Plant Density and Dry Matter Yield of 'Ubon Stylo' {Stylosanthes guianensis) in an Oxisol of Puerto Rico

The focus of this research was to evaluate plant density and dry matter yield of 'Ubon Stylo' {Stylosanthes guianensis) (95% germination) at seeding rates of 5, 10, 15, and 20 kg/ha. 'Ubon Stylo' was planted in August 2007 at the Isabela Substation of the Agricultural Experimental Station, University of Puerto Rico. The aftermath (first harvest) was 100 days after establishment. The experimental design was a complete randomized block with four replicates for the seeding rates. Variables assessed were: 1) Ubon Stylo and weed density (number of emerged plants in 1 m2) and dry matter yield (DMY; kg/ha). There were significant differences (p