| Soi lmi cr oor gani smsand t hei rmet abol i t esmay af f ectcr op gr owt h.Spr i ng No. 1 Ri ce was used ast es t ed r i ce
seeds,and St r ept omyces JD211 and i t s sol i d agent s ar e used as t est ed st r ai ns.Thr ough pl at t erexper i mentwe st udi ed t he
ef f ect sofSt r ept omycesJD211 on t he seedl i ng qual i t y and mi cr obi alf l or a.Resul t sshowed t hat10 g/ kg agent spl ayed a ver y
si gni f i cantr ol e i n pr omot i ng t he gr owt h ofr i ce seedl i ngs,and gr eat l y i mpr oved t he var i ous physi ol ogi calcondi t i ons ofr i ce
seedl i ngs,i ncl udi ng t he seedl i ng pl ant s hei ght ,l eafage,ps eudo-s t em wi dt h,l eafwi dt h,t ot alnumberofr oot s,whi t e r oot s,
r ootl engt h,mai n r ootl engt h,f r esh wei ght ,dr y wei ght ,r espect i vel y,compar ed wi t h t he cont r olgr oup,i ndexes i mpr oved by
25. 71% ,32. 42% ,54. 95% ,49. 53% ,49. 28% ,50. 84% ,14. 84% ,28. 42% ,157. 06% ,145. 54% .Chl or ophyl l ,r ootact i vi t y and
sol ubl e sugar cont enti ncr eased by 50. 00% ,19. 07% ,29. 75% ,r espect i vel y.Af t er St r ept omyces JD211 was appl i ed,t he
number of soi l bact er i a and f ungi r educed,whi l e t he number of act i nomycet es i ncr eased,and t he number of ni t r i f yi ng
bact er i a and bact er i al ni t r i f i cat i on bact er i a decl i ned, t he number of aer obi c cel l ul ose-decomposi ng bact er i a, si l i cat e
bact er i a and or gani c phosphor usbact er i a i mpr oved.M or eover ,changesoft he f unct i on ofsoi lmi cr of l or a accel er at ed t he soi l
nut r i entcycl i ng pr ocessand enhanced t he r i ce nut r i entabsor pt i on capaci t y,t her eby pr omot ed t he gr owt h ofr i ce. |
