Scientists have developed a simpler and more affordable way to measure phosphorus that is bound to DNA in soil. This could help improve understanding of how soil microbes contribute to recycling phosphorus, which is essential for plant growth and sustainable farming. The method, described in a study published in the Journal of Agricultural and Marine Sciences, was developed by an international team of researchers from institutions like Sultan Qaboos University, the James Hutton Institute, and the Environment Authority of Oman. The technique was tested on 32 different soil types from across the United Kingdom. The new method avoids the use of complex enzyme treatments that were previously needed, making it less expensive and easier to use without sacrificing accuracy. However, a step called ultrafiltration is still required to separate DNA-bound phosphorus from other phosphorus-containing substances. This step is important for ensuring precise measurements of DNA-P, which is part of the organic phosphorus found in living microorganisms in the soil. The study found that DNA-P makes up only a small fraction of the total organic phosphorus in the tested soils. However, it was closely linked to several important soil properties, such as pH, the amount of phosphorus in microbial biomass, the level of organic matter, and the phosphorus dissolved in soil water. These results suggest that DNA-P is primarily associated with active, living microorganisms rather than long-term, stable phosphorus stores. This insight helps scientists understand the biologically active part of the phosphorus cycle. The improved method gives researchers a more practical tool to study the active phosphorus in soils and could help explore how microbial communities affect the availability of phosphorus to plants. As global agriculture faces pressure to use phosphorus more efficiently, better measurements of this nutrient may become increasingly important for maintaining soil fertility, managing nutrients, and supporting sustainable food production.