Prospects for the use of <em>Sinorhizobium meliloty</em> strains to increase the productivity of variegated alfalfa in the conditions of the Primorsky territory

Author:

Ivanova E. P.1,Klykov A. G.2

Affiliation:

1. Sakhalin Research Institute of Agriculture

2. Federal State Budget Scientific Institution “Federal Scientific Center of Agricultural Biotechnology of the Far East named after A.K. Chaiki”

Abstract

The authors used the field and laboratory research methods in 2009–2012 and 2018– 2020. On the meadow-brown bleached soil of the Primorsky Territory, the effect of seed inoculation with various strains of nodule bacteria Synorhizobium meliloty on the yield and feed productivity of alfalfa was studied. According to current guidelines, experimental research, records, and observations were carried out. Strains of nodule bacteria Synorhizobium meliloty were provided by the Laboratory of Ecology of Symbiotic and Associative Rhizobacteria of the Federal State Budgetary Scientific Institution “All-Russian Research Institute of Agricultural Microbiology”. In seven years of research, the positive role of the studied factor in increasing the yield, nutritional, and energy value of alfalfa was established. The total collection of green mass in three experiments in variants with inoculation of alfalfa seeds with rhizobia strains increased by 4.0–15.2%, and the collection of dry matter increased by 6.8–21.7%. The most significant increase in the yield of green mass and dry matter in experiments 1 and 2 was provided by the primary production strain 425a and experiment 3 – by production strain 415b. Regarding quality indicators, in experiments 1 and 2, production inoculant 425a had an advantage, and in experiment 3, the promising strain A1 and production strain 415b had an advantage. For adaptive intensification of forage production, the creation of stable agrophytocenoses with alfalfa with inoculation of seeds with virulent active strains of rhizobia (mainly the main production strains 425a and 415b) is shown.

Publisher

Federal State Educational Institution of Higher Education Novosibirsk State Agrarian University

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