Propanil: Cov yam ntxwv thiab kev siv tshuaj ntsuab
1. Raws li cov tshuaj tua kab mob Post-Emergent hauv nplej
Propanil feem ntau yog siv los ua tshuaj tua kab mob tom qab tshwm sim hauv cov nplej.
Nws lub hom phiaj tseem ceeb yog tswj 'cov nyom nyom' uas tsis cuam tshuam los ntawm kev siv tshuaj tua kab mob dav dav.
2. Tshuaj muaj pes tsawg leeg thiab lub luag haujlwm
Propanil yog anilide tsim los ntawm condensation ntawm carboxy pawg ntawm propanoic acid nrog cov amino pawg ntawm 3, 4-dichloroaniline.
Nws yog ib qho tshuaj tua kab mob siv los kho ntau yam nyom thiab cov nyom dav dav hauv nplej, qos yaj ywm, thiab nplej.
Nws ua haujlwm raws li tshuaj tua kab mob thiab yog anilide thiab dichlorobenzene uas muaj feem xyuam nrog 3, 4-dichloroaniline.
Cov hauv qab no yog cov chaw siv ntawm cov khoom:
3. Kev puas tsuaj thiab kev txav mus los
Propanil yog metabolized sai heev nyob rau hauv ob qho tib si anaerobic thiab aerobic tej yam kev mob nyob rau hauv ib tug dej thiab av matrix.
Ib nrab-lub neej ntawm propanil hauv av yog 1 mus rau 3 hnub.
Nws yog qhov ruaj khov rau cov duab- thiab tshuaj lom neeg degradation tab sis muaj kev cuam tshuam rau biodegradation.
Propanil yog mobile thiab muaj peev xwm thauj mus los ntawm dej.
Nws tsis tas mus li thiab tau hloov pauv mus rau hauv cov degradates xws li 3, 4-dichloroaniline thiab 3,3′,4,4′-tetrachloroazobenzene, uas feem ntau yog cov tshuaj lom thiab tsis tu ncua.
Propanil tsis tshua pom nyob rau hauv av.
4. Toxicity
Hauv cov nroj tsuag, nws yog tshuaj lom vim yog inhibition ntawm photosynthesis ntawm theem ntawm photosystem II.
Hauv cov tsiaj, nws induces methemoglobinemia, ua rau cov nqaij mos hypoxia.
Propanil yog tshuaj lom rau cov dej vertebrates (xws li, crayfish, worms, qwj) thiab ntses.
Nws muaj mob me me rau cov noog.
Kev siv rau kev tiv thaiv qoob loo tuaj yeem ua rau muaj qhov tsis zoo rau cov noog, tsiaj me me, cov dej tsis huv, thiab cov nroj tsuag dej.
Cov tsiaj me me thiab cov ntses dej qab zib / cov pob txha tsis muaj zog tuaj yeem ua rau muaj kev cuam tshuam ntev los ntawm kev siv mus ntev.
Cov hauv qab no yog cov chaw siv ntawm cov khoom:
5. Kev siv dav thiab kev xaiv
Propanil yog siv dav siv tshuaj tua kab mob.
Hauv Tebchaws Meskas xyoo 2001, nws muaj kwv yees siv li ntawm 8 lab phaus thiab tau hais tias yuav siv li ntawm 400,000 acres ntawm cov qoob loo txhua xyoo.
Rice muaj kev tiv thaiv zoo rau propanil vim muaj qib siab ntawm enzyme aryl acylamidase (AAA), uas sai sai metabolizes propanil rau cov tsis muaj tshuaj lom 3,4-dichloroaniline.
Cov nroj tsuag raug tsim txom tsis muaj cov noob coding rau AAA enzyme thiab muaj kev cuam tshuam rau propanil. Txawm li cas los xij, kev siv hnyav tau ua rau qee cov nroj tsuag tuaj yeem tiv taus propanil.
Yog tias koj xav paub ntxiv, thov nyem rau ntawm daim duab saum toj no!