Abstract
The research was aimed at evaluating the growth and yield performance of tomato under different water regimes and different ricehusk biochar application rates. A trial was conducted during the 2022 dry season at Wudil in Kano State. The experiment was laid out in a Split Plot design. The experiment consisted of two factors; biochar at six different application rates (15, 13.75, 12.5, 11.25, 8.75 and 5tons/ha) and irrigation regimes (100, 50 and 25% irrigation). Which were combined to produce 18 treatments? Prior to planting, fifteen soil samples (0-15 cm) were collected randomly and bulked to obtained three composite soil samples for physical and chemical analysis using standard laboratory procedures. Growth and yield parameters were taken from 2WAT at 2 weeks intervals in each plot and. The result showed that aplication of biochar has a significant effect on crop growth and yield especially at 50% irrigation. Therefore it is recommended that 15tons/ha of rice husk biochar at 50% irrigation is very suitable for use by farmers in the study area.
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