Abstract
Four-year studies revealed a positive role of the effect and aftereffect of the defecate and inoculation of seeds by virulent active strains of Rhizobium Synorhizobium meliloty on the productivity of green and dry alfalfa varieties VEGA 87. The total yield of green alfalfa has varied during four years of life (ten bites) from 142.2 t/ha in the control variant to 153.4-183.2 t/ha in the experimental variants. Total productivity of green mass in variant with application of lime increased by 18.3 %, in the variants with presowing treatment of the seeds with rhizobia strains –by 7.9-11.5 % and their combination – by 23.4-28.8 %. The yield of dry mass in the variant with application of defecate increased by 28.8 %, in the variants with presowing treatment of the seeds with rhizobia strains by 10.7-13.7 % and at their joint action by 37.6-42.0 %. The biggest increase in productivity of green and dry mass is provided by inoculation of the seeds with a promising A4 strain when applying defecate, and without the use of meliorant – inoculation of the seeds with the main production strain 425a. The application of defecate and bacterial preparations for presowing treatment of the alfalfa seeds is agronomically and economically profitable, it promotes to increase the environmental stability of the agricultural landscape and plants to stressful conditions, a balanced level of nutrition, increasing plant productivity and profitability (low cost) of their cultivation.
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More From: IOP Conference Series: Earth and Environmental Science
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