Abstract
In a 24-year vegetation precision experiment based on acidic sod-podzolic sandy loam soil reclaimed with conversion chalk (CC) in a wide dose range, the effect of liming on the content of calcium available to plants in the soil and its translocation into rapeseed tissue was established. The results showed that rapeseed is an ecologically plastic plant species. An increase in the amount of chalk introduced from 0.1 to 3 full doses calculated by hydrolytic acidity led to an increase in the Ca concentration in rapeseed in the liming year from 0.81 to 3.14%. Empirical dependences of calcium concentration in soil and plants on the dose of chalk application have been developed. 3 approaches to the analysis of experimental data describing the relationship of calcium content in the soil with its accumulation in plant tissues are considered. It is shown that artificial averaging of the data on the calcium content in the soil with the same dose of meliorant in individual repetitions led to loss of information, which was reflected in the statistical characteristics of the constructed empirical models.
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