Zosewerera nthaka zatsopano zingathandize kuti feteleza wa mbewu ugwire bwino ntchito

Feteleza wokhala ndi nayitrogeni amagwiritsidwa ntchito kuonjezera kupanga chakudya, koma mpweya woipa womwe umatuluka umatha kuipitsa chilengedwe. Kuti zinthu zigwiritsidwe ntchito bwino, kukweza zokolola zaulimi, komanso kuchepetsa zoopsa zachilengedwe, kuyang'anira mosalekeza komanso nthawi yeniyeni zinthu za nthaka, monga kutentha kwa nthaka ndi kutulutsa feteleza, ndikofunikira. Chojambulira cha zinthu zambiri chimafunika paulimi wanzeru kapena wolondola kuti utsatire mpweya woipa wa NOX ndi kutentha kwa nthaka kuti ukhale ndi feteleza wabwino kwambiri.

James L. Henderson, Jr. Memorial Pulofesa Wachiwiri wa Sayansi ndi Makanika a Uinjiniya ku Penn State Huanyu “Larry” Cheng adatsogolera kupanga sensa ya multi-parameter yomwe imalekanitsa bwino zizindikiro za kutentha ndi nayitrogeni kuti athe kuyeza molondola chilichonse.

Cheng anati,"Kuti feteleza ikhale yothandiza, pakufunika kuyang'anira nthawi zonse momwe nthaka ilili, makamaka kugwiritsa ntchito nayitrogeni ndi kutentha kwa nthaka. Izi ndizofunikira poyesa thanzi la mbewu, kuchepetsa kuipitsa chilengedwe, komanso kulimbikitsa ulimi wokhazikika komanso wolondola."

Kafukufukuyu cholinga chake ndi kugwiritsa ntchito kuchuluka koyenera kuti mbewu zibereke bwino. Kupanga kwa mbewu kungakhale kotsika kuposa momwe kungakhalire ngati nayitrogeni wochuluka agwiritsidwa ntchito. Feteleza ikagwiritsidwa ntchito mopitirira muyeso, imawonongeka, zomera zimatha kuwotcha, ndipo utsi wa nayitrogeni woopsa umatulutsidwa m'chilengedwe. Alimi amatha kufikira milingo yoyenera ya feteleza kuti zomera zikule bwino mothandizidwa ndi kuzindikira molondola kuchuluka kwa nayitrogeni.

Wolemba Li Yang, pulofesa mu Sukulu ya Luntha Lochita Kupanga ku Hebei University of Technology ku China, anati,"Kukula kwa zomera kumakhudzidwanso ndi kutentha, komwe kumakhudza njira zakuthupi, mankhwala, ndi tizilombo toyambitsa matenda m'nthaka. Kuyang'anira mosalekeza kumathandiza alimi kupanga njira ndi njira zothandizira kutentha kwambiri kapena kuzizira kwambiri kwa mbewu zawo."

Malinga ndi Cheng, njira zodziwira kutentha zomwe zingapeze mpweya wa nayitrogeni ndi muyeso wa kutentha sizimanenedwa kawirikawiri. Mpweya ndi kutentha zonse ziwiri zimatha kuyambitsa kusiyana kwa kukana kwa sensa, zomwe zimapangitsa kuti zikhale zovuta kusiyanitsa pakati pawo.

Gulu la Cheng linapanga sensa yogwira ntchito bwino kwambiri yomwe imatha kuzindikira kutayika kwa nayitrogeni popanda kutentha kwa nthaka. Sensayi imapangidwa ndi thovu la graphene lopangidwa ndi vanadium oxide, lopangidwa ndi laser, ndipo zapezeka kuti kugwiritsa ntchito ma doping metal complexes mu graphene kumathandiza kuti mpweya uzilowa bwino komanso kuti munthu azitha kuzindikira bwino.

Popeza nembanemba yofewa imateteza sensa ndikuletsa mpweya wa nayitrogeni kulowa, sensayo imangochitapo kanthu kusintha kwa kutentha. Sensayo ingagwiritsidwenso ntchito popanda kuphimba ndi kutentha kwambiri.

Izi zimathandiza kuyeza molondola mpweya wa nayitrogeni mwa kuchotsa zotsatira za chinyezi ndi kutentha kwa nthaka. Kutentha ndi mpweya wa nayitrogeni zitha kulekanitsidwa kwathunthu komanso popanda kusokonezedwa pogwiritsa ntchito masensa otsekedwa komanso osatsekedwa.

Wofufuzayo anati kusiyanitsa kusintha kwa kutentha ndi mpweya wa nayitrogeni kungagwiritsidwe ntchito popanga ndikugwiritsa ntchito zida zambiri zokhala ndi njira zolumikizirana kuti ulimi ukhale wolondola nthawi zonse.

Cheng anati, “Kutha kuzindikira nthawi imodzi kuchuluka kwa nitrogen oxide komwe kumakhala kochepa kwambiri komanso kusintha pang'ono kwa kutentha kumatsegula njira yopangira zida zamagetsi zamagetsi zamtsogolo zomwe zili ndi njira zodziwira bwino ulimi, kuyang'anira thanzi, ndi ntchito zina.”

Kafukufuku wa Cheng adathandizidwa ndi National Institutes of Health, National Science Foundation, Penn State, ndi Chinese National Natural Science Foundation.