Figure 4. Effect of wood ash and compost on soil CEC (means ± SD, n = 4; Tukey HSD, α = 0.05)

From

Effects of Household Waste Compost and Wood Ash on the Physico-Chemical Properties of A Tropical Sandy Soil: Case of A Ferralitic Soil from Brazzaville (Congo)

Ngoulou J.R.C., Mbemba K.M., Okeni-Boba G.J., Diele Mouko G.R., Pandi Moussounda R.J., Mounzika Mbombi L.F., Bakala Ndoulou E.P.

American Journal of Environmental Protection. 2026, 14(2), 30-39 doi:10.12691/env-14-2-2