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2022, № 6 (54) |
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ECOLOGY
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Stepanov A.V., Potapova V.A., Morev D.V., Vasenev I.I. |
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Ecological assessment of the influence of different composition of soil and grass mixture on the state of model lawns in Moscow condition |
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The paper presents the results of field experimental studies of model lawns with varying composition of soil and grass mixtures conducted at the Ecological Station of the Timiryazev Agricultural Academy in the Timiryazevsky district of Moscow with an ecological assessment of the effect of soil composition with a different ratio of peat, sand and loam on the growth of grass biomass. The conducted research has shown the real possibility of significant savings of peat (up to 50%) when creating peat-sandy soils without reducing the productivity of the grass stand formed on the lawn. However, a further decrease in the specific volume of peat in the created soil to one third of the total volume negatively affects the productivity of the lawn grasses, reducing it by 20-25%. The use of excavated loam extracted in the neighboring plots to the lawn to create lawn soils in addition to the peat-sand mixture, unfortunately, is not able to compensate for the decrease in soil productivity with a sharp reduction in the use of peat. Additionally, there are observed differences in the content of a set of heavy metals (Cu, Cr, Pb and Zn) with an increase in the proportion of sand and loam in the composition of lawn soil, and also when using deicing reagents.
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