Compound rhizobium inoculant as well as preparation method and application thereof

Abstract

The invention discloses a compound rhizobium inoculant as well as a preparation method and application thereof. The preparation method of the compound rhizobium inoculant comprises that turfy soil is taken as a carrier, ammonium molybdate, peanut seedling powder, gamma-polyglutamic acid, cane sugar, calcium carbonate and organic silicon are taken as synergist auxiliaries, and bradyrhizobium sp arachis (BASWS) and bacillus thuringiensis BtR05 fermentation liquor are made into powder, wherein effective bacterial count of the BASWS in the powder is 0.1-0.4 billion / g, and the effective bacterial count of the BtR05 is 0.6 billion / g. The compound rhizobium inoculant can be used for effectively preventing and controlling white grubs and can also be used for obviously increasing peanut yield.

Description

technical field

[0001] The invention relates to the technical field of preparation of biological bacteria agents, in particular to a compound rhizobia agent and its preparation and application. Background technique

[0002] Peanuts are grown all over the country, mainly distributed in Liaoning, Shandong, Hebei, Henan, Jiangsu, Fujian, Guangdong, Guangxi, Sichuan and other provinces (regions). Among them, Shandong Province has the largest planting area and the largest output.

[0003] In recent years, with the continuous expansion of peanut sowing area, the harm of underground pests has become more and more serious. Among them, grubs are currently the biggest pests that harm peanuts. According to the survey, grubs cause an annual loss of more than 20% of the peanut yield, serious or even extinct (Zhou Shuai, Su Ruifeng, et al. Peanut underground pests - comprehensive control technology of grubs [J]. Seed Industry Guide, 2009 .). Bacillus thuringiensis ( Bacillus thuringi...