Data.xlsx

The experiment was conducted in two cropping seasons (major and minor seasons) in 2017/2018. In both seasons, two rates of biochar 500g (8.33 t/ha) and 1000g (16.67 t/ha) were applied. The biochar was spread on the soil surface manually and incorporated into the soil with a hand fork. The rates for the inorganic nitrogen fertilizer were 0g (0 kg N/ha) as control, 1.88g (31.3 kg N/ha), 3.75g (62.5 kg N/ha), 5.63g (93.83 kg N/ha), and 7.5g (125 kg N/ha) as the recommended rate. In addition, the recommended basal rate of 7.5g (125 kg P₂O₅/ha) and 10g (166.67 kg K₂O/ha) in the form of triple superphosphate and muriate of potash respectively, were applied.