Phenyltriethoxysilane; PTES (CAS#780-69-8)

Mawu Oyamba: Mwachidule

Gulu lodziwika ndi nambala ya CAS 780-69-8 limatchedwa 2,4-dichlorobenzoic acid (2,4-D). Chifukwa cha mphamvu yake ngati mankhwala ophera udzu, mankhwalawa adziwika kwambiri pazaulimi. Ndiwothandiza makamaka poletsa udzu wamasamba otakata mu mbewu zosiyanasiyana, ndikupangitsa kukhala chakudya chofunikira kwambiri pazaulimi wamakono.

2.4-D idapangidwa koyamba m'ma 1940s ndipo yakhala imodzi mwamankhwala omwe amagwiritsidwa ntchito kwambiri padziko lonse lapansi. Kachitidwe kake kumaphatikizapo kutsanzira mahomoni achilengedwe a zomera, zomwe zimapangitsa kuti udzu womwe umakhudzidwawo ukule mosalamulirika, zomwe zimatsogolera ku imfa yake. Kusankha kumeneku kumathandiza alimi kusunga zokolola ndi kusamalira bwino udzu.

Kukhazikitsidwa kwa 2,4-D pazaulimi kwathandizira kwambiri zokolola komanso luso laulimi. Komabe, kugwiritsa ntchito kwake sikungatsutsidwe. Kudetsa nkhawa za momwe chilengedwe chimakhudzira komanso kuopsa kwa thanzi lapangitsa kuti pakhale kafukufuku wambiri komanso kuunikanso malamulo. Ochita kafukufuku adafufuza zotsatira za 2,4-D pazamoyo zomwe sizimakhudzidwa, kuphatikizapo tizilombo topindulitsa ndi zamoyo zam'madzi, komanso kugwirizana kwake ndi nkhani zaumoyo wa anthu.

Pofuna kuthana ndi zovutazi, mabungwe olamulira apanga malangizo ogwiritsira ntchito 2,4-D kuti atsimikizire kuti angagwiritsidwe ntchito moyenera ndikuchepetsa zoopsa. Kuphatikiza apo, kupita patsogolo kwaukadaulo wakupanga kwapangitsa kuti pakhale njira zogwiritsiridwa ntchito kwambiri, zomwe zikuchepetsanso kukula kwa chilengedwe cha mankhwala ophera udzu.

Mwachidule, 780-69-8 kapena 2,4-D imagwira ntchito yofunika kwambiri paulimi wamakono, kupereka udzu wothandiza komanso kudzutsa nkhani zofunika zachitetezo ndi kukhazikika. Ndi kukula kosalekeza kwa minda, kufufuza kosalekeza ndi kasamalidwe koyenera ndi kofunikira kwambiri pakuwunika ubwino ndi kuopsa kwa mankhwalawa.