Abstract: To address common issues during the melon seedling, vine extension, and fruit expansion stages—such as weak seedlings, poor root development, yellowing leaves, insufficient flower buds, and high incidence of cracked or misshapen fruits—drip irrigation with ULTRALGAE Plus resulted in uniform, robust seedlings, well-developed vines, dark green glossy foliage, strong root systems, abundant flower bud differentiation, and well-shaped, fully netted fruits. ULTRALGAE Plus promotes root growth, strengthens vines, enhances flowering and fruit development, and improves fruit marketability, making it an ideal functional fertilizer for key growth stages of melons.