Theralytic sensor imathandiza alimi kusamalira kugwiritsa ntchito feteleza

Ukadaulo wa Smart sensor womwe ungathandize alimi kugwiritsa ntchito feteleza bwino komanso kuchepetsa kuwonongeka kwa chilengedwe.
Umisiriwo, wofotokozedwa m’magazini a Natural Foods, ungathandize olima kudziŵa nthaŵi yabwino yothira feteleza ku mbewu ndi kuchuluka kwa feteleza wofunikira, poganizira zinthu monga nyengo ndi nthaka. Izi zidzachepetsa kuchulukitsitsa kwa nthaka kokwera mtengo komanso kowononga chilengedwe, komwe kumatulutsa mpweya wowonjezera wa nitrous oxide ndikuipitsa nthaka ndi madzi.
Masiku ano, kuthira feteleza mopitirira muyeso kwapangitsa 12% ya nthaka yomwe inali yolimapo kale kukhala yosagwiritsiridwa ntchito, ndipo kugwiritsa ntchito feteleza wa nitrogen kwakwera ndi 600% pazaka 50 zapitazi.
Komabe, ndizovuta kuti alimi azitha kuwongolera momwe amagwiritsidwira ntchito fetereza: kuchulukirachulukira ndipo amakhala pachiwopsezo chowononga chilengedwe ndikugwiritsa ntchito ndalama zochepa kwambiri ndipo amawononga zokolola zochepa;
Ofufuza paukadaulo watsopano wa sensor akuti zitha kupindulitsa chilengedwe komanso opanga.
Sensa, yotchedwa pepala-based chemically functionalized magetsi gas sensor (chemPEGS), imayesa kuchuluka kwa ammonium m'nthaka, chigawo chomwe chimasandulika kukhala nitrite ndi nitrate ndi mabakiteriya a nthaka. Zimagwiritsa ntchito mtundu wanzeru zopangira zomwe zimatchedwa kuphunzira makina, kuphatikiza ndi data yanyengo, nthawi kuyambira pakugwiritsa ntchito feteleza, kuyeza kwa nthaka pH ndi madulidwe. Imagwiritsa ntchito detayi kuneneratu kuchuluka kwa nayitrogeni m'nthaka pano komanso kuchuluka kwa nayitrogeni masiku 12 mtsogolomo kuneneratu nthawi yabwino yothira feteleza.
Kafukufukuyu akuwonetsa momwe njira yatsopanoyi yotsika mtengo ingathandizire alimi kuti apindule kwambiri ndi feteleza wocheperako, makamaka wa mbewu zogwiritsa ntchito feteleza monga tirigu. Ukadaulo uwu ukhoza kuchepetsa nthawi imodzi mtengo wa opanga komanso kuwonongeka kwa chilengedwe kuchokera ku feteleza wa nayitrogeni, mtundu womwe amagwiritsidwa ntchito kwambiri wa feteleza.
Wofufuza wamkulu Dr Max Greer, wa ku Dipatimenti ya Bioengineering ku Imperial College London anati: "Vuto la feteleza mopitirira muyeso, kuchokera ku chilengedwe ndi zachuma, silinganenedwe mopambanitsa. Zokolola ndi ndalama zogwirizana nazo zikuchepa chaka ndi chaka. Chaka chino, ndipo opanga alibe zipangizo zofunika kuthetsa vutoli.
“Ukatswiri wathu ungathandize alimi kumvetsa mmene ammonia ndi nitrate alili m’nthaka ndi kuneneratu za mmene nyengo zidzakhalire m’tsogolo.” Zimenezi zimawathandiza kuti azitha kukonza bwino feteleza wawo kuti agwirizane ndi zosowa za nthaka ndi mbewu zawo.”
Feteleza wa nayitrojeni wochulukirachulukira amatulutsa nitrous oxide mumlengalenga, mpweya wowonjezera kutentha kuwirikiza ka 300 kuposa mpweya woipa wa carbon dioxide ndipo umayambitsa mavuto a nyengo. Manyowa ochulukirapo amathanso kukokoloka ndi madzi amvula kulowa m'mitsinje, kulepheretsa zamoyo zam'madzi mpweya, kuchititsa maluwa a algae ndikuchepetsa zamoyo zosiyanasiyana.
Komabe, kusintha moyenera feteleza kuti agwirizane ndi nthaka ndi zosowa za mbewu kumakhalabe kovuta. Kuyeza n’kosowa, ndipo njira zamakono zoyezera nayitrogeni m’nthaka zikuphatikizapo kutumiza zitsanzo za nthaka ku labotale—njira yotalikirapo ndiponso yodula kwambiri imene zotsatira zake zimakhala zosagwiritsidwa ntchito mochepa pofika alimi.
Dr Firat Guder, wolemba wamkulu komanso wofufuza wamkulu mu dipatimenti ya Imperial ya Bioengineering, adati: "Zakudya zathu zambiri zimachokera kunthaka - ndizinthu zosasinthika ndipo ngati sitiziteteza tidzataya. phindu.”