No abstract

The іnoculation and plant growth regulators have been studied for their effect on the symbiotic nitrogen fixation and productivity of soybean in the field experiments. It was shown that nitraginisation with the high efficient strain B. japonicum 71т (UCМ В-6035) promotes active rhizobium-soybean nodulation system, and crude protein yield increasing as the result of the symbiosis efficiency. The combined use of Nitragin and plant growth regulators requires attention to both cultivar peculiarities of macrosymbionts and specific action of these preparations.