Effect of application frequency of tauge extract and dosage of liquid organic fertilizer from mangrove leaf sap on growth and flower yield of butterfly pea

This study aims to determine the effect of the frequency of sprout extract application and the dosage of liquid organic fertilizer derived from mangrove leaf sap on the growth and yield of butterfly pea flowers. The butterfly pea is an ornamental vine with potential as a food and medicinal plant but still faces challenges related to low productivity in Indonesia. A Randomized Complete Block Design (RCBD) was used with two factors: organic fertilizer dosage (0, 100, 150, and 200 ml) and frequency of sprout extract application (every 0, 5, 10, and 15 days). A total of 60 experimental units were assessed, focusing on plant height, number of flowers, dry and fresh flower weight, as well as protein and flavonoid content. The results showed that the combination of organic fertilizer dosage and sprout extract application frequency had a significant effect on growth parameters. Treatment P4 (200 ml) and frequency H1 (every 5 days) produced the highest plant height (158.37 cm) and the greatest number of flowers (50). Additionally, certain treatments led to increased protein and flavonoid content, supporting the butterfly pea’s potential as a nutritional and medicinal resource. These findings are expected to provide practical recommendations for farmers to sustainably improve butterfly pea flower productivity.