Abalimi abafuna ukuthi kuhlolwe amanzi abo okuhlinzekwa kanye nokukhipha amanzi kufanele balande isampula bese beyithumela elabhorethri. Bese kufanele balinde izinsuku ezimbalwa ukuthola umphumela. Ngenxa yalezi zizathu, lokhu kusebenza kwenziwa kuphela njalo ezinsukwini ezingu-7 - 14. Ngokulinganisa amanzi nge-ion-specific meter in-situ, umphumela waziwa cishe ngehora, futhi umlimi angakwazi ukwenza izinguquko ngokushesha uma kunesidingo. Ukwengeza, ukwakhiwa kwedatha ku-situ kushiya isikhala sokuzenzakalela kwesikhathi esizayo kokulungiswa. I-Business Unit Greenhouse Horticulture and Flower Bulbs yase-Wageningen University & Research iphenya ukusetshenziswa okungokoqobo kwe-Celine, umshini wokulinganisa othize we-ion, kanye nenzuzo yalokho okubizwa ngokuthi 'ukulima okukhethekile kwe-ion.'
Eminyakeni embalwa edlule, i-The Sensor Factory yethula i-Celine, ithuluzi lokwenza izilinganiso eziqondene ne-ion esebenzisa inqubo ye-capillary electrophoresis. I-WUR idale i-consortium ukuze iphenye ukuthi i-Celine ingasetshenziswa kanjani futhi ithuthukiswe kangcono. I-WUR ihlose ukuqoqa imininingwane eyanele ukuze iqhathanise ukutshalwa kwe-ion-specific (ISC) (ukulungiswa kwansuku zonke nge-ion) ngokumelene nomkhuba ovamile (CC) (ukulungiswa kwansuku zonke ku-EC) kanye nokufakazela ukusebenza kahle okuphezulu kwangaphambili. I-ISC kukholakala ukuthi inciphisa ukuguquguquka kwe-ion endaweni eyimpande uma iqhathaniswa ne-CC, engagcina inyuse isivuno ngo-5%.
Ukuhlolwa kwelabhulali
Ukuhlolwa kwaselabhorethri kwenziwa okokuqala ukuze kufakazele umphumela wokuguquguquka kwe-ion emvuzweni. I-WUR ibe isisebenzisa isilingo sokuqhathanisa phakathi kwe-ISC ne-CC, okuthe, nokho, ayizange ibonise inzuzo enkulu ye-ISC ngenxa yokwehluleka kwezobuchwepheshe ekusebenziseni ukuzivumelanisa kwansuku zonke ku-ISC. Eqinisweni, ukusebenzisa ukulungiswa kwansuku zonke, kuyadingeka ukubamba iyunithi yomjovo womanyolo. Ngenxa yalesi sizathu, uphenyo lwalandelwa ngo-2021 enkampanini ekhulisa imifino iRoyal Pride, kanti i-Celine okwamanje ihlolwa umlimi wamatamatisi u-Kwekerij Lijntje, lapho bobabili abalimi bephethe imijovo kamanyolo.
Ucwaningo lubheka ikakhulukazi ama-macronutrients NH4, K, Ca, Mg, Na, NO3, Cl, SO4, PO4, kanye ne-HCO3. Kokubili amanzi okukhipha kanye namanzi okunisela ayahlolwa. Lokho kudlula ngepayipi kuCeline. Ngakho-ke ukulinganisa kuyazenzakalela; Ngakho-ke, umlimi akadingi ukuthatha amasampula. Phakathi nocwaningo, idatha mayelana nama-ion ilayishwa ohlelweni lwe-WUR lokuncoma izakhi (NRP), i-BAB (Bemesting Advies Basis), echaza kabanzi idatha evela kuCeline futhi iphakamise ukulungiswa kwansuku zonke kumlimi.
I-Autonomous fertigation
Ukusetshenziswa kwe-ion-specific meter in-situ kuhlanganiswe ne-NRP kungaba yintshisekelo ikakhulukazi kulezo zindawo lapho ulwazi oluncane lutholakala khona mayelana nokuvundisa kanye nokuhlaziywa kwelabhorethri kuhamba kancane kakhulu noma kubiza kakhulu. Esikhundleni salokho, ezindlini zokugcina izithombo zesimanje, le nhlanganisela iyisinyathelo sokuqala esibheke ezinhlelweni zokuvundisa ezizimele.
Ukuze uthole ukwaziswa okwengeziwe:
I-Wageningen University & Ucwaningo
www.wur.nl
Umthombo: https://www.hortibiz.com/