Abstract
Three hydromulch planting techniques (hydroseeding, hydromulch capping of seedlings, and hydroplanting of seedlings) for Fimbristylis cymosa R. Br. (mau‘u ‘aki‘aki; Cyperaceae) were evaluated on compost-filled plots for the first 6 mo of planting. Hydro seeding comprised spraying a seed–mulch slurry at a rate of 437 live seeds/m2 (41 seeds/ft2) and 2200 kg/ha (1963 lb/ac) paper/straw mulch. Hydromulch capped seedlings comprised applying seedlings by hand to the surface at a rate of 199 plants/m2 (18 plants/ft2) and covering them with mulch at a rate of 4400 kg/ha (3926 lb/ac). Hydroplanted seedlings comprised spraying a seedling–mulch slurry at 199 plants/m2 (18 plants/ft2) with a mulch rate of 4400 kg/ha (3926 lb/ac). Hydroseeded plots attained the highest plant counts and exhibited the same monthly percent visual cover as hydromulch capped seedlings. Hydromulch capping of seedlings is a less-efficient planting method, as it required more time and resources for seedling preparation compared to hydroseeding. Results of the study support the recommendation of hydroseeding for large-scale planting and establishment of F. cymosa .
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