Research Article
1.
Biochar and clinoptilolite zeolite on selected chemical properties of soil cultivated with maize (Zea mays L.)
Siti Wardah ZAİDUN
Mohamadu Boyie JALLOH
Azwan AWANG
Lum Mok SAM
Normah Awang BESAR
Baba MUSTA
Osumanu Haruna AHMED
Latifah OMAR