An evaluation of shrub legumes as forage on post-tin mining at Bangka Island Indonesia

Three species of shrub legumes (Clitoria ternatea, Stylosanthes guiyanensis, and Arachis pintoi) were grown for 4 years on post-tin mining with pH soil 4.7 Bangka Island Indonesia. Leaf yields were recorded 17 times harvest during the 4 years period. Mineral and plant quality in the laboratory was recorded at the last harvest. The objective of the study was to evaluate shrub forage at post-tin mining. Measurements were modeled on leaf samples from the first harvest taken 8 months after transplanting and the interval harvest was 2 months. The results showed the highest leaf yield of S. guiyanensis and the yield of this species was more stable for 4 years than other species. The highest leaf average production was recorded for S. guiyanensis over the 4-year period on fresh and dry yields of 11.70 ton ha−1 harvest−1 and 4.68 ton ha−1 harvest−1. Mineral analysis of the leaf indicated highest C. ternatea were crude protein (19.79%), energy (4163 cal), ash (7.47%), neutral detergent fiber (NDF 59.65%) and acid detergent fiber (ADF 31.18%) are lowest and to be adequate for animal production in all species on pos-tin mining as source forage. It was concluded that Stylosanthes had the highest forage production and used reclamation post-tin mining.