Testing of zeolite-glauconite - phosphorite mixtures for decrease of lead adsorption in plants
2000
Petkova, D. | Popandonova, S. (N. Poushkarov Institute for Soil Science and Agrochemistry, BG-1080 Sofia (Bulgaria)) | Popova, T. | Chakalov, K.
The input of zeolite-glauconite and zeolit-phosphorite compositions did not result in soil acidity neutralization but lead content of radishes decreased approximately twice compared to radishes grown on contaminated soil, which is due to their high ion exchange capacity and hemosorption. Lead input in soil has a mush stronger effect on its content in plants that on yield. The clearly expressed lead accumulation in radishes, calculated by the coefficient of biological accumulation, indicates the possibility to use them as a test-plant for defining lead contamination rate of soil.
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