1. The biologically pure culture of a strain of Bradyrhizobium japonicum, selected from the group consisting of strain NRRL B-depository accession number 50612, strain NRRL B-depository accession number 50611 strain depository accession number NRRL B-50610, the strain with the Deposition Number access NRRL B-50609, strain NRRL B-depository accession number 50608, or a combination of at least two or more shtammov.2. A composition comprising one or more of the isolated bacterial strain (s) according to Claim. 1 and agriculturally acceptable nositel.3. A composition according to claim. 2, wherein the composition comprises at least one advantageous from the point of view of agriculture ingredient.4. A composition according to claim. 3, wherein said at least one advantageous from the point of view of agriculture ingredient comprises one or more signaling molecules rasteniya.5. A composition according to claim. 4, wherein the signaling molecule is a plant lipohitooligosaharid (LCO) .6. A composition according to claim. 5, where the LCO is sinteticheskim.7. A composition according to claim. 5, where the LCO is rekombinantnym.8. A composition according to claim. 5, where the LCO is prirodnym.9. A composition according to claim. 4, wherein the plant signal molecule is a chitinous soedinenie.10. A composition according to claim. 9, wherein the compound is a chitin oligomer hito (CO) .11. A composition according to claim. 9, where the CO is sinteticheskim.12. A composition according to claim. 9, where the CO is rekombinantnym.13. A composition according to claim. 9, where the CO is prirodnym.14. A composition according to claim. 4, wherein the signaling molecule is a flavonoid.15 plants. Composition according to claim. 14 wherein the flavonoid is selected from the group consisting of luteolin, apigenin, tangeritina, quercetin, kaempferol, myricetin, fizetina, isorhamnetin, pachipodola, ramnazina, hesperetin, naringenin, formononetin, eriodiktiola, gomoeriodikti1. Биологически