Published in Scientific Papers. Series A. Agronomy, Vol. LXII, Issue 1
Written by Irina SENICOVSCAIA, Valerian CERBARI
Statistical parameters of the biological properties of ordinary chernozem under ifferent land management in the southern zone of the Republic of Moldova have been elaborated. The number of umbricidae family and total invertebrates in conditions of no-tillage and vetch as a green manure increased n average by 3.0-6.0 and by 2.2-2.5 times respectively compared with plowing. The base mass of invertebrates and arthworms in the ordinary chernozem under arable is concentrated in the 0-10 cm layer, in conditions of no-tillage nd green manure treatment - in the 0-20 and 0-30 cm layer. The application of conservative tillage and green fertilizers led to the restoration of the total number of invertebrates and the Lumbricidae family, the annual growth rate is of 36.1 nd 12.4 ex m-2 accordingly. The positive action of no-tillage and vetch as a green fertilizer on biota is manifested by he growth of microbial biomass on average by 13.9% and activation of dehydrogenase, polyphenoloxidase and peroxidase by 5.3%, 28.9% and 6.4%. Soil biological parameters did not reach the level of the soil under natural egetation.
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