Ingabe ufisa ulethisi omusha phakathi nezinyanga ezibandayo zasebusika? Ungakhathazeki! Ukukhulisa ulethisi ku-greenhouse kungaba yinto enomvuzo futhi emnandi. Landela lo mhlahlandlela olula ukuze ube uchwepheshe otshala ulethisi ebusika.
Ukulungisa Umhlabathi Wokutshalwa Kwendlu Yokushisa Ebusika
Umhlabathi uyisisekelo sokukhula kukalethisi onempilo. Khetha umhlabathi ovundile oyisihlabathi ovundile noma ovundile. Lolu hlobo lwenhlabathi lunomoya omuhle wokungena, okuvumela izimpande ze-lettuce ukuba ziphefumule ngokukhululekile futhi zivimbele ukugeleza kwamanzi. Faka u-3,000-5,000 wamakhilogremu womanyolo obole kahle wemvelo kanye namakhilogremu angama-30-40 womanyolo oyinhlanganisela ihektare ngalinye. Xuba umanyolo kahle enhlabathini ngokulima ukujula okungamasentimitha angama-30. Lokhu kuqinisekisa ukuthi ulethisi uthola zonke izakhamzimba eziwudingayo zisuka nje. Ukugcina inhlabathi yakho inempilo futhi ingenazinambuzane, yiphathe ngengxube engu-50% ye-thiophanate-methyl kanye ne-mancozeb. Lesi sinyathelo sizodala indawo ehlanzekile nenempilo ukuze ulethisi wakho ukhule.
Ukwengeza I-Insulation eyengeziwe ku-Greenhouse phakathi nobusika
Ukugcina i-greenhouse yakho ifudumele kubalulekile ebusika. Ukwengeza izingqimba ezengeziwe zokufakwa ngaphakathi kungenza umehluko omkhulu. Ukwandisa ukuqina kwekhava yakho ye-greenhouse kuya kumasentimitha angu-5 kungakhuphula izinga lokushisa ngaphakathi ngo-3-5 degrees Celsius. Kufana nokunikeza i-greenhouse yakho ingubo ewugqinsi, ethokomele ukuze ungagodoli. Ungakwazi futhi ukufaka amakhethini okufaka ama-double layered ezinhlangothini nangaphezulu kwe-greenhouse. Lokhu kungakhuphula izinga lokushisa ngomunye u-5 degrees Celsius. Ifilimu elengayo elengayo odongeni olungemuva kungenye indlela ehlakaniphile. Ibuyisela ukukhanya ku-greenhouse, ikhulise kokubili ukukhanya nokufudumala. Kulezo zinsuku ezibandayo kakhulu, cabanga ukusebenzisa amabhulokhi okushisa, izifudumezi ezibamba ukushisa, noma iziko lomoya elifudumele elisebenza ngophethiloli. Lawa madivaysi angalungisa ngokuzenzakalelayo izinga lokushisa, aqinisekise ukuthi indlu yakho ebamba ukushisa ihlala ifudumele futhi ilungele ukukhula kukalethisi.
I-pH ne-EC Level Monitoring ye-Hydroponic Lettuce Ebusika
Uma utshala ulethisi nge-hydroponically, ukugcina iso kumazinga e-pH ne-EC esixazululo sakho sezakhi kubalulekile. Ulethisi uncamela izinga le-pH eliphakathi kuka-5.8 no-6.6, ngebanga elikahle lika-6.0 kuya ku-6.3. Uma i-pH iphezulu kakhulu, engeza enye i-ferrous sulfate noma i-monopotassium phosphate. Uma iphansi kakhulu, ingcosana yamanzi e-lime izokwenza ubuqili. Hlola i-pH masonto onke ngemichilo yokuhlola noma imitha ye-pH futhi wenze izinguquko njengoba kudingeka. Izinga le-EC, elikala ukugcwala kwezakhi, kufanele libe phakathi kuka-0.683 no-1.940. Ku-ulethisi osemusha, hlose izinga le-EC lika-0.8 kuya ku-1.0. Njengoba izitshalo zikhula, ungakwazi ukwandisa kube ngu-1.5 kuya ku-1.8. Lungisa i-EC ngokwengeza isixazululo sezakhi ezigxilile noma ngokuhlambulula isisombululo esikhona. Lokhu kuqinisekisa ukuthi ulethisi wakho uthola inani elifanele lemisoco kuzo zonke izigaba zokukhula.
Ukuhlonza Nokwelapha Amagciwane Ku-Lettuce Yokushisa Ebusika
Umswakama ophezulu ezindlini zokugcina izithombo ungenza ulethisi ube lula kakhulu ezifweni. Qaphela izinkinga ezivamile ezifana ne-downy mildew, ebangela isikhunta esimhlophe ngaphansi kwamaqabunga kanye nokuphuzi; ukubola okuthambile, okuholela emanzini afakwe emanzini, iziqu ezinephunga elibi; kanye nesikhunta esimpunga, esidala isikhunta esimpunga emaqabunga nasezimbalini. Ukuze uvimbele lezi zinkinga, gcina izinga lokushisa lokushisa eliphakathi kuka-15-20 degrees Celsius kanye nomswakama ku-60% -70%. Uma ubona noma yiziphi izimpawu zesifo, phatha izitshalo ngekhambi elihlanjululwe izikhathi ezingama-600-800 lika-75% chlorothalonil noma isixazululo esihlanjululwe izikhathi ezingama-500 sika-58% metalaxyl-manganese zinc. Fafaza izitshalo njalo ezinsukwini ezingu-7-10 ukuze usebenzise izicelo ezingu-2-3 ukuze ugcine amagciwane e-pathogen futhi ulethisi wakho unempilo.
Ukukhulisa ulethisi ku-greenhouse ebusika kuyindlela enhle yokujabulela umkhiqizo omusha nokuzijabulisa kwengadi. Landela lezi zinyathelo, futhi uzobe uvuna ulethisi opholile, omusha ngisho nasezinyanga ezibanda kakhulu.
Isikhathi sokuthumela: May-16-2025
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