Effect of Bacterial Consortium and Rice Husk Charcoal to Control Downy Mildew in Corn (Zea mays L.)

Abstract

Background: The purpose of applying bacterial consortium and rice husk charcoal to corn plants is to determine the effect of the combination and whether it can control the intensity of downy mildew attacks and increase corn plant growth. Methods: This research was conducted at the experimental farm of the University of Muhammadiyah Malang. This research was conducted using two factors: the dose of rice husk charcoal application and the application of bacterial consortium with three replications using a randomized block design. The treatments were Charcoal husk (H): H5 = Charcoal husk @5 tons/ha, H10= Charcoal husk @10 tons, H15 Charcoal husk @15 tons/ha, Bacterial consortium (W): W0= without bacteria, WL = bacterial consortium 10 cc/l via foliar spraying, WS = bacterial consortium 10cc/l through soil, WLS = bacterial consortium 10cc/l through soil and foliar spraying Result: The results showed that the intensity of downy mildew attack on the combined application of the bacterial consortium and rice husk charcoal was lower than that of the no-combination treatment. The length and diameter of the plants that were treated with rice husk charcoal had a significant effect. Still, the application of the bacterial consortium had no effectand the number of leaves was not affected by the treatment.