

Teguh Adiprasetyo
University of Bengkulu, Indonesia


Zainal Muktamar
Department of Soil Science, Faculty of Agriculture, University of Bengkulu
Yudhi Harini Bertham
University of Bengkulu, Indonesia

Suwarno
Muhammadiyah University, Purwokerto, Indonesia

Abdul Rauf
Department of Soil Science & Agroecotechnology, Universitas Sumatera Utara, Medan, Indonesia