Effect of Increasing Rates of Conversion Chalk on the Accumulation of Calcium and Stable Strontium in Above-Ground Organs of Spring Barley
The translocation of calcium and strontium to the above-ground organs of barley grown on an acid soddypodzolic soil limed with a strontium-containing ameliorant in a wide range of application rates was studied. It was found that the transition of calcium to barley straw and grain and the transition of strontium to straw followed a barrierless mechanism. The limit levels of accumulation of these elements in the above-ground organs of plants were reached in the range of ameliorant application rates corresponding to 1.8-2.5 total acidity. It was found that the input of strontium to barley grain followed a barrier mechanism. The content of strontium in grain increased in the treatment with chalk liming according to 1.6 total acidity and was maximum in the treatment with liming according to 1.9 total acidity. Coeffi cients of strontium accumulation by barley plants were determined. The ratios between the Ca and Sr contents in grain and straw were calculated.