顶部30厘米处，特别是对于SC处理。 SC 和 CC 还改善了酸性磷酸酶 (ACP) 和水稳定性聚集体，同时降低了堆积密度 (BD) 和可交换铝 (Ale）在表土（0-15厘米）。冗余和皮尔逊分析表明这些因素显着影响土壤磷的有效性。此外，SC和CC增加了硝化螺菌属,候选-Udaeobacter,伪实验室， 和ADurb.Bin063–1表土（0-15厘米），并降低了相对丰度奥卡拉杆菌属。 Redundant和Pearson分析表明，这些细菌群落可能与磷的有效性有关。总体而言，覆盖种植通过改变土壤的物理、化学和生物环境促进了磷形态的转化和分配，有利于可持续发展。热带高磷土壤的磷管理。这项研究为利用覆盖作物作为增强热带高磷果园土壤健康和可持续磷管理的工具提供了实用见解。