Demydenko O. V.
Pages: 10-16.

Full article: 

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Abstract

The purpose. To analyze long-term series of climatic parameters and series of dynamics of productivity of cereal crops (winter wheat, corn) depending on system of adaptive measures (fertilizing, machining), to determine their classification attributes according to fractal properties, to fix basic trends of further development and realization of the forecast for the future in agrocnosises of the Central Left-bank Forest- steppe. Methods. Field experiment and weather observation, fractal assessment of the statistical information. Results. Except for the annual cycle, 12-years climatic cycle caused by solar activity is precisely manifested. Cyclicity of change of productivity of cereal crops makes 4 — 5 years. Conclusions. Climate fluctuation, in particular, increase of temperature in conditions of central part of Left-bank Forest-steppe promotes increase of yield of new hybrids of corn and winter wheat for all period of probes.

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Key words: climatic parameters, productivity of cereal crops, fractal analysis, Hurst’s index, soil cultivation, agrocenosis.

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