Kodi Sensor ya Chinyezi cha Dothi Ndi Chiyani Muyenera Kudziwa

Kodi Soil Sensor ndi chiyani?

Chinyezi cha nthaka chikutanthauza chinyezi cha nthaka. Paulimi, zinthu zomwe zili m'nthaka sizingathe kupezedwa mwachindunji ndi mbewu zokha, ndipo madzi a m'nthaka amakhala ngati zosungunulira kuti asungunuke zinthu izi. Mbewu zimayamwanthaka chinyezikudzera mu mizu yawo, kupeza zakudya ndi kulimbikitsa kukula. Pakukula ndi kukula kwa mbewu, chifukwa cha mitundu yosiyanasiyana, zofunika pakutentha kwa nthaka, madzi ndi mchere zimasiyananso. Chifukwa chake, masensa a nyimbo nthawi zonse, monga kutentha ndi chinyezi komanso masensa a chinyezi cha nthaka, amafunikira kuwunikira zinthu zachilengedwe izi. Choncho Soil Sensor ndi Sensor kapena Meter yoyeza kutentha ndi chinyezi cha nthaka.

Ogwira ntchito zaulimi amawadziwa bwinomasensa chinyezi nthaka, koma pali zovuta zambiri pakusankha ndi kugwiritsa ntchito zowunikira chinyezi m'nthaka. Nawa mafunso odziwika bwino okhudza zowunikira chinyezi m'nthaka.

Ma sensor omwe amagwiritsidwa ntchito kwambiri pamsika ndi TDR nthaka chinyezi sensor ndi FDR nthaka chinyezi sensor.

Ndiye Kodi Soil Moisture Sensor ndi Chiyani?

Sensa ya chinyezi m'nthaka ndi chipangizo chomwe chimagwiritsidwa ntchito kuyeza kuchuluka kwa chinyezi kapena madzi m'nthaka. Limapereka chidziwitso cha kuchuluka kwa madzi omwe ali m'nthaka, omwe ndi ofunikira pa ulimi wothirira bwino komanso kusamalira thanzi la zomera.

Sensa nthawi zambiri imakhala ndi ma probe awiri achitsulo omwe amalowetsedwa pansi. Dothi likauma, limakhala ndi mphamvu yolimbana ndi magetsi. Pamene chinyezi cha nthaka chikuwonjezeka, kutsekemera kwa magetsi kapena magetsi kumachepa. Sensa imayesa kukana pakati pa ma probe awiri, ndipo kutengera muyeso uwu, imatsimikizira kuchuluka kwa chinyezi cha nthaka.

Masensa a chinyezi cha dothi amagwiritsidwa ntchito pazinthu zosiyanasiyana, kuphatikiza ulimi, ulimi wamaluwa, kulima dimba, ndi kuyang'anira chilengedwe. Amathandiza alimi ndi olima dimba kukhathamiritsa kagwiritsidwe ntchito ka madzi popereka zidziwitso zenizeni zenizeni za kuchuluka kwa chinyezi m'nthaka. Chidziwitsochi chimawathandiza kupanga zisankho zomveka bwino za nthawi ndi kuchuluka kwa kuthirira, kuteteza kuthirira kapena kuthirira mbewu.

Ma sensor ena a chinyezi m'nthaka amalumikizidwa ndi njira zothirira zodziwikiratu, zomwe zimalola kuwongolera bwino kwa kuthirira potengera kuwerengera kwa chinyezi nthawi yeniyeni. Makinawa amathandiza kusunga madzi komanso amathandizira kuti zomera zikule bwino poonetsetsa kuti zomera zimalandira madzi okwanira pa nthawi yoyenera.

Ponseponse, mpaka pano mukudziwa kuti zowunikira za chinyezi m'nthaka zimagwira ntchito yofunika kwambiri pakuwongolera madzi, kuteteza zachilengedwe, kukonza zokolola, ndikulimbikitsa ulimi wokhazikika.

1. Kodi Sensor ya Chinyezi cha Dothi Imagwira Ntchito Motani?

Kodi Sensor ya Chinyezi cha Dothi ndi chiyani?

Sensa ya chinyezi m'nthaka imagwira ntchito poyeza mphamvu yamagetsi kapena kukana kwa nthaka, zomwe zimagwirizana mwachindunji ndi chinyezi. Naku kulongosola kosavuta momwe zimagwirira ntchito:

1. Zofufuza:Kachipangizo kakang'ono ka chinyezi m'nthaka kumakhala ndi ma probes awiri achitsulo, omwe nthawi zambiri amakhala opangidwa ndi chitsulo chosapanga dzimbiri kapena zinthu zina zosapanga dzimbiri. Ma probe awa amalowetsedwa m'nthaka mozama momwe amafunira.

2.Magetsi:Sensa imagwirizanitsidwa ndi dera lamagetsi lomwe limapanga magetsi ang'onoang'ono pakati pa ma probes.

3. Muyezo wa chinyezi:Dothi likauma, limakhala ndi conductivity yochepa komanso kukana kwambiri kwa magetsi. Pamene chinyezi cha nthaka chikuwonjezeka, kutsekemera kwa magetsi kapena magetsi kumachepa.

4. Muyeso wa kukaniza:Dera lamagetsi limayesa kukana pakati pa ma probe awiri. Kukana uku kumasinthidwa kukhala chinyontho chofananira pogwiritsa ntchito ma equation a calibration kapena matebulo oyang'ana.

5. Zotulutsa:Mulingo wa chinyezi umawonetsedwa kapena kutumizidwa ku chipangizo monga microcontroller, data logger, kapena controller system yothirira. Izi zimathandiza ogwiritsa ntchito kuwunika kuchuluka kwa chinyezi m'nthaka munthawi yeniyeni.

Ndikofunika kuzindikira zimenezomasensa chinyezi nthakaatha kugwiritsa ntchito njira kapena matekinoloje osiyanasiyana kuyeza kuchuluka kwa chinyezi. Mwachitsanzo, masensa ena amagwiritsa ntchito miyeso yotengera mphamvu kapena amagwiritsa ntchito mfundo za frequency domain reflectometry (FDR). Komabe, mfundo yaikulu imakhalabe yofanana: kuyeza mphamvu zamagetsi za nthaka kuti mudziwe kuchuluka kwa chinyezi.

Ndipo Komanso Muyenera Kusamala kulondola ndi kudalirika kwa masensa a chinyezi cha nthaka amatha kusiyanasiyana kutengera zinthu monga mtundu wa sensa, kapangidwe ka dothi, ndi ma calibration. Kusanja pafupipafupi komanso kuyika koyenera kwa ma sensor probes pamalo omwe mukufuna muzu ndikofunikira kuti muwerenge molondola.

FDR imayimira frequency domain reflection, yomwe imagwiritsa ntchito mfundo ya electromagnetic pulse. Dothi lowoneka ngati dielectric (ε) limayesedwa molingana ndi kuchuluka kwa mafunde a electromagnetic kufalikira pakati, ndipo kuchuluka kwa madzi m'nthaka (θv) kumapezeka. Sensa ya chinyezi cha nthaka ya HENGKO imatengera mfundo ya FDR, ndipo malonda athu ali ndi ntchito yabwino yosindikizira, yomwe imatha kukwiriridwa mwachindunji m'nthaka kuti igwiritsidwe ntchito, ndipo sichimawonongeka. Kulondola kwa kuyeza kwakukulu, magwiridwe antchito odalirika, kuonetsetsa kuti magwiridwe antchito abwinobwino, kuyankha mwachangu, kuyendetsa bwino kwambiri kwa data.

TDR imatanthauza chiwonetsero cha nthawi, chomwe ndi mfundo yodziwika bwino yozindikira chinyezi chanthaka. Mfundo yake ndi yakuti ma waveform pa mizere yopatsirana yosagwirizana amawonekera. Mawonekedwe a waveform pamtundu uliwonse pamzere wopatsira ndi mawonekedwe apamwamba a mawonekedwe oyambira komanso mawonekedwe owonekera. Zida za TDR zili ndi nthawi yoyankha pafupifupi masekondi 10-20 ndipo ndizoyenera kuyeza zam'manja ndikuwunika malo.

2. Mitundu Yotulutsa Sensor ya Chinyezi cha Dothi?

Masensa a chinyezi cha dothi amatha kupereka mitundu yosiyanasiyana ya zotulutsa kutengera mtundu wa sensor komanso zofunikira zomwe zimagwiritsidwa ntchito. Nayi mitundu yodziwika bwino yochokera ku zowunikira chinyezi m'nthaka:

1. Zotsatira za analogi:Masensa ambiri a chinyezi m'nthaka amapereka chizindikiro cha analogi, chomwe chimakhala ngati magetsi kapena magetsi. Mtengo wotulutsa umagwirizana mwachindunji ndi chinyezi m'nthaka. Ogwiritsa ntchito amatha kulumikiza sensa ku cholembera cha analogi pa microcontroller kapena logger ya data, kumene amatha kuwerenga ndi kukonza chizindikiro cha analogi kuti apeze mlingo wa chinyezi.

2. Kutulutsa kwa digito:Masensa ena a chinyezi m'nthaka amakhala ndi digito, monga chizindikiro cha binary kapena njira ina yolumikizirana. Masensa a digito nthawi zambiri amagwiritsa ntchito njira yolowera pakhomo, pomwe amapereka chizindikiro cha digito HIGH kapena LOW kuti asonyeze ngati mlingo wa chinyezi cha nthaka uli pamwamba kapena pansi pa malo enaake. Kutulutsa kotereku kumagwiritsidwa ntchito kwambiri pamakina odzipangira okha kapena pofufuza mosavuta chinyezi.

3. Kutulutsa opanda zingwe:Masensa ena a chinyezi m'nthaka ali ndi zida zolumikizirana opanda zingwe, zomwe zimawalola kutumiza chidziwitso cha chinyezi popanda zingwe kwa wolandila kapena makina owunikira. Kutulutsa kopanda zingwe kumeneku kumatha kukhala ngati Bluetooth, Wi-Fi, Zigbee, LoRa, kapena ma protocol ena opanda zingwe, zomwe zimathandizira kuyang'anira kutali ndikuwongolera kuchuluka kwa chinyezi m'nthaka.

4. Kutulutsa kwa data:Masensa ena apamwamba a chinyezi cha nthaka amapangidwa ndi luso lolowetsa deta. Masensa awa amatha kusunga zowerengera za chinyezi mkati pakapita nthawi. Ogwiritsa ntchito amatha kubwezanso deta kuchokera ku sensa, mwina poyilumikiza mwachindunji pakompyuta kapena pogwiritsa ntchito memori khadi kapena USB drive. Mtundu woterewu ndiwothandiza kwambiri pakuwunika kwanthawi yayitali ndikuwunika momwe nthaka imayendera.

5. Chiwonetsero:Masensa ena a chinyezi ali ndi mawonekedwe ophatikizika, monga chophimba cha LCD, chomwe chimawonetsa kuwerengera kwa chinyezi. Kutulutsa kotereku ndikosavuta kuwunika mwachangu patsamba popanda kufunikira kwa zida zowonjezera kapena zolumikizira.

6. Kuphatikiza pulogalamu ya Smartphone:Masensa ena amakono a chinyezi amatha kuphatikizidwa ndi mapulogalamu a smartphone. Masensa awa amatumiza chinyontho ku pulogalamu yam'manja yodzipereka kudzera pa Bluetooth kapena Wi-Fi. Ogwiritsa ntchito amatha kuwona, kusanthula, ndikuwongolera kuchuluka kwa chinyezi m'nthaka mosavuta pamafoni awo.

Ndikofunikira kudziwa kuti kupezeka kwa mitundu iyi yotulutsa kumatha kusiyanasiyana kutengera mtundu wa sensor komanso wopanga. Ndikoyenera kuyang'ana zomwe zimaperekedwa ndi wopanga masensa kuti muwone zomwe zilipo komanso zogwirizana ndi pulogalamu yomwe mukufuna.

Zina Zotulutsa HENGKO zomwe zimagwiritsidwa ntchito pa Sensor Moisture Sensor

Mtundu wamagetsi Mtundu wamakono RS485 mtundu

Mphamvu yogwira ntchito 7 ~ 24V 12 ~ 24V 7 ~ 24V

Kugwira ntchito panopa 3～5mA 3～25mA 3～5mA

Chizindikiro chotulutsa Chizindikiro: 0～2V DC (0.4 ~ 2V DC ikhoza kusinthidwa) 0～20mA, (4～20mA ikhoza kusinthidwa) protocol ya MODBUS-RTU

HENGKO akuwonetsa kuti mfundo zotsatirazi ziyenera kutsatiridwa mukayika zomvera za chinyezi m'nthaka:

1.Kuyika kwa sensa yoyima: Ikani sensa ya madigiri 90 pansi kuti iyesedwe. Osagwedeza sensa panthawi yoyikapo kuti mupewe kupindika ndikuwononga sensor sensor.

2.Kuyika kopingasa kwa masensa angapo: Ikani masensa m'nthaka kuti ayesedwe mofanana. Njirayi imagwiritsidwa ntchito pozindikira chinyezi cha dothi la multilayer. Osagwedeza sensa pakuyika kuti mupewe kupindika kafukufuku wa sensor ndikuwononga singano yachitsulo.

3. Momwe mungawongolere Sensor ya Chinyezi cha Dothi pamapulojekiti anu aulimi?

Kuti musankhe sensa yoyenera ya chinyezi pama projekiti anu aulimi, mutha kulingalira izi:

1. Unikani zomwe mukufuna:Dziwani zomwe mukufuna komanso zolinga zanu. Ganizirani zinthu monga kukula kwa famu yanu, mitundu ya mbewu zomwe mumalima, ndi ulimi wothirira womwe mumagwiritsa ntchito. Kuunikaku kukuthandizani kuzindikira zofunikira ndi kuthekera kofunikira mu sensa ya chinyezi cha nthaka.

2. Zosankha zomwe zilipo:Onani mitundu yosiyanasiyana ya sensa ya chinyezi ndi mtundu. Yang'anani masensa omwe ali oyenera ntchito zaulimi ndikupereka miyeso yolondola komanso yodalirika. Ganizirani zinthu monga kulondola kwa sensa, kuchuluka kwa muyeso, kulimba, kuyika kosavuta, komanso kugwirizanitsa ndi zida kapena makina omwe alipo.

3. Kumvetsetsa ukadaulo wa sensor:Phunzirani za umisiri wosiyanasiyana womwe umagwiritsidwa ntchito pazidziwitso za chinyezi m'nthaka, monga kukana-based, capacitance-based, kapena frequency domain reflectometry (FDR). Tekinoloje iliyonse ili ndi zabwino zake ndi malingaliro ake, choncho sankhani yomwe ikugwirizana bwino ndi zosowa zanu, mtundu wa nthaka, ndi chilengedwe.

4. Ganizirani momwe nthaka ilili:Onani momwe nthaka yanu ilili, monga momwe dothi limapangidwira, kapangidwe kake, ndi kuya kwake. Masensa ena amatha kuchita bwino ndi mitundu ina ya dothi kapena kuya. Onetsetsani kuti sensor yomwe mumasankha ndiyoyenera nthaka yanu.

5. Kuyesa ndi kulondola:Ganizirani momwe mungasinthire komanso kulondola kwa sensa. Calibration imatsimikizira kuti zowerengera za sensor ndizolondola komanso zodalirika. Yang'anani ngati sensa imafuna kusinthasintha nthawi zonse komanso ngati wopanga amapereka malangizo omveka bwino a ndondomeko yowonetsera.

6. Kuphatikiza ndi kugwirizana:Dziwani momwe sensor ingaphatikizire ndi machitidwe kapena zida zomwe zilipo. Ganizirani za mtundu wa analogi (analogi, digito, opanda zingwe) ndikuwona ngati ikugwirizana ndi kudula mitengo kapena ulimi wothirira. Ngati mukufuna kuwunika kwakutali, onetsetsani kuti sensor imathandizira njira zolumikizirana zofunika.

7. Mtengo ndi bajeti:Ganizirani zovuta za bajeti yanu ndikuyerekeza mtengo wa masensa osiyanasiyana. Kumbukirani kuti masensa apamwamba amatha kupereka kulondola komanso kulimba, zomwe zimapangitsa kuti pakhale ndalama zochepetsera nthawi yayitali.

8. Ndemanga ndi malingaliro:Werengani ndemanga za makasitomala, funsani malingaliro kwa alimi anzanu kapena akatswiri a zaulimi, ndipo sonkhanitsani ndemanga za momwe zimagwirira ntchito ndi kudalirika kwa zodziwira chinyezi munthaka zomwe mukuziganizira. Zochitika zenizeni padziko lapansi zimatha kupereka chidziwitso chofunikira.

9. Funsani akatswiri:Ngati kuli kofunikira, funsani akatswiri a zaulimi, a ulangizi, kapena mabungwe a zaulimi kuti apeze malangizo ndi malingaliro okhudzana ndi ulimi ndi dera lanu.

Potsatira izi, mutha kupanga chiganizo mwanzeru ndikusankha kachipangizo ka chinyezi m'nthaka kamene kamakwaniritsa ntchito yanu yaulimi kapena zofunikira paulimi, kukuthandizani kukhathamiritsa kagwiritsidwe ntchito ka madzi, kukonza zokolola, ndikulimbikitsa ulimi wokhazikika.

Ndi bwino kusankha nthaka yofewa kuti muyikemo. Ngati mukuwona kuti m'nthaka yoyesedwa muli chotupa cholimba kapena chachilendo, chonde sankhaninso malo omwe nthakayo yayesedwa.

4.Pamene sensa ya nthaka yasungidwa, pukutani singano zitatu zosapanga dzimbiri zosapanga dzimbiri ndi matawulo a pepala owuma, kuwaphimba ndi thovu, ndikuwasunga pamalo ouma a 0-60 ℃.

Zathunthaka chinyezi kachipangizonjira yoyika ndiyosavuta, palibe chifukwa cholembera akatswiri, sungani ndalama zanu zogwirira ntchito. The mankhwala ndi oyenera madzi opulumutsa ulimi ulimi wothirira, wowonjezera kutentha, maluwa ndi masamba, udzu ndi msipu, muyeso nthaka liwiro, kulima zomera, kuyesera sayansi, mafuta mobisa, payipi gasi ndi kuwunika dzimbiri mapaipi ndi madera ena. Kawirikawiri, mtengo wa kukhazikitsa kwa sensa zimadalira dera la malo oyezera ndi ntchito yomwe yapindula. Kodi muyenera kudziwa kuchuluka kwa masensa a chinyezi munthaka omwe muyenera kuyika pamalo oyezera? Ndi masensa angati omwe amafanana ndi osonkhanitsa deta? Kodi chingwe pakati pa masensa ndi nthawi yayitali bwanji? Kodi mukufuna zowongolera zina kuti mugwiritse ntchito zowongolera zokha? Mukamvetsetsa zovutazi, mutha kusankha malinga ndi zosowa zanu kapena kulola gulu laukadaulo la HENGKO kuti likusankhireni zinthu ndi ntchito zoyenera.

FAQs

1. Kodi cholinga cha sensa ya chinyezi m'nthaka ndi chiyani?

Yankho: Cholinga cha sensa ya chinyezi m'nthaka ndi kuyeza kuchuluka kwa chinyezi m'nthaka. Limapereka chidziwitso cha kupezeka kwa madzi m'nthaka, yomwe ndi yofunika kwambiri pakusamalira bwino ulimi wothirira, kuteteza kuthirira kapena kuthirira pansi, komanso kulimbikitsa kukula kwabwino kwa mbewu.

2. Kodi kachipangizo ka chinyezi ka nthaka kamagwira ntchito bwanji?

Yankho: Sensa ya chinyezi m'nthaka imagwira ntchito poyeza mphamvu yamagetsi kapena kukana kwa nthaka. Nthawi zambiri, amakhala ndi ma probe achitsulo awiri omwe amalowetsedwa m'nthaka. Kukaniza pakati pa probes kumasintha ndi mitundu yosiyanasiyana ya chinyezi. Poyesa kukana uku, sensa imatsimikizira chinyezi m'nthaka.

3. Kodi ndiyenera kuyang'ana chiyani mu sensa ya chinyezi cha nthaka?

Yankho: Posankha sensa ya chinyezi cha nthaka, ganizirani zinthu monga kulondola, kuchuluka kwa kuyeza, kukhazikika, kukhazikika kwa kukhazikitsa, kugwirizanitsa ndi machitidwe othirira kapena odula deta, ndi mtundu wa zotulutsa (analog, digital, wireless). Kuonjezera apo, zofunikira za calibration, teknoloji ya sensor, ndi kugwirizanitsa ndi mitundu yosiyanasiyana ya nthaka ziyenera kuganiziridwa.

4. Kodi ndimayika bwanji sensa ya chinyezi m'nthaka?

Yankho: Njira zoyika zingasiyane kutengera mtundu wa sensor. Nthawi zambiri, zozindikira za chinyezi m'nthaka zimayikidwa pansi pa kuya komwe kumafunikira, kuwonetsetsa kukhudzana kwabwino pakati pa ma probe ndi nthaka. Ndikofunikira kutsatira malangizo a wopanga pakuzama ndikuyika kuti muwerenge zolondola.

5. Kodi zoyezera chinyezi m'nthaka zimagwiritsidwa ntchito bwanji?

Yankho: Zowunikira chinyezi za dothi zimakhala ndi ntchito zosiyanasiyana, kuphatikiza ulimi, ulimi wamaluwa, kukongoletsa malo, kuyang'anira chilengedwe, ndi kafukufuku. Amagwiritsidwa ntchito posamalira ulimi wothirira, ulimi wolondola, kuyang'anira chilala, kuwongolera kagwiritsidwe ntchito ka madzi, ndikuwonetsetsa kuti mbewu zikule bwino. Amagwiritsidwanso ntchito m'maphunziro a sayansi ya nthaka, malo opangira nyengo, ndi njira zanzeru zothirira.

6. Kodi ndiyenera kuyeza kangati kachipangizo ka chinyezi m'nthaka yanga?

Yankho: Ma frequency a calibration amadalira mtundu wa sensa, malingaliro opanga, ndi kuchuluka kwa kulondola kofunikira pakugwiritsa ntchito kwanu. Masensa ena angafunike kuwongolera nyengo iliyonse yakukula, pomwe ena angafunike kuwunika pafupipafupi kapena pafupipafupi. Kuwongolera pafupipafupi ndikofunikira kuti mawerengedwe awerengedwe molondola komanso kuti azigwira bwino ntchito.

7. Kodi zozindikira za chinyezi m'nthaka zitha kugwiritsidwa ntchito mumitundu yosiyanasiyana ya dothi?

Yankho: Inde, zodziwira chinyezi m'nthaka zingagwiritsidwe ntchito m'nthaka zosiyanasiyana, monga mchenga, loamy, kapena dothi. Komabe, masensa osiyanasiyana amatha kukhala ndi magwiridwe antchito osiyanasiyana mumitundu yosiyanasiyana yadothi. Ndikofunikira kusankha kachipangizo koyenera kutengera dothi lomwe lili mdera lanu.

8. Kodi masensa a chinyezi m'nthaka angagwiritsidwe ntchito pamithirira yodzichitira yokha?

Yankho: Inde, masensa ambiri a chinyezi cha nthaka amatha kuphatikizidwa ndi makina othirira okha. Mwa kulumikiza sensa kwa wowongolera ulimi wothirira, amapereka deta yeniyeni ya chinyezi cha nthaka. Deta iyi ingagwiritsidwe ntchito kuyambitsa mizunguliro ya ulimi wothirira potengera malo omwe adakhazikitsidwa kale, kuonetsetsa kuti madzi akusamalidwa bwino komanso kuchepetsa kulowererapo pamanja.

9. Kodi zozindikira za chinyezi m'nthaka zitha kugwiritsidwa ntchito m'machitidwe olima opanda dothi?

Yankho: Inde, zowunikira za chinyezi za nthaka zitha kugwiritsidwa ntchito m'machitidwe olima opanda dothi, monga ma hydroponics kapena aeroponics. M'makina otere, masensa amayikidwa muzofalitsa zomwe zikukula kapena gawo lapansi lomwe limagwiritsidwa ntchito kuthandizira mizu ya zomera. Amapereka chidziwitso chofunikira cha chinyontho chothandizira kusunga zakudya zoyenera komanso ma hydration muzone.

10. Kodi pali zofunikira zosamalira zowunikira chinyezi m'nthaka?

Yankho: Zofunikira pakukonza zitha kusiyanasiyana pakati pamitundu yama sensor. Nthawi zambiri, tikulimbikitsidwa kuyeretsa nthawi ndi nthawi ma sensor probes kuti muchotse zotsalira zadothi zomwe zingakhudze kuwerenga. Kuonjezera apo, kutsatira malangizo opanga kusungirako, kusamalira, ndi kukonza kansalu ndikofunikira kuti zitsimikizire kuti ntchito yayitali komanso yolondola.

Kuti mudziwe zambiri kapena kuti mudziwe zambiri za masensa a chinyezi cha HENGKO, titumizireni imelo paka@hengko.com.

Tabwera kukuthandizani kupeza njira yabwino yothetsera ntchito zanu zaulimi. Osazengereza kutifikira!