VARIATIONS IN RESPONSE OF TWO PLANTS AND TWO MICROALGAL SPECIES TO THE DIFFERENT CONCENTRATIONS OF CEMENT KILN DUST

Cement kiln dust (CKD) can use as fertilizer in agriculture and as media for algal growth. In this study, different concentrations of CKD (0.005, 0.01, 0.05, 0.1 and 0.5 gm.100 ml -1 ) used for plants crop growth, and (0.0001, 0.0005, 0.001, 0.005 and 0.01 gm.100 ml -1 ) concentrations of CKD for algal growth. The study shown that, the germination and growth of both faba beans (Vicia faba) and barley (Hordeum vulgare) improved by low concentrations (0.005 and 0.01 gm.100 ml -1 ) of CKD. Also, the concentration (0.001 gm.100 ml -1 ) of cement kiln dust can be used instead of the algal growth media (BG11) for Oscillatoria sp. and Chlorella sp. cultures.