D. Agbo

Response of Selected Soil Enzyme Activities to Pulverized Costus afer Stem and Cow Dung Augmentation in Crude Oil–contaminated Soil

D. Agbo, K. T. Nwauche, S. C. Amadi & W. O. Kalu · Journal of Applied Life Sciences International · 2026

Crude oil contamination can alter soil biochemical functioning, and enzyme activities provide indicators of treatment-related microbial responses. This study investigated the combined effects of pulverised Costus afer stem and cow dung amendments on selected enzyme activities in...

Open access Research Article 10.9734/jalsi/2026/v29i5797

Combined Effect of Pulverized Costus afer Stem and Cow dung Amendment on Contaminants of Concern in Crude Oil–Contaminated Soil

K. T. Nwauche, D. Agbo & K. A. Okari · International Journal of Biochemistry Research & Review · 2026

This study investigated the combined effect of pulverised Costus afer stem and cow dung amendments on contaminants of concern (heavy metals, PAHs, and TPHs) in crude oil-contaminated soil. Non-polluted soil samples were obtained from farmland along Mini Orlu Road, near Ada George...

Open access Research Article 10.9734/ijbcrr/2026/v35i51153