Ngemva kokungena ehlobo, njengoba ukukhanya kuba namandla futhi izinga lokushisa likhuphuka, izinga lokushisa eshede liphakeme kakhulu futhi ukukhanya kunamandla kakhulu, okuye kwaba isici esiyinhloko esithinta ukukhula kwezilimo.Ukunciphisa izinga lokushisa nokukhanya okukhanyayo eshedini, amanetha e-shading ayisinqumo sokuqala.Nokho, abalimi abaningi basanda kubika ukuthi nakuba izinga lokushisa liye lehla ngemva kokusebenzisainetha lomthunzi, ukhukhamba unezinkinga zokukhula okubuthakathaka kanye nesivuno esincane.Ngemva kokuqonda okuningiliziwe, umhleli ukholelwa ukuthi lokhu kubangelwa izinga eliphezulu le-shading enetha le-sunshade elisetshenzisiwe.Kunezizathu ezimbili eziyinhloko zezinga eliphezulu le-shading: enye inkinga yendlela yokusebenzisa;enye inkinga ye-sunshade net ngokwayo.Ngokusebenzisa amanetha e-sunshade, izici ezilandelayo kufanele zinakwe:
Okokuqala, kufanele sikhethe okulungilesunshade net.Imibala yamanethi anomthunzi emakethe ikakhulukazi emnyama kanye nesiliva-grey.Okumnyama kunezinga eliphezulu lokufiphaza kanye nomthelela omuhle wokupholisa, kodwa kunomthelela omkhulu ku-photosynthesis.Ilungele ukusetshenziswa ezitshalweni ezithanda umthunzi.Uma isetshenziswa kwezinye izitshalo ezithanda ukukhanya.Isikhathi sokuvala kufanele sincishiswe.Nakuba inetha elinomthunzi ompunga esiliva lingasebenzi kahle ekupholiseni njengaleli elimnyama, linomthelela omncane ku-photosynthesis yezitshalo futhi lingasetshenziswa ezitshalweni ezithanda ukukhanya.
Okwesibili, sebenzisa inetha le-sunshade ngendlela efanele.Kunezinhlobo ezimbili zezindlela zokumboza inetha le-shading: ukumbozwa okugcwele kanye nokufakwa kohlobo lwe-pavilion.Ekusetshenzisweni okungokoqobo, ukumbozwa kohlobo lwe-pavilion kusetshenziswa kakhulu ngenxa yomphumela wayo ongcono wokupholisa ngenxa yokujikeleza komoya okubushelelezi.Indlela eqondile yile: sebenzisa uhlaka lwamathambo eshede le-arch ukumboza inetha lomthunzi welanga phezulu, bese ushiya ibhande lokungenisa umoya elingama-60-80 cm kulo.Uma imbozwe ngefilimu, inetha le-sunshade alikwazi ukumbozwa ngokuqondile efilimu, futhi igebe elingaphezu kuka-20 cm kufanele lishiywe ukuze kusetshenziswe umoya ukupholisa.Nakuba ukumboza inetha le-sunshade kunganciphisa izinga lokushisa, futhi kunciphisa amandla okukhanya, okunomthelela omubi ku-photosynthesis yezitshalo, ngakho-ke isikhathi sokumboza sibaluleke kakhulu, futhi kufanele sigwenywe usuku lonke.Lapho izinga lokushisa lehla laya ku-30 ℃, inethi yomthunzi ingasuswa, futhi ayimbozwa ngezinsuku eziguqubele ukuze kuncishiswe imiphumela emibi ezitshalweni.
Ucwaningo luphinde lwathola ukuthi inkinga yenetha le-shading ngokwayo nayo iyisici esingenakunakwa esibangela ukuthi izinga le-shading libe phezulu kakhulu.Njengamanje, kunezinhlobo ezimbili eziyinhloko zamanetha e-sunshade emakethe: eyodwa ithengiswa ngesisindo, kanti enye ithengiswa ngendawo.Amanethi athengiswa ngesisindo ngokuvamile amanethi asetshenziswa kabusha, angamanethi ekhwalithi ephansi futhi anempilo yesevisi yezinyanga ezi-2 ukuya onyakeni ongu-1.Leli netha libonakala ngocingo oluwugqinsi, inethi eqinile, ukuhwalala, anezikhala eziminyene, isisindo esisindayo, kanye nezinga lokufiphaza eliphakeme ngokuvamile.Ngaphezulu kuka-70%, awekho amaphakheji acacile.Amanethi athengiswa ngendawo ngokuvamile awamanethi ezinto ezintsha, anempilo yesevisi yeminyaka emi-3 kuya kwemi-5.Leli netha libonakala ngesisindo esilula, ukuguquguquka okumaphakathi, indawo enetha ebushelelezi futhi ecwebezelayo, kanye nohlu olubanzi lokulungiswa kwezinga le-shading, okungenziwa kusuka ku-30% kuya ku-95%.fika.
Lapho uthenga inetha le-shading, kufanele siqale sinqume ukuthi izinga le-shading liphakeme kangakanani eshedini lethu.Ngaphansi kokukhanya kwelanga ehlobo, ukukhanya kungafinyelela ku-60,000-100,000 lux.Emifino, indawo yokugcwala ukukhanya kwemifino eminingi i-30,000-60,000 lux.Isibonelo, indawo ekhanyayo kapelepele iyi-30,000 lux futhi isitshalo seqanda siyi-40,000 lux.I-Lux, ikhukhamba yi-55,000 lux.Ukukhanya okudlulele kuzoba nomthelela omkhulu ku-photosynthesis yemifino, okuholela ekuvinjweni kwe-carbon dioxide, ukuphefumula ngokweqile, njll., kanye nesenzakalo se-photosynthetic "ikhefu lasemini" esenzeka ngaphansi kwezimo zemvelo senziwa ngale ndlela.Ngakho-ke, ukusetshenziswa kwesembozo somthunzi ngesilinganiso esifanele se-shading akukwazi nje ukunciphisa izinga lokushisa endaweni ngaphambi nangemva kwemini, kodwa futhi kuthuthukise ukusebenza kahle kwe-photosynthetic yemifino, ukubulala izinyoni ezimbili ngetshe elilodwa.
Ngokucabangela izidingo zokukhanyisa ezihlukene zezitshalo kanye nesidingo sokulawula izinga lokushisa leshede, kufanele sikhethe inetha le-shading elinezinga elifanele le-shading.Kulabo abanamaphuzu okugcwala okukhanyayo okuphansi okufana nopelepele, ungakhetha inetha le-shading enezinga eliphezulu le-shading.Isibonelo, izinga le-shading liyi-50% -70% ukuze kuqinisekiswe ukuthi ukukhanya kwe-shede kumayelana ne-30,000 lux.Kumakhukhamba anephuzu eliphakeme lokugcwala ukukhanya Ezinhlotsheni zemifino, kufanele ukhethe inetha le-shading enezinga eliphansi le-shading, njengezinga le-shading lika-35-50%, ukuqinisekisa ukuthi ukukhanya okukhanyayo ku-50,000 lux.
Umthombo we-athikili: I-Tianbao Agricultural Technology Service Platform
Isikhathi sokuthumela: May-07-2022