Experimental dataset on soil and tomato yield parameters associated with biochar treatments

This dataset contains experimental data used to evaluate the effect of biochar on soil properties and tomato yield. The study assesses biochars derived from date palm, maize, and potato residues, applied at rates of 0, 2, 4, 8, and 16 t·ha⁻¹. Measured variables include soil physicochemical and structural properties, soil carbon content, nutrient availability, and tomato yield. The dataset also includes treatment type and replicate information. Data were collected under field conditions using a completely randomized design.