Fig. 9

Control negative and positive (a + b), treated with 1.5 and 3% of leaflet biochar (c + d), treated with 1.5 + 3% petiole biochar (e + f), treated with 1.5 + 3% fruits biochar (g + h), treated with 1.5 + 3% leaflet biochar + Hoagland (i + j), treated with 1.5 + 3% petiole biochar (k + l), and treated with 1.5 + 3% of fruits biochar (m + n) plant of Ocimum basilicum.