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Northwest Ethiopia field study analyzes the integrated application of biochar, vermicompost, and inorganic N-P nutrients on acidic soils over two growing seasons (2023/24–2024/25). Research by Habtamu Tadele quantifies effects on soil bulk density, gravimetric moisture content, leaf area index, harvest index, and grain yield. The dataset supports a predictive model with an R² of 0.906 for yield based on soil and crop parameters.
Primary data file is in DOCX format, which may require conversion for analysis. License is CC-BY-4.0, requiring attribution.