Effect of Fungi and Manure on Cadmium Content and Biomass of Maize Grown in Cadmium Contaminated Tailing from Bangka Indonesia

Abstract

Cadmium (Cd) contamination form tailings disposal that occur in tin mining in Bangka cause a serious soil health problem. One of the ways to reduce Cd concentration in soil is bioremediation. The research was conducted to determine the influence of fungi and cattle manure on dry weight and Cd content of maize as well as fungi population in the rhizosphere of maize grown in tailing collected from tin mining area in Bangka. Green house research was set up in Factorial Randomized Block Design. Maize hybrid P21 was grown for six weeks in tailing contaminated by CdCl2.0,5H2O up to 8 mg kg-1 and inoculated with Humicola sp. or Fusarium sp. without and with several dose of cattle manure. Interaction effect between fungi and cattle manure clearly affect the rhizosphere fungal population, however did not give any significant effect to dry weight and Cd content. Application of Fusarium sp. 107 spores mL-1 with manure of 22 g pot-1 lead to increased fungal population. There was an independent effect of cattle manure to decrease Cd content and increase dry weight of maize.