Producing carbonic acid by soddy podzolic soil depending on forms of nitrogenous fertilizers and loosening

Kidin V.V.; Ba M.R.

Izvestiya Timiryazevskoi Sel'skokhozyaistvennoi Akademii 1: 50-55


Accession: 007689772

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The effect of ammonium and nitrate nitrogenous fertilizers on biological activity of periodically loosened soddy-podzolic soil was studied in model laboratory experiments. It has been found that application of ammonium sulfate increased CO2 production by mid- and well-cultivated soil and produced practically no effect on biological activity of poorly cultivated soil. Application of calcium saltpeter increased CO2 production by all kinds of soils. Periodic loosening resulted in more intensive mineralization of soil organic matter than application of nitrogenous fertilizer.