Effect of potassium chloride on the emission of carbon dioxide from chernozem

The dynamics of carbon dioxide emission from the soil is traced over nine months by the method of microbial succession initiation for characterizing the microbial activity of soil. A twofold decrease of carbon dioxide emission from the fertile chernozem is observed when potassium chloride is used as a fertilizer. The contents of available nitrogen and especially phosphorus decrease in a pot experiment with barley at standard rates of fertilizer application. The reduction in the content of soluble salts (primarily chlorides and nitrates) in the nonsaline soil after leaching increases the microbial activity.