Промени в свойствата на почвата в резултат от използването на компостни смеси в различно съотношение (Bulgarian)

Changes in the properties of the soil as a result of using compost mixed in different ratio. (English)

Five natural products – vermiculite, glauconite, straw ash, wood biomass and pork fertilizer are presented for the study and evaluation of the compost mixtures in different proportions. The aim of the study is to assess the impact on soil properties in pot experiments based on the characterization and evaluation of the composite mixtures of natural products. A vegetation experiment was conducted to determine the impact of compost mixtures on soil changes. Tested crops are silage corn and lettuce. The experiments were carried out on the Aluvial meadow from the Montana region and the HaplicVertisol from the Sofia region. Chemical and agrochemical characterization of Alluvial soil and Smolnitsa on which are derived pot experiments found, that after harvesting the crops most Impact of the third and fourth mixture. In these mixtures show a strong increase the amount of assimilable potassium.This creates limitations on recommending greater rates of fertilization above 7%. Five compost mixtures are quality enhancer for use in the agricultural practice. To recommend a rule must be considered and economic opportunities of the manufacturer, sufficient amount of source components and others. [ABSTRACT FROM AUTHOR]

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