Effect of Sprinkling on the Macrostructure of a Typical
Chernozem

E. V. Dubovik

All-Russia Research Institute of Farming and Soil Erosion Control, ul. Karla Marksa 70b, Kursk, 305021 Russia

E-mail: vnizem@kursknet.ru

Received April 8, 2010

Abstract—The alteration of the typical chernozem structure under long fallow, black fallow, and perennial
grasses under the impact of sprinkling were studied. The changes in the macrostructural status of the soil were
objectively estimated from the results of two coupled analysis methods. It was found that the most important
changes in the aggregate-structural status occurred in the soil under black fallow and perennial grasses; long-
fallow lands were the most stable and resistant to external impacts. Soil classes characterizing the quality of the
soil structure in terms of the aggregation and water stability were proposed. As a result of the sprinkling, the soil struc-
ture quality of the long-fallow land changed from good (classes IVa–IVb) to medium (IIIb–IIIc), that of the black
fallow changed from good and medium (classes IVa–IIIb) to poor (classes IIa, IIb, and IIc), and the structure
quality of the soil under perennial grasses changed from medium and poor (IIIb–IIb) to poor and even unsatis-
factory (classes IIb–Ic).

DOI: 10.1134/S1064229312010024

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