Kiss S A, Dombovári J, Oncsik M
Borsod Chemical Works, Kazincbarcika, Hungary.
Magnes Res. 1991 Mar;4(1):3-7.
Cadmium and aluminium ions - especially in acid soils - are taken up by plants which then become poisoned by them. As a result the roots of the plants become deformed, and the green parts become chlorotic and underdeveloped. The yield will thus be sharply reduced. Culture fluid and culture pot experiments have shown that the toxic effects can be inhibited by magnesium. Investigations have proved that the inhibition is competitive and is based on the antagonism of cadmium and aluminium towards magnesium. Toxic cadmium and aluminium concentrations in the soil can be decreased by the use of non-acidifying fertilizers, and inhibited or prevented with fertilizers containing magnesium, eg Agronit (28% N and 2.5% Mg) or Kardonit (28% N and 5.5% Mg) (Borsod Chemical Works). Cadmium and aluminium taken up by plants are equally detrimental to animal and human organisms through the nutrition chain. For example cadmium may cause sterility, while aluminium may be implicated in Alzheimer's and Parkinson's disease. Magnesium moderates the effects of these two toxic elements in the human organism as well as in plants.
镉离子和铝离子——尤其是在酸性土壤中——会被植物吸收，进而使植物中毒。结果，植物的根系会变形，绿色部分会出现缺绿症状且发育不良。因此产量会大幅降低。培养液和培养盆实验表明，镁可以抑制这种毒性作用。研究证明，这种抑制作用具有竞争性，其依据是镉和铝对镁的拮抗作用。使用非酸化肥料可以降低土壤中有毒镉和铝的浓度，而含镁肥料，如Agronit（28%氮和2.5%镁）或Kardonit（28%氮和5.5%镁）（博尔绍德化工厂生产）可以抑制或预防这种毒性。植物吸收的镉和铝通过食物链对动物和人类有机体同样有害。例如，镉可能导致不育，而铝可能与阿尔茨海默病和帕金森病有关。镁在人类有机体以及植物中都能减轻这两种有毒元素的影响。
