Effect of preparation based on the bacteria <i>Lactobacillus buchneri</i> on the productivity of clover and timothy mixture

Abstract

Relevance and methodology. Legume-grass mixtures are a source of complete feed for dairy cattle due to good digestibility and balance of protein, carbohydrates, amino acids and vitamins. We studied the effect of a microbiological fertilizer («Naturost-Aktiv») based on live microorganisms Lactobacillus buchneri on the productivity and nutritive value of clover and timothy grass mixture. The study was carried out by small-scale field experience in the FSBI «VolSC RAS» (Vologda region) in 2019–2022, as well as in 2021–2022 in the production conditions in the fields of LLC «Zazerkalie» (Vologda region).Results. In the small-plot experiment we showed that under the influence of the microbiological fertilizer treatment, the productivity of clover and timothy grass mixture increased by 7–39% depending on the year of vegetation; the total dry biomass collection for 4 years of the study in the experimental version exceeded the control by 16%. Evaluation of the nutritive value of the grass mixture showed that the fertilizer increased the content of fodder units in dry matter up to 10%, also the content of metabolizable energy, crude and digestible protein, sugars increased slightly and the content of fiber decreased. In the conditions of the production experiment under the influence of the microbiological fertilizer the herbafe collection increased by 10–17%, dry mass — by 9–22%. The nutritive value of the total content of fodder units in 1 kg of biomass in the experiment exceeded the control by 6%. The gross yield of fodder units from 1 hectare of the field increased by 9.6 cwt/ha under the effect of «Naturost-Aktiv».