APPLICATION OF A MAIZE CROP SIMULATION-MODEL IN THE CENTRAL REGION OFMALAWI

A computer crop simulation model of the growth and development of maiz e was validated using data sets obtained from field experiments run at various sites in the mid-altitude maize tent of central Malawi betwee n 1989 and 1992. The model was used to provide information concerning management options such as the timing and quantity of nitrogen fertili zer applications and to quantify the weather-related risks of maize pr oduction in the region. It was linked to a Geographic Information Syst em to provide information at a regional level that could ultimately be of value to policy makers and research and extension personnel.