| Penulis/Author |
RADEN FERIAN LEO M (1); Dr. Ngadisih, S.T.P., M.Sc. (2) ; Dr. Murtiningrum, S.T.P., M.Eng. (3); Dr. Katharina Keiblinger (4); Axel Mentler (5); Dr.nat.techn. Rizki Maftukhah, S.T.P., M.Sc. (6); Chandra Setyawan, STP., M.Eng., Ph.D. (7) |
| Abstrak/Abstract |
The cocoa bean production (quality and quantity) influenced by soil and climate characteristics as well as farming management (fertilizer, irrigation, drainage, etc). Soil characteristics such as texture and pH closely related to particles transportation from soil to all part of plants (root, stem, leaf, fruit). Cadmium (Cd) contamination is top issue of cocoa bean quality, because it may increase the risk of human health. This study was addressed to identify soil characteristics (texture, particle density, bulk density, pH) and to correlate its characteristics to cadmium content in aboveground of cocoa plantation in Sungailiat district of Bangka Island. Soil samples were taken from 12 villages in Sungailiat district. Three points each site of cocoa land in the village were selected diagonally, where the soil was taken from 0 to 10 cm and 10 to 20 cm. Plantation management (tree age, fertilizer, irrigation, drainage, pruning) was recorded from interview to the farmers. The methods used in measuring the Cd content were the AOAC method by using ICP-MS. The soil texture (silt, clay, sand), particle density, bulk density, organic content, and soil pH ranged from 1.61 to 16.89%, 16.24 to 47.98%, 47.27 to 82.15%, 2.33 to 2.75 gr cm-3, 0.81 to 1.13 gr cm-3, 1.44 to 5.28%, and 4.56 to 6.62, respectively. The Cd content in the soils ranged from not detected (< 0.0005 mg kg-1) to 0.18 mg kg-1. This result showed that 12 sites of cocoa farms in Sungailiat are below the critical limit of Cd in agricultural soils based on European Standard (3 mg kg-1). |
