Pemberian Pupuk Organik Arang Ampas Kelapa Terhadap Pertumbuhan Dan Hasil Tan…

Sweet potato productivity in Riau Province is relatively low despite high market demand. This study aimed to determine the effect of coconut husk charcoal application and identify the optimal dosage on the growth and yield of sweet potato plants. The research was conducted at the Experimental Garden of the Faculty of Agriculture, University of Riau. The experiment was arranged in a completely r…