| Through the investigation of the development of Rucheng small yellow ginger industry,’Rucheng small yellow ginger’ is an excellent local ginger variety that is widely cultivated in Rucheng County and originated in Rucheng County.It has a long history of cultivation and large-scale cultivation has lasted for more than 20 years.The cultivation area has expanded year by year and has become an important economic crop for farmers in Rucheng County to get rid of poverty and become rich.With the gradual expansion of ginger cultivation area,the incidence of ginger blast disease is gradually increasing,which is a technical bottleneck that Rucheng ginger growers urgently need to solve.Through the investigation of ginger blast,which is the most serious disease of ginger in Rucheng County,to understand the cause and regularity of the occurrence of ginger blast in Rucheng,the isolation and identification of ginger blast were carried out,and the green cultivation pesticides and beneficial biological bacteria were screened,and In the field test of biological bacteria to control ginger blast,the green cultivation technical regulations of Rucheng ginger have been formulated for reference.(1)Rucheng small yellow ginger is the main plant variety in the local area.It is mainly planted in open fields.The planting area has been expanded year by year.It has brought more economic income to the farmers in Rucheng.It has made great contributions to the great cause of poverty alleviation and has become Rucheng.Leading industry of county agriculture.(2)The diseased plant of ginger blast in Rucheng County belongs to Ralstonia solanacearum,and the biochemical type identification belongs to biochemical type IV.(3)Screening of green control agents for ginger blast,ethicin has the best inhibitory effect on ginger blast disease,with an average inhibition zone diameter of 14.8 mm,of which a concentration of 1×40 times has the best inhibitory effect,with an inhibition zone of20 mm.The screening results of biological bacteria showed that Bacillus subtilis and Bacillus licheniformis had the best inhibitory effect on ginger blast disease,and the inhibitory effect was the best at a concentration of 1×120 times,and the inhibition zone was15.7 mm.Field test results show that the effect of Bacillus polymyxa is better than that of Streptomyces non-hygroscopic,and the control effect of Bacillus subtilis is more stable.(4)The technical regulations for green production of ginger in Rucheng County were formulated,which stipulated the production environment,selection and treatment of ginger species,cultivation techniques,production management measures and requirements for harvesting and storage of ginger in Rucheng County.It is applicable to the small yellow ginger products and their planting and production within the scope of the regulations of the "Rucheng" vegetable public brand. |
