ALUMINUM IN PLANT TISSUE GROWN IN SOIL

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Abstract
The effects of contamination on measurements of aluminum in vegetative plant tissues grown in soil were investigated, and attempts were made to remove contamination by washing. Aluminum from field oats and a composite greenhouse tissue increased with increasing ignition temperatures up to 1000 C, whereas aluminum from growth-cabinet oats was independent of temperature above 500 C. Washing reduced the aluminum from field oats and gave fairly good agreement between the amounts at 500 and 1000 C, and adding soil to growth-cabinet tissues gave much larger amounts at 1000 than at 500 C. Washing reduced the aluminum from oat, soybean and buckwheat tissues which were contaminated with montmorillonite clay.

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