SUITABILITY OF MUNICIPAL SOLID WASTE COMPOST AT DIFFERENT STAGES OF MATURITY IN VEGETABLE CROP PRODUCTION
Nine month old MSW compost was a valuable component of the medium for plant cultivation while the less mature composts reduced plant stands and final yield of lettuce. In field production only 120 t ha-1 was a sufficient source of N for growth and yield of cabbage. For lettuce this fertilization resulted in a lower yield then where nitrogen fertilization at the rate of 70 kg N ha-1 was used. The contents of Pb, Cd, Ni and Cr in edible parts of both species supplied with MSW compost were similar to the unfertilized treatment.