Growth of Sorghum Treated by AMF and OM on Hg Contaminated Soil

Abstract

Gold mining activities leave tailings containing high pollutants including Hg which can inhibit plant growth. To overcome this problem, the application of AMF and organic matter is carried out. The aim of the reserach was to know the effect of Arbuscullar Mycorhizal Fungi and various organic matter on the growth of Sorghum (Sorghum bicolor (L.) A polybag trial at Agrotechnology research station 768 m above sea level had been carried out using randomized block design two factors with factorial pattern and three replications. The first factor was Arbuscullar Mychorhizal Fungi dosage (without AMF inoculum, 5 g polybag-1 AMF inoculum,10 g polybag-1 AMF inoculum,15 g polybag-1 AMF inoculum). The second factor was the type of organic matter (without organic matter, Thitonia diversivolia weed bokhasi 30 t ha-1, humic acid 7.2 ml dissolved in 1.44 L water, Chromolaena odorata weed bokhasi 30 t ha-1). The result showed there was no interaction effect of AMF and various organic matter on root infection degree, plant height, and leaf area. Application of AMF 15 g polybag-1 and C. odorata weed bokhasi 30 t ha-1, respectively, succeeded in increasing the degree of root infection and growth parameters.