In order to maintain the specified soil moisture regimes, calculated amounts of water were added to the respective plots based on crop evapo- transpiration, which were calculated as described by Doorenbos and Pruitt (1992) and Singh and Russel (1981).
The A. flavus isolated from a peanut field by the laboratory of Suranaree University of Technology, Nakhonratchasima province, Thailand, was used to increase the inoculum load in the soil. A. flavus inoculum was multiplied on peanut meal and inoculated at 30 DAE in the 2003/04 season and before planting in the 2004/05 season at the rate of 375 kg ha