MODIFIKASI UNSUR HARA SULFUR TERHADAP KARAKTER TANAMAN BAWANG MERAH (Allium ascalonicum L.) DI BUDIDAYA TERAPUNG

Abstract

Floating cultivation is a system created as an innovation that is able to overcome agricultural problems in areas with a geographical location of water. This research aims to determine the effect of sulfur nutrient modification on the characteristics of shallot plants (Allium ascalonicum L) in floating cultivation. The research was carried out in May 2023 at the research pond of the Faculty of Agriculture, Sriwijaya University. The method used in this research was a completely randomized design with sulfur applications including: S1 (0 kg ha-1), S2 (30 kg ha-1), S3 (60 kg ha-1), S4 (120 kg ha-1). 1), S5 (240 kg ha-1). Parameters observed in this study included leaf length (cm), number of leaves (strands), number of tillers (clumps), tuber diameter (cm), relative growth rate (g g-1 day-1), chlorophyll analysis (mg L-1 ). The results showed that sulfur nutrient modification could strongly predict relative growth rate (R2=0.72) and tuber diameter (R2=0.76), and could moderately predict leaf length (R2=0.59). tillers (R2=0.65), Chlorophyll (R2=0.68), can weakly predict the number of leaves (R2=0.46), thus obtaining an optimum sulfur estimate of 85-86 kg.