Skripsi
PERTUMBUHAN DAN HASIL BAWANG MERAH (ALLIUM ASCALONICUM L.) VARIETAS TAJUK TERHADAP DOSIS PUPUK KALIUM SULFAT PADA BUDIDAYA TERAPUNG
Shallot (Allium ascalonicum L.) is one of the strategic horticultural commodities in Indonesia; however, its productivity remains relatively low due to nutrient limitations and suboptimal land use. This study aimed to evaluate the effect of different doses of potassium sulfate (K₂SO₄) fertilizer on the growth and yield of shallot cultivar Tajuk under a floating cultivation system using raft bottles. The experiment was conducted at the Embung of the Faculty of Agriculture, Sriwijaya University, using a Randomized Block Design (RBD) with a single factor consisting of four K₂SO₄ doses: P0 (control), P1 (0.15 g/polybag), P2 (0.30 g/polybag), and P3 (0.50 g/polybag), each with three replications. The observed parameters included number of leaves, plant height, leaf greenness level, chlorophyll content, leaf area, leaf age, number of tillers, number of bulbs, bulb length, bulb diameter, bulb volume, fresh bulb weight, bulb dry weight, fresh shoot weight, shoot dry weight, root length, and supporting environmental data. The results showed that most growth and yield parameters of shallot were not significantly affected by potassium sulfate application. However, significant effects were observed on the number of tillers with P3 at 2 WAP, leaf greenness with P1 at 7 WAP, leaf chlorophyll content with P0 at 4 WAP, and bulb length with P2. Overall, P2 (0.30 g/polybag) tended to produce better plant height and bulb length, whereas P3 performed better in the number of tillers and bulbs.