Abstract
The data of the survey of sod-podzolic soils under industrial gardens on the weathering crust of trepels and flanks and on water-glacial deposits underlain by siliceous rocks are presented. The main reason for the op-pression and death of trees is a sharply acidic reaction deeper than 50 cm (pHKCl < 3.9), the exchange Al content is above the toxicity threshold (>0.9 mmol /100g of soil). Soils on homogeneous sediments are characterized by a density of 0.6-0.8 g / cm3, an active moisture range of 25-30%, an average content of exchangeable Ca and Mg, soils on binomial deposits – a density of 0.9-1.3 g / cm3, an active moisture range of 5-15%, a low content of exchangeable Ca and Mg. Before laying perennial plantings, it is neces-sary to introduce dolomite flour with a high Mg content into planting pits, the approximate dose is 15-25 t / ha. In gardens on homogeneous rocks, moisture–charging irrigation is possible, on binomial deposits, drip irrigation or fertigation is better. Sod-podzolic soils on homogeneous sediments are diagnosed by a power-ful 50-70 cm A2 horizon. In the profile of soils on binomial deposits under the A2 horizon with a thick-ness of 25-30 cm, the Bf horizon of ochre color is formed.
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