Pengaruh Pemberian Pupuk Vermikompos Terhadap Pertumbuhan dan Produksi Dua Variates Sorgum (Sorghum bicolor L.) di Ratun I

Abstract

This study aims to determine the growth and production of 2 Sorghum Varieties by giving several doses of vermicompost fertilizer in ratoon 1. This research was conducted at the Land of the Meteorology, Climatology and Geophysics Agency Class 1 Climatology Station in Sumatera Utara from September to December 2023. This study used the method of Separate Plots Design (RPT) with two treatment factors and three replications. The first factor was sorghum varieties (Bioguma and Samurai 2) and the second factor was the dose of vermicompost fertilizer (0, 5, 10, 15 tons/ha). The parameters observed were plant height, stem diameter, flowering age, seed weight per sample, seed weight per plot, panicle weight per sample, panicle weight per plot, 1000 seed weight. The results showed that the treatment of varieties had a significant effect on plant height (2-9 weeks after planting), flowering age, seed weight per sample, seed weight per plot, panicle weight per sample, panicle weight per plot, weight of 1000 seeds. The treatment of vermicompost fertilizer had a significant effect on flowering age, seed weight per sample, seed weight per plot, panicle weight per sample, panicle weight per plot, 1000 seed weight. The interaction between the application of vermicompost fertilizer with two sorghum varieties had a significant effect on the parameters of seed weight per sample, seed weight per plot, and 1000 seed weight. The best combination is the use of Bioguma varieties and a fertilizer dose of 10 tons/ha.