A kind of brady-growing soybean rhizobia protective agent

Abstract

The invention discloses a slow-growing soybean rhizobium protective agent. The slow-growing soybean rhizobium protective agent comprises, by weight, YMA (yeast morphology agar) culture media, 0.1-0.2 wt% of peptone, 0.006-0.014 wt% of xanthan gum, 0.1-0.2 wt% of KaCl and 0-0.01 wt% of boric acid. The slow-growing soybean rhizobium protective agent has the advantages that the slow-growing soybean rhizobium protective agent not only contains salt and carbohydrate substances for maintaining osmotic pressures of microorganisms, but also contains proteins and trace elements for stimulating growth of inoculants and soybean, films further can be effectively formed, rhizobia can be promoted to form protein substances with comparative advantages on the surfaces of soybean, space-occupying dominance can be formed during actual application, invasion of indigenous rhizobia can be resisted, effective nodulation quantities can be increased, and service effects of the inoculated rhizobium inoculants can be improved; the slow-growing soybean rhizobium protective agent is compatibly used with the rhizobium inoculants, so that the survival rates of the rhizobium inoculants in soil can be increased, comparative advantages can be formed on the surfaces of soybean seeds, competition of the indigenous rhizobia can be resisted, and invalid nodulation can be reduced.

Description

technical field [0001] The invention relates to a protective agent for soybean rhizobia. Background technique [0002] The use of rhizobia inoculants in soybean production is a well-established technology that has been widely recognized for increasing yield and improving soybean quality. According to literature reports, soybean fields using rhizobia inoculants in foreign countries account for 30-50% of the total sown area, and some countries can reach more than 70% or even higher; while the area inoculated with rhizobia agents in my country only accounts for 1-3% of the sown area. In recent years, in order to speed up the promotion of soybean rhizobia technology, increase soybean production and quality, save costs and increase efficiency, the Heilongjiang provincial government has allocated 5 million yuan of financial funds every year to promote it in the main soybean producing areas of the province by combining subsidies and self-financing. Soybean rhizobia inoculant techn...

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Problems solved by technology

[0005] At present, there are not many research reports on rhizobia protective agents

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