In order to investigate the effects of different microbial agents on the growth,quality and yield of pepper,the pepper variety 'Mengkehong No.10'was used as the test material and a field cultivation mode was adopted by setting up four microbial agents treatments of Trichoderma harzianum,Bacillus subtilis,Streptomyces microflavus and Xindili high-tech compound microbial agent for root irrigation and water as a blank control(CK)to determine the physiological indicators,quality indicators and yield of peppers.The results showed that in terms of promoting growth,the pepper plants treated with 300 times solution of Streptomyces microflavus agent showed the best performance in plant height,plant width and stem thickness,which were 83.83 cm,63.63 cm and 1.43 cm,respectively.In terms of fruit characteristics,the pepper fruit treated with 300 times solution of Streptomyces microflavus agent showed the best performance in fruit longitudinal diameter,fruit transverse diameter,number of fruits per plant,flesh thickness and single fruit weight,which were 15.27 cm,3.80 cm,47 fruits,0.25 cm,22.47 g,respectively.Except for the number of fruits per plant and flesh thickness,which were not significantly different from the control,all other indicators were significantly higher than those of CK.In terms of fruit quality,the contents of vitamin C,capsaicin and dihydrocapsaicin of peppers treated with 300 times solution of Streptomyces microflavus agent were significantly higher than those of other treatments and CK.In terms of yield,the pepper treated with 300 times solution of Streptomyces microflavus agent for root irrigation treatment had the highest yield of 2 487.58 kg per 667 m2 with an increase of 9.34％compared with CK,which was significantly higher than that of the other four treatments.The second treatment was 800 times solution of Trichoderma harzianum agent for root irrigation treatment,which was 2 364.52 kg per 667 m2 with an increase of 3.93％compared with CK.The treatments of 600 times solution of Bacillus subtilis agent and 600 times solution of Xindili high-tech compound microbial agent for root irrigation showed poor performance.In summary,the effect of different microbial agents on the growth,quality and yield of pepper is the best achieved with the use of Streptomyces microflavus agent,which can improve the plant height,plant width and stem thickness of peppers,as well as the longitudinal and transverse diameters of the fruit,single fruit weight and yield.It is recommended to promote application in production.
维普
万方数据