Kuenzanisa pakati peDimethalin neVakwikwidzi
Dimethylpentyl idhinitroaniline mushonga wesora. Iyo inonyanya kutorwa neiyo inomera sora buds uye yakasanganiswa neiyo microtubule protein mumiti kuti inhibit mitosis yemasero ezvirimwa, zvichikonzera kufa kwemasora. Inonyanya kushandiswa mumarudzi akawanda eminda yakaoma, kusanganisira donje nechibage, uye muminda yakaoma yembesa yemupunga. Kana ichienzaniswa neacetochlor uye trifluralin zvigadzirwa zvinokwikwidza, dimethalin ine chengetedzo yepamusoro, inofambirana neyakajairwa nzira yekuchengetedzwa kwezvipembenene, kuchengetedza kwezvakatipoteredza uye kuderera kwehuturu. Zvinotarisirwa kuenderera mberi kutsiva acetochlor uye trifluralin mune ramangwana.
Dimethalin ine hunhu hwekuita kwepamusoro, hupamhi hwekuuraya uswa, kuderera kwehuturu uye zvakasara, kuchengetedzwa kwepamusoro kuvanhu nemhuka, uye kushambadza kwevhu kwakasimba, kusiri nyore kudonha, uye kushamwaridzana kwezvakatipoteredza; Inogona kushandiswa isati yamera uye mushure mekukura uye isati yasimwa, uye nguva yayo inosvika 45 ~ 60 mazuva. Imwe application inogona kugadzirisa kukuvadzwa kwesora panguva yese yekukura kwezvirimwa.
Ongororo yemamiriro ekusimudzira epasi rose dimethalin indasitiri
1. Mugove wemishonga yesora pasi rose
Parizvino, mushonga wesora unonyanya kushandiswa iglyphosate, unoverengera chikamu che18% chemusika wepasi rose wemishonga yesora. Yechipiri mushonga wesora ndeye glyphosate, iyo inongotora 3% chete yemusika wepasi rose. Mimwe mishonga inouraya zvipembenene ine chikamu chiduku. Nekuti glyphosate nemimwe mishonga inouraya zvipembenene inonyanya kushanda pazvirimwa zvinoshanduka. Mazhinji emishonga yesora inodiwa pakugadzirwa kwezvimwe zvirimwa zvisiri zveGM inoita isingasviki 1%, saka huwandu hwemusika wesora hwakadzikira. Parizvino, kudiwa kwemusika wepasi rose kwedimethalin kunodarika zviuru makumi mana zvematani, mutengo wepakati unofungidzirwa kuve zviuru makumi mashanu neshanu yuan/tani, uye huwandu hwekutengesa pamusika hunosvika mazana mana emamiriyoni emadhora, huchiverengera 1% ~ 2% yemusika wepasi rose wemishonga yesora. scale. Sezvo ichigona kushandiswa kutsiva mamwe mishonga inokuvadza mune ramangwana, chiyero chemusika chinotarisirwa kupeta kaviri nekuda kwenzvimbo yakakura yekukura.
2. Kutengeswa kwe dimethalin
Muna 2019, kutengesa kwepasi rose kwedimethalin kwaive 397 miriyoni emadhora ekuAmerica, zvichiita kuti ive yechigumi nembiri yakakura monomer yeherbicide munyika. Maererano nematunhu, Europe ndeimwe yemisika yakakosha yevatengi yedimethalin, inoverengera 28.47% yemugove wepasi rose; Asia inotora 27.32%, uye nyika huru dzekutengesa iIndia, China neJapan; Nyika dzeAmerica dzinonyanya kuiswa muUnited States, Brazil, Colombia, Ecuador nedzimwe nzvimbo; Middle East neAfrica vane kutengesa kudiki.
Summary
Kunyangwe dimethalin ine mhedzisiro yakanaka uye ine hushamwari kwezvakatipoteredza, inonyanya kushandiswa zvirimwa zvemari zvakaita sedonje nemiriwo nekuda kwemutengo wayo wepamusoro mumhando imwechete yemishonga yesora uye kunonoka kutanga kwemusika. Nekushanduka zvishoma nezvishoma kweiyo misika yemumba pfungwa, kudiwa kwekushandiswa kwedimethalin kwakawedzera nekukurumidza. Huwandu hwemishonga inoshandiswa mumisika yemunyika yawedzera nekuchimbidza kubva pamatani angangosvika 2000 muna 2012 kusvika pamatani anodarika 5000 pari zvino, uye yakasimudzirwa nekuisa mupunga wakadyarwa wakaoma, chibage nezvimwe zvirimwa. Musanganiswa wakasiyana-siyana wemusanganiswa unoshanda uri kukurawo nekukurumidza.
Dimethalin inoenderana nemusika wepasirese maitiro ekutsiva zvishoma nezvishoma mishonga ine muchetura uye yakasara yakasara nemishonga inouraya zvipembenene. Ichange iine dhigirii repamusoro rekufananidza nekuvandudzwa kwekurima kwemazuva ano mune ramangwana, uye pachave nenzvimbo huru yekusimudzira.
Nguva yekutumira: Zvita-13-2022
