Ingabe Izikole Zingasebenzisa Izakhi Zomsoco Ezomile Ze-Hydroponics? Indlela Yokuxuba Impushana Ngaphandle Kokuvimba Amapayipi
Izikole zinganciphisa kakhulu izindleko zezakhi zomsoco ze-hydroponics ngokushintshela ezisawotini ezomile, inqobo nje uma zihlukanisa i-calcium egxilile kuma-phosphate nama-sulphate ukuze kugwenywe izinhlayiya ezivimba amapayipi.
Yebo, izikole zingasebenzisa ngokuphephile nangempumelelo izimpushana zezakhi zomsoco ezomile esikhundleni sokudla okumanzi osekuvele kuxutshiwe kwe-hydroponics. Ngokwenzekayo, izisawoti zamaminerali ezomile ziyindinganiso kwezolimo zezohwebo ngoba ukudla okumanzi ngokuyisisekelo kuyizisawoti ezomile ezincibilikiswe emanzini zidayiswa ngentengo ephezulu kakhulu yokudayisa. Nokho, ukusebenzisa izakhi zomsoco ezomile kudinga umthetho owodwa wamakhemikhali okungaxoxiswana ngawo: akufanele neze uhlanganise i-calcium egxilile nama-phosphate noma ama-sulphate agxilile esitsheni esisodwa.
Izibalo Zezindleko: Izisawoti Ezimanzi Uma Ziqhathaniswa Nezomile
Izakhi zomsoco ezimanzi ze-hydroponics esezivele zixutshiwe zilungele abantu abazitshalela njengento yokuzilibazisa benekhithi eyodwa yamakhambi yasesitebuleni, kodwa azinangqondo ngokwezimali endaweni yesikole. Izakhi zomsoco ezimanzi zakhiwe ngamanzi angama-80% kuya kuma-90%. Lapho isikole si-oda amabhodlela okudla okumanzi, ingxenye enkulu yesabelomali iya ekuthuthweni kwamanzi ompompi asebhodleleni, ukupakishwa kwepulasitiki, kanye nenzuzo eyengeziwe yomkhiqizo.
Izisawoti ezomile ze-hydroponics—ngokuvamile ezithengwa njengohlelo olunezingxenye eziningi (njenge-Calcium Nitrate, Potassium Nitrate, Monopotassium Phosphate, kanye ne-Magnesium Sulphate enama-chelated trace elements)—zihlala isikhathi eside kakhulu uma zigcinwe zomile futhi zivaliwe. Isikhwama esingu-5 kg sesisekelo sezimpushana zomsoco ngokuvamile sikhiqiza izinkulungwane zamalitha esixazululo somsoco esisebenzayo ngenxenye encane yezindleko zelitha ngalinye lezinto ezigxilile ezimanzi. Esikoleni esisebenzisa imisele ye-NFT ekilasini, amabhakede e-Dutch, noma imibhoshongo emile ezenzekelayo, ukonga kwaminyaka yonke kukhokhela ngokushesha izindleko zepeni ledijithali le-EC/pH kanye nesikali sedijithali sasekhishini.
Isayensi Yezamakhemikhali Yokuvinjwa Kwamapayipi: Kungani Kwakheka Izinhlayiya
Inkinga evame kakhulu lapho othisha noma abafundi beshintshela ezisawotini ezomile ukuvaleka kwezikhonkwane zokaconsi, amapayipi amancane anamathelanayo, nokuminyana kwama-impeller amaphampu acwiliswayo. Lokhu kwenzeka ngenxa yokusabela okuyisisekelo kokuncibilika:
- I-Calcium Nitrate ihlinzeka nge-calcium ebalulekile ($Ca^{2+}$) kanye ne-nitrate nitrogen ($NO_3^-$).
- Izisawoti ze-Phosphate ne-Sulphate (njenge-Monopotassium Phosphate ne-Magnesium Sulphate) zihlinzeka nge-phosphorus ($H_2PO_4^-$) kanye nesibabule ($SO_4^{2-}$).
Lapho ama-ion e-calcium ehlangana nama-ion e-sulphate noma e-phosphate ngokugxila okuphezulu, asabela cishe ngokushesha ukuze akhe izinhlanganisela ezingancibiliki: i-Calcium Sulphate (i-gypsum) kanye ne-Calcium Phosphate. Lezi zinhlanganisela ziyaphuma oketshezini njengezinhlayiya ezimhlophe ezisawushoki ezingaphinde zincibilike emanzini, kungakhathaliseki ukuthi ithangi linyakaziswa ngamandla kangakanani. Uma sesidonswe empompini yokunisela, lesi sihlabathi sihlala ezindaweni ezincanyana zamapayipi akho: amapayipi okuphakela angu-4 mm, izimbobo zokufafaza, kanye nama-dripper anqanda umfutho.
Isixazululo: Indlela Ye-Stock Concentrate Enezingxenye Ezimbili
Kwezolimo zezohwebo nasezindaweni zokuhlola zesayensi ezikoleni, izakhi zomsoco ezomile zisingathwa kusetshenziswa uhlelo lwe-stock lwezingxenye ezimbili “u-A no-B”. Esikhundleni sokuthela izimpushana ezomile ngqo ethangini lamanzi elikhulu ngokungahleliwe, uxuba izixazululo ezimbili ezihlukene ezigxilile zoketshezi lwe-stock ezitsheni noma emabhakedeni ahlukene:
| Ithangi Le-Stock A (Ithangi Le-Calcium) | Ithangi Le-Stock B (Ithangi Le-Phosphate Ne-Sulphate) |
|---|---|
| Calcium Nitrate | Potassium Nitrate |
| Iron Chelate (EDTA, DTPA, noma EDDHA) | Monopotassium Phosphate |
| (Ongakukhetha) Ingxenye ye-Potassium Nitrate | Magnesium Sulphate (Epsom Salt) |
| Izakhi Ezingama-Trace Elements (i-Zinc, Boron, Manganese, Copper, Molybdite) |
Ngenxa yokuthi i-Calcium eseThangini A kanye nama-Sulphate/Phosphates aseThangini B kugcinwa kuhlukanisiwe ngenkathi kugxilile, akukho zinhlayiya ezenzekayo. I-chelated iron ifakwa eThangini A ngoba ukugxila okuphezulu kwe-phosphate eThangini B nakho kungabangela ukuthi insimbi iphume esixazululweni.
Inqubo Yesinyathelo Ngesinyathelo Yokuxuba Esinqolobaneni Yamanzi
Lapho sekuyisikhathi sokufaka izakhi zomsoco esinqolobaneni sakho esikhulu se-hydroponics, landela lolu hlelo ngokunembile:
- Gcwalisa isinqobolana ngamanzi kuqala. Ungalokothi ufake izakhi zomsoco ezigxilile ethangini elingenalutho noma elicishe lingabi nalutho. Gcwalisa isinqobolana okungenani ngama-80% womthamo ohlosiwe ngamanzi ahlanzekile ompompi.
- Faka okweThangi A (noma i-Part A eyomile) bese uncibilikisa kahle. Faka into yakho egxilile ye-Part A emanzini esinqolobana. Nyakazisa ngamandla ize ihlakazeke ngokugcwele kuwo wonke amanzi. Ngenxa yokuthi ama-ion e-calcium manje asencibilikisiwe kuwo wonke amalitha ayinqwaba noma amakhulu, ahlukene kude kakhulu ukuthi angahlangana akhe izinhlayiya masinyane.
- Faka okweThangi B (noma i-Part B eyomile) bese uyanyakazisa. Faka into yakho egxilile ye-Part B ethangini eselihlanjululwe kakade. Ama-ion e-phosphate ne-sulphate ahlakazeka ngokuphephile ngaphandle kokuvalela i-calcium.
- Gcwalisa kuze kugcwale, jikelezisa, bese ukala. Faka umthamo wamanzi osele, sebenzisa iphampu ecwiliswayo imizuzu engu-5 kuya kwengu-10 ukuze kuhlanganiswe kahle ingxube, bese ukala ukuhamba kukagesi (EC) kanye ne-pH. Lungisa i-pH (uhlose i-5.8–6.2 ezitshalweni eziningi) kuphela ngemuva kokuba zonke izakhi zomsoco sezincibilike ngokuphelele.
Izivikelo Zempahla Yokusebenza Ye-Hydroponics Ezikoleni
Ngisho nangokuxuba ngokucophelela, izinhlelo zezikole zibhekana nezingozi ezingokoqobo: izinsalela ezisawushoki ezivela emanzini kamasipala anezimbiwa eziningi (hard water), imfucuza yezimpande eziphilayo, noma ukuhwamuka okunganakiwe ngezimpelasonto ezishisayo nangamaholide ezikole. Ukuze uvikele uhlelo lwakho, sebenzisa le mithetho emithathu elula yokusebenza:
- Faka isisefo se-disc noma se-screen esingu-120-mesh epayipini lokuletha ngokushesha ngemva kwephampu ecwiliswayo. Uma kwenzeka kwakheka izinhlayiya ngengozi noma i-biofilm, ibambeka endlini yesisefo esikhundleni sokuvala izikhonkwane zokaconsi ezingamashumi amabili ngaphakathi komsele.
- Bhekelela ukuma okubangelwa ukucinywa kukagesi (load-shedding). Eningizimu Afrika, ukucinywa kukagesi okungahleliwe noma izigaba zokucinywa kukagesi (load-shedding) kumisa amaphampu acwiliswayo. Uma isixazululo esigxile kakhulu noma esingaxubekile kahle sihlala simile emapayipini amancane angu-4 mm ngaphansi kwezimo ezishisayo ze-greenhouse, amanzi ayahwamuka bese izisawoti ziba ngamakristalu ngaphakathi kwepayipi. Qinisekisa ukuthi ipayipi lakho eliyinhloko lokusabalalisa lisebenzisa ipayipi elingu-13 mm kuya ku-15 mm okungenani elinezivalo zokugcina ezikhishwa kalula ukuze kuhlanzwe ngezikhathi ezithile.
- Ungalokothi uxube izimpushana ngqo ethangini ngaphandle kwebhakede lokuncibilikisa. Uma ungagcini izixazululo ezigxilile zoketshezi lwe-stock futhi ukhetha ukufaka ngqo kusuka empusheni eyomile, ngaso sonke isikhathi ncibilikisa usawoti ngamunye okaliwe ngokuphelele ebhakedeni elihlukile elingamalitha angu-5 lamanzi afudumele ngaphambi kokuwuthela esinqolobaneni.
Uma wakha uhlelo lwesikole oluzenzekelayo olunemishini efaka izakhi zomsoco (dosing pumps) nokugada kwe-IoT, hlola izakhiwo zenzwa ezingamamojula nezokunisela ezinsizeni zethu zekharikhulamu ye-hydroponic, eziklanyelwe lezi zinqubo zezolimo ezijwayelekile.
