Kuyera tembiricha uye huwandu hwenitrogen muvhu kwakakosha kune masisitimu ekurima.
Fetereza ine nitrogen inoshandiswa kuwedzera kugadzirwa kwechikafu, asi utsi hwayo hunogona kusvibisa nharaunda. Kuti zviwanikwe zviwanikwa zvakawanda, kuwedzera goho rekurima, uye kuderedza njodzi dzezvakatipoteredza, kutarisisa nguva dzose uye panguva chaiyo kwehunhu hwevhu, senge tembiricha yevhu uye kuburitswa kwefetereza, kwakakosha. Sensor ye multi-parameter inodiwa kuti kurima kwakangwara kana kwakanyatsojeka kutevere kuburitswa kwegasi reNOX uye tembiricha yevhu kuti pave nekuberekesa kwakanakisa.
James L. Henderson, Jr. Memorial Associate Purofesa weUinjiniya Sainzi neMechanics kuPenn State Huanyu “Larry” Cheng akatungamira kugadzirwa kwesensa ine maparameter akawanda inoparadzanisa zvinobudirira zviratidzo zvekupisa nenitrogen kuti ibvumire kuyerwa kwakarurama kwechimwe nechimwe.
Cheng akati,"Kuti ivhu rive nefetereza inoshanda, pane chikonzero chekutarisa mamiriro evhu nguva nenguva, kunyanya kushandiswa kwenitrogen uye tembiricha yevhu. Izvi zvakakosha pakuongorora hutano hwezvirimwa, kuderedza kusvibiswa kwezvakatipoteredza, uye kukurudzira kurima kunoenderera mberi uye kwakarurama."
Chidzidzo ichi chine chinangwa chekushandisa huwandu hwakakodzera kuti goho rezvirimwa rive rakanaka. Goho rezvirimwa rinogona kunge rakaderera pane zvaringave kana nitrogen yakawanda ikashandiswa. Kana fetereza ikashandiswa zvakanyanya, inoraswa, zvirimwa zvinogona kutsva, uye utsi hwenitrogen hune chepfu hunoburitswa munzvimbo yakakomberedza. Varimi vanogona kusvika padanho rakakodzera refetireza yekukura kwezvirimwa nerubatsiro rwekuona huwandu hwenitrogen nemazvo.
Munyori pamwe chete Li Yang, purofesa muChikoro cheArtificial Intelligence paHebei University of Technology kuChina, akati,"Kukura kwezvirimwa kunokanganiswawo nekupisa, izvo zvinopesvedzera maitiro emuviri, makemikari, uye tupukanana muvhu. Kugara uchitarisa kunoita kuti varimi vagadzire nzira dzekugadzirisa kana tembiricha ichipisa zvakanyanya kana kuti ichitonhora zvakanyanya kune zvirimwa zvavo."
Sekureva kwaCheng, nzira dzekunzwa dzinogona kuwana nitrogen gasi uye kuyerwa kwetembiricha pasina mumwe nemumwe hazviwanzotaurwa. Magasi netembiricha zvinogona kukonzera kusiyana kwekuverenga kwekudzivirira kwesensa, zvichiita kuti zviome kusiyanisa pakati pazvo.
Chikwata chaCheng chakagadzira sensor inoshanda zvakanyanya inogona kuona kurasikirwa kwenitrogen pasina kudzvanywa nekupisa kwevhu. Sensor iyi yakagadzirwa nefoam yevanadium oxide, inokonzerwa nelaser-induced graphene, uye zvakaonekwa kuti doping metal complexes mugraphene inovandudza kunyudzwa kwegasi uye kunzwa kwekuonekwa.
Nekuti membrane yakapfava inodzivirira sensor uye inodzivirira kupinda kwegesi yenitrogen, sensor inongopindura chete kana tembiricha yachinja. Sensor inogona zvakare kushandiswa isina kuvharwa uye patembiricha yakakwira.
Izvi zvinoita kuti pave nekuyera kwakarurama gasi renitrogen nekubvisa migumisiro yehunyoro nekupisa kwevhu. Tembiricha negasi renitrogen zvinogona kupatsanurwa zvachose uye zvisina kukanganiswa uchishandisa masensa akavharirwa uye asina kuvharwa.
Muongorori akati kupatsanura kushanduka kwetembiricha uye kuburitswa kwegesi ine nitrogen zvinogona kushandiswa kugadzira nekushandisa michina ine nzira dzakasiyana dzekunzwa kuti kurima kwakanyatsonaka mumamiriro ese ekunze.
Cheng akati, "Kugona kuona panguva imwe chete huwandu hwenitrogen oxide hwakaderera zvakanyanya uye shanduko diki dzekupisa zvinovhura nzira yekugadzirwa kwezvishandiso zvemagetsi zvemazuva ano zvine nzira dzakasiyana dzekuona kurima kwakanyatsojeka, kutarisa hutano, nezvimwe zvinoshandiswa."
Tsvagiridzo yaCheng yakatsigirwa nemari neNational Institutes of Health, National Science Foundation, Penn State, pamwe neChinese National Natural Science Foundation.
Chinyorwa cheNhau:
Li Yang.Chuizhou Meng, nevamwe.Vanadium Oxide-Doped Laser-Induced Graphene Multi-Parameter Sensor to Decouple Soil Nitrogen Loss and Temperature.Enquirement Advance. DOI: 10.1002/adma.202210322
Nguva yekutumira: Kubvumbi-10-2023