A dataset of soil physical and chemical properties, phosphorus fractions, and phosphorus- solubilizing microbial communities in wheat-sweet potato rotation fields under different treatments in Luhe District (2020)

The bioavailability of soil P is influenced by multiple factors, including soil properties, P fractions, microbial communities, and crop types. Analyzing changes in soil physicochemical properties, P fractions, and P-solubilizing microbial communities under different fertilization practices in crop rotation systems can reveal the mechanisms of P activation, fixation, and transformation, thereby contributing to improving P use efficiency.

The Luhe Monitoring Site in Nanjing is a nationally designated key monitoring point for non-point source pollution and represents a typical long-term positioning monitoring site for a sweet potato-wheat rotation system. This dataset is derived from this site, and includes soil P data collected after the harvest of wheat and sweet potato in 2020, as part of a long-term positioning experiment (involving 4 fertilization treatments) at the Jiangsu Cultivated Land Conservation Scientific Observation and Experiment Station, Ministry of Agriculture and Rural Affairs / National Agricultural Environment Liuhe Observation and Experiment Station. The dataset comprises 10 components: (1) experimental design of the long-term positioning trial; (2) fertilization details for different treatments in the long-term trial. (3) soil physicochemical properties after the harvest of wheat and sweet potato under different fertilization practices in 2020; (4) status of soil organic P fractions.