Effects of Organic Amendments Produced from Agro-Wastes on Sandy Soil Properties and Black Pepper Morpho-Physiology and Yield. - Sulok, Kevin Muyang Tawie; Ahmed, Osumanu Haruna; Khew, Choy Yuen; Zehnder, Jarroop Augustine Mercer; Lai, Pei Sing; Jalloh, Mohamadu Boyie; Musah, Adiza Alhassan; Awang, Azwan; Abdu, Arifin (Agronomy, 2021)