KEDUNG FLETCHER; ANDING NYUAK; TAN PHEI YEE. PH MONITORING FOR LIQUID FERTILIZER MANAGEMENT IN BLACK PEPPER FARMING . INTERNATIONAL JOURNAL OF INNOVATION AND INDUSTRIAL REVOLUTION (IJIREV), [S. l.], v. 3, n. 6, 2024. Disponível em: https://gaexcellence.com/ijirev/article/view/3960. Acesso em: 4 jun. 2025.