Energy Value, Economic and Ecological Meaning of Perennial Leguminous and Legume-cereal Agrocoenoses in the Central Non-Black Soil Area of Russia

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The research is important because it is necessary to get the perennial leguminous grasses and the legume-cereal grass mixtures involved in the wide production. In this connection, this paper is aimed at discussing evident advantages of growing the perennial leguminous grasses and the legume-cereal grass mixtures in terms of energy, protein and economic efficiency, their use as the main link during the agriculture biologization an ecologization in the Central Non-black soil area of Russia.The major method of researching this problem was the field experiments carried out using the facilities of Kaluga Agriculture Research Institute, which allowed implementing the comprehensive comparison of the annual and perennial fodder crops and their mixtures. The paper covers comparative data on energy and monetary expenditures on growing the annual and perennial fodder crops and their mixtures, recoupment of them by harvesting the gross and exchange energy. The energy and economic efficiency of producing the exchange energy and crude protein during growing the various fodder crops and mixtures was calculated. Advantages of growing the perennial leguminous grasses and the legume-cereal grass mixtures in the Central Non-black soil area of Russia were substantiated experimentally. The paper materials are of practical value to the plant growing branch in selecting the crops to be grown and forming the crop rotations in Russia’s Central part.