Pengaruh Pemberian Pupuk Organik terhadap Pertumbuhan dan Produksi Beberapa Varietas Sorgum (Sorghum bicolar L.)

Abstract

This study aims to determine the effect of growth and production of sorghum plants (Sorghum bicolor L.) with the application of petroganic fertilizer doses. The research was conducted on Jl Terompet, Medan Selayang, Medan City, North Sumatra, from March to May 2024. This study employed a Split-Plot Design (SPD) with two treatment factors and three replications. The first factor is the sorghum variety (Bioguma and Samurai), and the second factor is the fertilizer dose (0, 174, 274, 374 grams). The observed parameters include plant height, stem diameter, flowering age, production per sample, production per plot, ear weight per sample, ear weight per plot, and weight of 1000 seeds. The results show that the variety treatment had a significant effect on plant height (9 MST), stem diameter, flowering age, production per sample, production per plot, ear weight per sample, ear weight per plot, and weight of 1000 seeds. The petroganic fertilizer treatment also significantly affected plant height (9 MST), stem diameter, flowering age, production per sample, production per plot, ear weight per sample, ear weight per plot, and weight of 1000 seeds. The best treatment is found at a dose of 374 g of organic fertilizer and the best variety is the Bioguma variety.