Intshayelelo: Isithembiso sokulinganisa izakhamzimba kwangoko
I-Nitrogen (N), i-Phosphorus (P), kunye ne-Potassium (K) – ezona macronutrients zibalulekileyo ezintathu zokuxhasa ubomi bezityalo obusempilweni. Kude kube kutshanje, ukhetho olulodwa lokulinganisa ezi zondlo zibalulekileyo yayikukuthumela isampuli yakho kwilebhu ukuze ihlalutywe. Le nkqubo ngelishwa ibiza kakhulu, inzima, kwaye ayikhawulezi. Ngenxa yoko, kukho imfuno enkulu yezixhobo ezikhawulezayo, ezikwindawo ethile ezinokukwazi ukubuyisela iziphumo ngokukhawuleza ebaleni.
Isikhokelo esingezantsi siza kuhlalutya iindidi eziphambili zee-sensors ze-NPK ezikhoyo kwimarike namhlanje, sigqamise ukuba zeziphi iiteknoloji ezisisiseko ezisetyenziswayo, iimpawu zazo eziphambili, kunye nomahluko osisiseko wesayensi phakathi kwezo zikwaziyo ukulinganisa amazinga e-ionic ngamnye kunye nezo zingalinganiyo.
1. IiSensors zeElectrochemical: Ukulinganisa i-Ion ngqo ukuze kube nokuchaneka okuphezulu
Udidi lobuchwepheshe be-NPK sensor oluqinileyo ngokwesayensi luphantsi kwee-electrochemical sensors - ngakumbi, ii-Ion-Selective Electrodes (ISE) ezilinganisa uxinaniso kunye nemisebenzi yee-ion ezithile kwisisombululo.
Amandla: Ukukhetha, Ukuphinda-phinda, Ukuchaneka: Ezi sensor zinokwenziwa zikhethe kakhulu kwii-ion ezithile, okuvumela uqikelelo oluchanekileyo olunokwenzeka lwee-ion concentrations phakathi kweentlobo zee sensor eziphathwayo.
Ubuthathaka: Alusebenzi Emsebenzini: Nangona zikhetha, ezi sensor azisebenzi emsebenzini. Azibizi nje kuphela, kodwa zihlala zifuna izisombululo ezongezelelweyo zeekhemikhali ukuze zisebenze, kwaye ukuqina kwazo ngokubanzi akwanelanga ukusetyenziswa ixesha elide. Uninzi lwee sensor ze-electrochemical azinakuze zingcwatywe emhlabeni ukuze zilinganiswe kwindawo ethile, nto leyo eyenza zingathembeki ekuqondeni ngokuchanekileyo, ngokubanzi, ngexesha langempela.
2. I-Spectroscopy: Indlela yokubona
Le ndlela yesenzi isebenzisa imigaqo ye-optical spectroscopy ukuqikelela iikhompawundi kwisisombululo. Ngamafutshane, i-spectrometer ixhomekeke kwindlela ukukhanya okunxibelelana ngayo nomphezulu wesampuli yomhlaba, kunye nendlela oko kubonakalisa, ukufunxa, okanye ukuhambisa ngayo ukukhanya kutshintsha ngenxa yokubakho kwekhompawundi ethile.
Amandla: Ayitshabalalisi, Iyaphatheka: Le ndlela ayitshabalalisi kwaye ingasetyenziswa kwizixhobo eziphathwayo nezingabizi kakhulu ukuze kuhlalutywe ngokukhawuleza ngaphandle kwee-reagents.
Ubuthathaka: Iziphumo ezingahambelaniyo: Ezi sensors nazo zinokuba neziphumo ezingahambelaniyo. Ukuchaneka kwazo kunokuchaphazeleka kakhulu zizinto zangaphandle ezifana nobume bomhlaba. Ngaphezu koko, ezinye iindlela zokujonga zokulinganisa i-NPK zisaxhomekeke ekuhlalutyeni ii-reagents zeekhemikhali, ezifana nenkqubo yelebhu, kodwa ngendlela ephathwayo ngakumbi.
3. IiSensors ze-Electrical Conductivity (EC): IiProbes ze-“NPK” ezixhaphakileyo
Imarike yee-sensors ze-'NPK' ezingabizi kakhulu nezinamacala amaninzi iyanda kakhulu, kodwa yeyiphi iteknoloji ebangela ezi probes zincinci nezifikelelekayo eziphathwayo? Ngamafutshane, i-electrical conductivity, okanye i-EC.
Iisensa ze-EC ezinamacala amabini ukuya kwayi-5 eziphathwa ngesandla zisebenza ngokudlulisa umsinga wombane wangaphandle phakathi kwamanqaku amabini oqhagamshelwano (iiprong zesinyithi) emhlabeni, kwaye zilinganisa ukuba loo msinga ufikelela lula kangakanani kwelinye icala. Ngokwetekhnoloji, oku kukulinganisa ukuqhutywa kombane okubonakalayo komhlaba, okanye i-ECa, AKA, amandla awo okuqhuba umbane.
Kutheni umbane udlula emhlabeni? Zonke izinto eziqhuba umbane ziqulathe ii-ion, okanye iimolekyuli ezithwala itshaja yombane. Emhlabeni, ezi i-ion ziqokelelana emanzini omhlaba xa iityuwa ezahlukeneyo zinyibilika kuwo.
Nantsi ke into ebalulekileyo: I-conductivity probe ayilinganisi ubukho be-NPK ngokukodwa. Ilinganisa zonke ii-ion ezikhoyo emanzini omhlaba. Awunakusebenzisa imveliso evela kwi-EC probe esisiseko ukwenza uqikelelo malunga nee-ion ezithile. Ngoko ke, ezi azizo ii-sensors ze-NPK zomhlaba zokwenyani.
Amandla: Ixabiso, Ubulula:
Okokuqala nokubalulekileyo, ezi zi-NPK sensors ezingabizi kakhulu, ngoko ke, zifumaneka lula kwiimarike ezinkulu.
Kulula kakhulu ukuzisebenzisa kwaye zibuyisela ukufundwa okulula kunye nokuseta okuncinci.
Iiprobe zihlala zenziwe ngezinto ezihlala ixesha elide nezimelana nokugqwala ezifanelekileyo ukusetyenziswa ngokuphindaphindiweyo ebaleni.
Umda Obalulekileyo: Akukho Ukukhetha kwe-Ion:
Ukuchaneka kwazo malunga ne-ion ethile ngumda owaziwayo.
Ngokutsho kophononongo lweencwadi zobugcisa, “Akumangalisi ukuba umlinganiselo uphenjelelwa kakhulu zezinye iiparameter zomhlaba ezingadibaniyo, kubandakanya umxholo womswakama womhlaba, i-pH, ityuwa, ubunjani, kunye nokwakheka kweekhemikhali ngokubanzi.” Enye incwadi yomsebenzisi we-NPK sensor ithi isebenzisa “indlela yokubona ngokukhawuleza ngokubanzi, ngoko ke kukho iimpazamo ezithile” kwaye kufuneka isetyenziswe “ngononophelo xa kujongwa ukutyala.”
Isiphelo: Intengiselwano Ecacileyo Yokusetyenziswa Okusebenzayo
Xa kufikwa kwiisensa ze-NPK zomhlaba, kukho umahluko ocacileyo phakathi kwexabiso lesensa kunye nokukhetha okubalulekileyo kokulinganisa ngexesha langempela. Itekhnoloji yesensa ye-electrochemical iya kubonelela ngedatha ethembekileyo, kodwa ibiza kakhulu kwaye ayisebenzi ukusetyenziswa kwemihla ngemihla, ngelixa itekhnoloji yesensa ye-optical
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