BIOPREPARATIONS INFLUENCE ON SEED PRODUCTIVITY OF GOAT’S-RUE EAST (Galega orientalis)

Results are given of studies on the effect of pre-sowing inoculation with bacterial and growthpromoting biopreparations on seed  productivity of goat’s-Rue East (Galega orientalis) grown on acidic (pH of 5.2) gray forest soils of the subtaiga zone of Tomsk  Region. The researches were carried out by Siberian Research  Institute of Agriculture and Peat in 2006-2010. On the background of the variant without seed treatment there were studied different  combinations of rhizotorphine with rhizoagrin, mizorin, sodium  humate from peat and albit. It was observed that in the year of  sowing, plants adaptability to growth conditions increased due to  bio-preparations using. There was also reported symbiotic activity activation and improvement of plants morphometric  parameters and acceleration of some development phases. Productive parameters analysis of seed herbage over the application years was carried out and agro-energetic efficiency of  biopreparations application was calculated as well. The positive effect of the complex application of symbiotic and rhizosphere bacteria and growth stimulators on the herbage structure and seed productivity  elements was established: in comparison with the control, the  number of generative stems per 1 m2 increased by 7.6–17.4 %  average, the number of brushes – by 296 %, beans – by 34 %, and  seeds yield – by 38.5 % while energy consumption for 1 kg of seeds  production decreased in 2.4-3.4 times. Best results were obtained  under inoculation with rhizotorphine in combination with sodium  humate. Over the application years that variant provided constantly  high values of plant productivity parameters and maximum biological seeds yield by 54 % higher than that of the variant without  treatment and 18 % more than under inoculation with rizotorphine  alone. With energy consumption per hectare increasing, 1 kg of  seeds cost in energy units was minimal and equal to 13.8 MJ that  was by 33.6 and 5.9 MJ cheaper than that in variants without  treatment and under inoculation with rizotorphine alone, respectively.

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