Pengaruh Kompos Kulit Kopi dan NPK 16:16:16 terhadap Pertumbuhan dan Produksi Sorgum (Sorghum bicolor L.) Varietas Kawali di Ratun I

Abstract

This study aims to determine the response of growth and production of sorghum (Sorghum bicolor L.) Kawali Variety to the Provision of Coffee Peel Waste and NPK 16:16:16 Fertilizer in Ratun I. This research was conducted at Jalan Harmonika Baru, Padang Bulan Selayang II, Medan Selayang District, Medan with an altitude of ± 25 meters above sea level. This research was conducted from June 2023 to October 2023. The design used Ra ndomized Complete Bloc Design ( R C BD) consisting of 3 replicates with 2 treatments. Factor I coffee skin compost: 0 kg/plot, 3.5 kg/plot, 7 kg/plot, and 10.5 kg/plot. Factor II NPK 16:16:16 fertilizer: 0 g/planting hole and 20 g/planting hole. Based on the results of the research conducted that the provision of coffee skin compost has a si gnificant effect on plant height, stem diameter, number of tillers, 1000 seed production, seed production per sample. The application of NPK 16:16:16 fertilizer has an effe ct on stem diameter. The intera c tion of the treatment of coffee skin compost and NPK 16:16:16 fertilizer had a significant effect on plant height and crown fresh weight.