Lub mechanism ntawm kev txiav txim ntawm tooj liab hydroxide yog los ntawm kev tso cov tooj liab ions thiab qhov kev txiav txim ntawm -SH, -NH2, -COOH, -Oh thiab lwm pab pawg neeg nyob rau hauv cov protein ntawm fungi, ua rau kom tuag ntawm cov kab mob thiab ua si lub luag hauj lwm bactericidal.
Tshuaj tua kab tooj liab hydroxide tuaj yeem tswj tau ntau yam kab mob, tuaj yeem siv rau ntau yam qoob loo, zaub thiab lwm yam.Xws li citrus, mov, txiv laum huab xeeb, zaub cruciferous, carrots, txiv lws suav, qos yaj ywm, dos, peppers, tshuaj yej ntoo, txiv hmab txiv ntoo, txiv ntoo thiab lwm yam.Hauv particular, 77% tooj liab hydroxide (wettable hmoov) ua cov tshuaj tua kab mob fungicide rau cov neeg ua liaj ua teb feem ntau siv cov phooj ywg tshuaj.Nws muaj kev tswj xyuas zoo ntawm qee cov kab mob ntawm cov txiv hmab txiv ntoo thiab zaub, xws li txiv apple nplhaib, anthrax, kab mob deciduous, xim av, kab mob rot, thiab lwm yam. Tsis tas li ntawd, nws kuj muaj txiaj ntsig zoo rau qee cov kab mob txiv hmab txiv ntoo.
Tshuaj tua kab tooj liab hydroxide tiv thaiv thiab tswj cov khoom:
1. Cov kab mob zaub
Tiv thaiv thiab tswj cov txiv lws suav thaum ntxov blight, ib mu nrog 77% wetable hmoov 133-200 grams (folding 103-154 grams ntawm cov khoom xyaw zoo / mu), feem ntau ntxiv dej 75-100 kilograms, sib npaug rau dilution 500-750 zaug, tag nrho tov. Tom qab siv foliar txau, lub sijhawm thov yuav tsum yog ua ntej qhov pib lossis qhov pib txau, feem ntau txhua 7-10 hnub ib zaug, Txau peb zaug hauv tag nrho;Siv 61.4% qhuav suspension tus neeg sawv cev 150-177 grams ib mu (zoo tivthaiv 92.1 - 107.5 grams / mu), feem ntau ntxiv dej 75-100 kg, foliar spray, thaum pib ntawm qhov pib ntawm daim ntawv thov, tom qab txhua txhua 10 hnub tshuaj tsuag ib zaug. , tag nrho ntawm plaub zaug.Nws muaj txiaj ntsig zoo rau kev tiv thaiv kab mob thaum ntxov, thiab tuaj yeem kho cov kab mob lig.Piv nrog Bordeaux kua, cov tshuaj no muaj kev ncua zoo dua thiab tawg, yooj yim siv thiab nyab xeeb rau cov qoob loo.Kev txiav txim siab tshwj xeeb ntawm tus lej ntawm daim ntawv thov thiab lub sijhawm ntawm ob daim ntawv thov tuaj yeem txiav txim siab raws li qhov hnyav ntawm tus kabmob.Tiv thaiv thiab tswj dib keratosis, downy mildew, ib mu nrog 77% wetable hmoov 150-200 grams (folding zoo tivthaiv 115.5-154 grams / mu), feem ntau ntxiv dej 75-100 kg, sib tov tusyees tom qab txau.Thaum pib ntawm qhov pib ntawm kev txau, tom qab txhua txhua 7 hnub ntawm daim ntawv thov ib zaug, daim ntawv thov txuas ntxiv ntawm 3-4 zaug, tuaj yeem tswj cov kab mob ntawm cov kab mob, cov kab mob mildew.
2. Txiv hmab txiv ntoo kab mob
Cankker kab mob ntawm citrus tsob ntoo ntawm kev tiv thaiv thiab kho, kab mob hauv paus blight, 77% wettability powdery concentration 300, 800 zaug kua (sib npaug rau 962.5, 2567 mg / kg), uas yog 100 grams ntawm cov tshuaj ntxiv dej 30, 80 kg, tom qab sib tov txawm. tshuaj tsuag.Lub sij hawm thov rau qhov pib ntawm kev txau thaum ntxov, tshuaj tsuag 4-5 zaug, txhua 7-10 hnub los siv tshuaj, nyob ntawm seb qhov mob hnyav.General nyob rau hauv citrus xie florescence, hluas txiv hmab txiv ntoo lub sij hawm, cov tub ntxhais txiv hmab txiv ntoo txoj kab uas hla 0.8-1 cm, 1.5-2.3 cm, lub caij nplooj zeeg tip pa luam yeeb plaub hau 2-3 cm, lub caij nplooj zeeg taub txij li thaum extension ntawm daim ntawv thov ntawm cov tshuaj yog tsim nyog.61.4% qhuav suspension concentration yog 600 - 800 zaug ua kua (sib npaug rau 767.5 - 1023.3 mg / kg).Thaum pib ntawm qhov pib ntawm kev txau, txau feem ntau 3-4 zaug, txhua lub sijhawm ntawm 10 hnub, tuaj yeem tswj cov kab mob canker zoo, tab sis kuj tuaj yeem kho anthrax.Nws yog ib qho ntawm cov kev npaj tooj liab los hloov cov kua Bordeaux, nrog rau kev ncua zoo heev thiab kev sib cais, zoo tiv thaiv los nag yaig, lub sij hawm ntev, siv tau yooj yim, muaj kev nyab xeeb rau cov qoob loo, thiab tsis muaj kev puas tsuaj ntawm cov tshuaj pom zoo.
Lub sij hawm xa tuaj: Plaub Hlis-26-2022