Cov Kev Zoo rau Dazomet 98% Tc
| Lub npe khoom | Dazomet |
| Cov Ntsiab Lus | 98% TC |
| Qhov tsos | Dawb siv lead ua kua qaub |
| Siv | Cov nematocides nrog fumigation function tuaj yeem rhuav tshem methyl isothiocyanate, formaldehyde thiab hydrogen sulfide hauv av, thiab muaj kev tua cov nyhuv rau rhizoma nematode, stem nematode thiab heteroderma nematode. Tsis tas li ntawd, nws muaj cov tshuaj tua kab, kab mob thiab tshuaj ntsuab, yog li nws kuj tuaj yeem kho cov kab mob hauv av, cov kab tsuag hauv av thiab cov nroj tsuag chenopodium. |
Daim Ntawv Thov
Cov tshuaj tua kab mob dav dav. Cov tshuaj nematocides nrog fumigation function tuaj yeem rhuav tshem cov methyl isothiocyanate, formaldehyde thiab hydrogen sulfide hauv av, thiab muaj cov nyhuv tua rau rhizoma nematode, stem nematode thiab heteroderma nematode. Tsis tas li ntawd, nws muaj cov nyhuv tua kab, bactericidal thiab herbicidal, yog li nws kuj tuaj yeem kho cov kab mob hauv av, cov kab tsuag hauv av thiab cov nroj tsuag chenopodium, xws li qos yaj ywm rhizoctonia, cov kab hauv av polypteroptera, kowbeetles, May scarab larvae thiab lwm yam. Siv 98% particulate agent 750 ~ 900g/100m2 xuab zeb av, 900 ~ 1050g/100m2 av nplaum ua kev kho av, kis lossis siv trench, Chemicalbook tuaj yeem tswj cov kab mob zaub thiab txiv laum huab xeeb nematode. 75% hmoov ntub 1125g/100m2 tuaj yeem siv los tswj cov kab mob qos yaj ywm hauv paus nematode.
Tshuaj tua kab mob hauv av, methyl thioisothiocyanate nematocide, thiab tseem siv tau los kho cov kab mob fungi, cov kab tsuag hauv av thiab cov nroj tsuag, tseem hu ua kev ploj sai. Cov khoom no lwj hauv av los ua methylaminomethyl dithiocarbamate, thiab tom qab ntawd los ua methyl isothiocyanate. Nws tuaj yeem tswj tau cov kab mob nematodes thiab cov kab mob hauv av, xws li cov kab mob cataplexy, cov kab mob filarial, fusarium, thiab lwm yam, thiab tseem tuaj yeem tiv thaiv kev loj hlob ntawm ntau cov nroj tsuag. Nws muaj kev tswj hwm zoo rau cov kab mob paj rwb daj.
Cov txheej txheem tua kab mob
(1) Ua ntej siv Dazomet, ntxuav cov cag ntawm cov qoob loo kawg, thiab siv cov chiv chiv uas cov qoob loo tom ntej xav tau.
(2) Xyuas kom meej tias cov dej noo ntawm cov av ncav cuag li 50-60% ntawm cov dej hauv thaj teb, yog tias nws tsis ua tau raws li tus qauv, koj tuaj yeem txhaj dej rau hauv thaj teb; 3-5 hnub tom qab dej ntws, siv lub tshuab tig thiab rhuav cov av kom ntseeg tau tias cov av permeability.
(3) Thaum siv Dazomet, qhov kub thiab txias ntawm cov av yog 12-18 ° C, thiab qhov tsawg kawg nkaus tsis tuaj yeem tsawg dua 6 ° C.
(4) Siv 25-40g ntawm Dazomet ib square meter ntawm thaj av. Ntawm lawv, kev siv dib, kua txob qab zib, kua txob tsev cog khoom yog 20-25kg / mu, kev siv txiv lws suav tsev cog khoom yog 25-30kg / mu, thiab kev siv strawberry tsev cog khoom yog 15-20kg / mu.
(5) Siv cov tshuaj kom sib npaug rau ntawm qhov chaw, thiab tom qab ntawd siv lub tshuab ua teb rau kev ua teb (qhov tob yog 25-30cm), kom Dazomet nce siab sib cuag nrog txheej ua teb kom ua tiav qhov ua tau zoo tshaj plaws. Yog tias cov nematode hauv paus pob caus tshwm sim hnyav, qhov tob ntawm kev ua teb yuav tsum yog 40cm, thiab qhov txwv siab tshaj plaws ntawm kev siv tshuaj yuav tsum tau siv.
(6) Tom qab siv, dej raug txau rau ntawm qhov chaw kom tsim cov roj tua kab mob (methyl isothiocyanate, formaldehyde thiab hydrogen sulfide).
(7) Npog daim zaj duab xis (qhov tuab yuav tsum tsis pub tsawg dua 6 daim ntaub), tom qab ntawd muab daim zaj duab xis ntim nrog av tshiab, tsis txhob cia cov pa tshuaj tua kab mob tawm, thiab khaws qhov kub ntawm cov av ntawm 10cm ntawm 20 ℃, kaw kev tua kab mob rau li 15-20 hnub (hauv huab cua kub qis, lub sijhawm fumigation yuav tsum tau ntev dua).
(8) Tom qab tua kab mob lawm, qhib daim zaj duab xis, thiab siv lub tshuab laij teb kom cua nkag mus rau hauv av, tso cov pa phem uas tseem nyob hauv av, feem ntau cua nkag mus rau hauv av li 15 hnub (thaum huab cua txias thiab ntub, ncua lub sijhawm cua nkag mus, thaum huab cua kub thiab qhuav, txo lub sijhawm cua nkag mus).
(9) Cov noob tuaj yeem cog tau tom qab tua kab mob.
Lub mechanism ntawm Dazomet boom
1. Dazomet yog cov tshuaj tua kab mob hauv av uas zoo rau ib puag ncig, muaj txiaj ntsig zoo, tsis muaj tshuaj lom thiab tsis muaj cov khoom seem.
2. Thaum siv rau hauv av ntub, nws raug rhuav tshem mus rau hauv cov tshuaj lom methyl isothiocyanate, formaldehyde thiab hydrogen sulfide hauv av, thiab kis mus rau cov av me me sai sai, tua tau ntau yam nematodes, pathogens, underground pests thiab germination noob nroj tsuag hauv av, yog li ua tiav cov txiaj ntsig ntawm kev ntxuav av.
3. Daim ntawv thov raug cuam tshuam los ntawm qhov kub thiab txias ntawm av thiab av noo thiab cov qauv av, kev siv av kub yuav tsum siab dua 12 ° C, 12-30 ° C yog qhov tsim nyog tshaj plaws, av noo ntau dua 40% (av noo rau tes pinch av tuaj yeem tsim ib pawg, 1 meter qhov siab tuaj yeem tawg tom qab poob rau hauv av raws li tus qauv).
