A wasu lokuta na lokacin noman dankalin turawa, dole ne masu noman dankalin turawa su rika lura da yanayin nitrogen na amfanin gonakinsu a kai a kai domin yin amfani da taki ta hanya mafi inganci.
Al'adar gama gari ita ce tattara ganye daga tsirrai a kowane fanni sannan a tura su zuwa dakin gwaje-gwaje don tantance nitrate. A cikin ƴan kwanaki, masu noman suna karɓar sakamakon da ke nuna ko ana buƙatar ƙarin takin nitrogen ko kuma idan aikin ya kasance na al'ada. Tsarin yana aiki, amma ana iya haɓaka wannan tsari, in ji shi I. Wang, docent Jami'ar Wisconsin-Madison, Sashen Noma.
"Tattara ganye yana ɗaukar lokaci mai yawa da ƙoƙari," in ji Wang.
“Kuma a wasu lokuta sakamakon na iya zama yaudara saboda yawan nitrates a cikin ganyen na iya yin tasiri da abubuwa da yawa, kamar yanayin yanayi ko lokacin yin samfur. Bugu da ƙari, sakamakon ba ya la'akari da bambance-bambancen sararin samaniya [buƙatun nitrogen] a cikin filin."
Tallafin aikin Cibiyar Abinci da Aikin Noma ta USDA, ya ƙunshi tattarawa da sarrafa bayanai daga kyamarar hyperspectral. An shigar da shi a kan UAV (motar da ba ta da matuƙa) ko jirgin sama mai saukar ungulu wanda ke shawagi a kan wuraren dankalin turawa da aka yi nazari.
Tawagar Wang tana haɓaka ƙirar kwamfuta don haɗa hotuna zuwa yanayin shuka nitrogen, yawan amfanin ƙasa, inganci, da dawowar tattalin arzikin ƙarshen kakar.
"Ni da ma'aikata na muna fatan inganta shirin kan layi wanda zai canza hotuna masu ban mamaki zuwa bayanai game da lokaci da nawa za a yi takin don masu noman za su iya samun riba tare da ƙarancin tasirin muhalli," in ji Wang.
"Abubuwan da ke haifar da canje-canje a cikin yanayin alfarwa, irin su yanayin abinci mai gina jiki, kasancewa da rashin danshi ko cuta, suna da alaƙa da hangen nesa don haka ana iya ganin su a cikin hotuna masu ban mamaki," in ji Trevor Crosby, dalibin digiri a Wang's lab.
A cikin jirgin guda daya sama da filin bincike mai tsawon mita 70 zuwa 150, ana iya tattara hotuna da dama, kowanne yana dauke da daruruwan makada. Don hanzarta sarrafa hotuna, Wang ya dauki hayar ma'aikata guda biyu. Phil Townsend, Farfesa na ilimin daji da namun daji, jagora ne a fasahar sanin nesa. Paul Mitchell, Farfesa da Kwararre a Ma'aikatar Aikin Noma da Harkokin Tattalin Arziki, ya gudanar da nazarin tattalin arziki daga abin da samfurin kwamfuta ya ba da shawarwari don amfani da nitrogen.
Crosby, yana jagorantar ma'aunin ƙasa, ya tattara bayanai daga wuraren binciken filin a matakai daban-daban na girma dankalin turawa. Wannan ya hada da ma'aunin yanki na ganye, jimlar nitrogen a cikin ganye da mai tushe, adadin tubers da nauyin kowane tubers, da abubuwan muhalli kamar danshi na ƙasa da zafin jiki, hasken rana, da saurin iska. A girbi, yana auna yawan amfanin ƙasa na tubers da girman su.
Crosby sannan ya ɓullo da ingantattun samfura waɗanda ke haɗa hotuna masu ƙarfi zuwa ma'aunin tushen ƙasa. Manufar ita ce a hango yanayin yanayin nitrogen na amfanin gona a cikin ainihin lokacin da tsinkaya yawan amfanin gona na tubers a ƙarshen kakar wasa. A wannan gaba, aikin filin da sarrafa hoto ya cika, kuma Crosby yana mai da hankali kan haɓaka samfuri.
Wang ya ba da labarin bincikensa tare da masu noman dankalin turawa da kayan lambu na jihar. Yana da kyakykyawar alaka da manoma a fadin jihar kuma da dama na fatan ganin sakamakon binciken da ya gudanar.