This project contains the protocol, documentation, and supporting materials for a systematic review and planned meta-analysis evaluating the effects of biochar application on soil nutrient availability, plant nutrient uptake, and crop productivity in agricultural systems. The review follows the PRISMA 2020 guidelines and is structured according to the PICO framework. The project includes the review protocol, search strategies, eligibility criteria, data extraction procedures, risk-of-bias assessment, supplementary files, and future updates associated with the quantitative synthesis. This registration was created retrospectively prior to manuscript resubmission to improve methodological transparency and reproducibility.
LIMA et al. (Thu,) studied this question.
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