Cov kab mob hauv av, xws li kab mob wilt, fusarium wilt, qhuav rot, sheath blight, paus rot, damping tawm, thiab lwm yam, yog heev loj thiab feem ntau ua rau poob loj. Hauv qhov xwm txheej hnyav, cov qoob loo tuaj yeem poob. Kev siv tshuaj tua kab rau kev tswj tsis tau tsuas yog ua tsis tau zoo xwb, tab sis kuj tuaj yeem ua rau cov av muaj kuab lom. Niaj hnub no, kuv xav qhia rau koj ib tus neeg sawv cev zoo tshaj plaws rau kev tiv thaiv thiab tswj cov kab mob hauv av, uas yog Bacillus subtilis.
1. Sterilization mechanism
Bacillus subtilis yog ib hom Bacillus uas tau muab faib rau hauv humus ntawm quav nyab. Nws yog ib qho yooj yim los muab faib rau hauv cov kua txiv quav nyab, yog li nws lub npe. Bacillus subtilis hlob sai heev thiab tswj thiab tua cov kab mob feem ntau los ntawm kev sib tw rau cov chaw thiab cov khoom noj.
(1) Competitive sterilization:Thaum Bacillus subtilis tiv tauj cov qoob loo hauv paus, nws tuaj yeem ua kom sai thiab ua kom cov qoob loo, tiv thaiv kev loj hlob ntawm lwm yam kab mob kom ua tiav lub hom phiaj ntawm kev tiv thaiv kab mob.
(2) Tsim cov tshuaj lytic rau kom tsis muaj menyuam:Bacillus subtilis tuaj yeem ua rau cov kab mob ua rau cov kab mob thiab tsim cov tshuaj lytic, uas tuaj yeem tawg thiab rhuav tshem cov hyphae ntawm cov kab mob lossis zom lawv cov cytoplasm.
(3) Tsim cov tshuaj bacteriolytic:Bacillus subtilis tseem tuaj yeem tsim cov tshuaj tua kab mob los tiv thaiv kev loj hlob thiab kev loj hlob ntawm cov kab mob fungi thiab kab mob, yog li tua cov kab mob.
2. Cov yam ntxwv tseem ceeb
(1) Broad bactericidal spectrum:Bacillus subtilis yog kab mob Gram-positive. Nws tuaj yeem siv los tiv thaiv thiab tswj ntau yam kab mob xws li fusarium wilt, kab mob wilt, verticillium wilt, grey pwm, hauv paus rot, sheath blight, dub shank, powdery mildew, bakanae, kab mob blight, thiab lwm yam., nrog rau ib tug tshwj xeeb dav bactericidal spectrum. .
(2) Tsawg toxicity thiab kev tiv thaiv ib puag ncig:Bacillus subtilis yog tsim los ntawm fermentation. Nws yog toxicity tsawg, nyab xeeb thiab tsis muaj kuab paug. Nws yog thawj tus neeg sawv cev rau kev tsim cov khoom ua liaj ua teb ntsuab.
(3) Ntau yam kev siv:Bacillus subtilis feem ntau ua tiav lub hom phiaj ntawm kev ua kom tsis muaj menyuam los ntawm kev ua kom tsis muaj kab mob ntawm cov qoob loo, thiab tuaj yeem siv ntau txoj hauv kev xws li kev hnav khaub ncaws ntawm cov noob, kev ywg dej hauv paus, txau, thiab lwm yam.
3. Cov qoob loo siv tau
Nws tuaj yeem siv dav hauv dib, txiv lws suav, txiv lws suav, eggplant, kua txob, nplej, nplej, strawberry, haus luam yeeb, paj rwb, Panax notoginseng thiab lwm yam qoob loo.
4. Yuav siv li cas
Txhawm rau tiv thaiv thiab tswj cov kab mob xws li fusarium wilt, kab mob wilt, thiab verticillium wilt ntawm watermelons, dib, txiv lws suav, eggplants, peppers thiab lwm yam qoob loo, cov hauv qab no yuav siv tau los tiv thaiv thiab tswj:
(1) Noob hnav khaub ncaws:Thaum cog, siv 1 billion nyob spores / g wettable hmoov thiab hnav cov noob ntawm cov tshuaj-rau-cov noob piv ntawm 1:10 txog 15.
(2) Kev ywg dej hauv paus:Pib dej ua ntej pib muaj kab mob los yog thaum ntxov. Feem ntau, 600-800 lub sij hawm ntawm 1 billion siv tau spores/g wettable hmoov yog siv los irrigate cov hauv paus hniav, thiab dej downward raws lub hauv paus ntawm qia. Txhua tsob nroj xav tau 150-250 ml ntawm cov tshuaj tov. Ib zaug txhua 10 mus rau 15 hnub thiab yuav tsum tau ywg dej 2 mus rau 3 zaug tsis tu ncua, nws tuaj yeem tiv thaiv thiab tswj cov kab mob los ntawm kev nkag mus rau cov nroj tsuag thiab tua cov kab mob ntawm cov qoob loo.
5. Tej yam yuav tsum nco ntsoov
Bacillus subtilis feem ntau yog siv rau hauv av txias, tshuaj tsuag, hauv paus irrigation, noob hnav khaub ncaws thiab noob txheej. Ua tib zoo saib cov ntsiab lus hauv qab no thaum txau:
(1) Vim yog siv me me, txhawm rau txo cov khoom pov tseg, yuav tsum siv cov txheej txheem thib ob. Qhov ntau npaum ntawm Bacillus subtilis yog me me. Txhawm rau txo cov khoom pov tseg, thaum sib tov cov tshuaj, siv lub thawv me me kom yaj tag nrho cov tshuaj uas xav tau thiab muab tso rau hauv lub sprayer. Ntxiv dej rau qib zoo ntawm cov tshuaj tsuag thiab tshuaj tsuag.
(2) Siv tshuaj tua kab ua ntej 10 teev sawv ntxov lossis tom qab 4 teev tsaus ntuj kom tsis txhob raug tshav ntuj ncaj qha los tua cov kab mob. Tshwj xeeb tshaj yog thaum thov tom qab 4 teev tsaus ntuj, qhov chaw ntub dej thaum hmo ntuj yog qhov tsim nyog rau cov kab mob germination.
(3) Tsis txhob sib tov nrog tooj liab npaj, streptomycin thiab lwm yam fungicides thiab alkaline tshuaj tua kab. Qhov txiaj ntsig zoo tshaj plaws yog ua tiav thaum siv tshuaj tua kab thaum ntxov ntawm tus kab mob los yog ua ntej qhov pib ntawm tus kab mob. Thaum siv tshuaj tua kab, xyuam xim rau txau cov kua sib npaug rau txhua qhov ntawm cov qoob loo.
