iindaba

Ehlotyeni, njengoko ukukhanya kuya kuba namandla kwaye ubushushu buphakama, iqondo lokushisa kwi-shed liphezulu kakhulu kwaye ukukhanya kunamandla kakhulu, okuba yinto ephambili echaphazela ukukhula kwemifuno.Kwimveliso, abalimi bemifuno bahlala besebenzisa indlela yokugubungelaiminatha enomthunziukunciphisa ubushushu kwishedi.
Nangona kunjalo, kukho nabalimi abaninzi bemifuno ababika ukuba nangona ukushisa kuyehla emva kokusebenzisa umnatha womthunzi, iikomkomere zineengxaki zokukhula okubuthathaka kunye nesivuno esiphantsi.Ukusuka kulo mbono, ukusetyenziswa kweemanetha ze-shading akulula njengoko kucatshangelwa, kwaye ukhetho olungenangqiqo lunokukhokelela kumazinga amaninzi omthunzi kunye nokuchaphazela ukukhula kwezityalo zemifuno.
Indlela yokukhetha umnatha we-sunshade ngokwesayensi nangengqiqo?
1. Khetha umbala wenethi yomthunzi ngokohlobo lwemifuno
Umbala womnatha womthunzi wongezwa ngexesha lenkqubo yokuvelisa izinto eziluhlaza.Iminatha yomthunzi okwangoku kwimarike ikakhulu imnyama kunye nesilivere-ngwevu.Umnatha womthunzi omnyama unomlinganiselo ophezulu we-shading kunye nokupholisa ngokukhawuleza, kodwa unempembelelo enkulu kwi-photosynthesis, kwaye ifaneleke ngakumbi ukusetyenziswa kwimifuno enamagqabi.Ukuba isetyenziswe kwimifuno ethanda ukukhanya, ixesha lokugubungela kufuneka lincitshiswe;Inempembelelo encinci kwi-photosynthesis kwaye kunjaloilungele imifuno ethanda ukukhanya efana ne-nightshade.
I-2, isantya esicacileyo somthunzi
Xa abalimi bemifuno bethenga iminatha ye-sunshade, kufuneka baqale bajonge ukuba uphezulu kangakanani na umlinganiselo we-sunshade abawudingayo kwiishedi zabo.Ngaphantsi kwelanga elithe ngqo ehlotyeni, ukukhanya kokukhanya kunokufikelela kwi-60,000-100,000 lux.Kwimifuno, indawo yokuzalisa ukukhanya kwimifuno emininzi yi-30,000-60,000 lux.Umzekelo, indawo yokugcwala kwepepile yi-30,000 lux kunye ne-eggplant yi-40,000 lux.I-Lux, i-cucumber yi-55,000 lux, kunye ne-saturation point ye-tomato yi-70,000 lux.Ukukhanya okugqithisileyo kuya kuchaphazela i-photosynthesis yemifuno, okubangela ukuvalelwa kwe-carbon dioxide, ukuphefumla ngokugqithiseleyo, njl.Ngoko ke, ukusetyenziswa kwesigqubuthelo somthunzi kunye nesantya esifanelekileyo se-shading asikwazi ukunciphisa kuphela iqondo lokushisa kwi-shed ngaphambi nangemva kwemini, kodwa nokuphucula ukusebenza kwe-photosynthetic yemifuno, ukubulala iintaka ezimbini ngelitye elinye.
Umnatha we-black shading unezinga eliphezulu lomthunzi ukuya kuthi ga kwi-70%.Ukuba i-black shading net isetyenzisiwe, ukukhanya okukhanyayo akukwazi ukuhlangabezana neemfuno eziqhelekileyo zokukhula kwetamatato, okulula ukubangela ukukhula kwemilenze yetamatato kunye nokuqokelela okwaneleyo kweemveliso ze-photosynthetic.Uninzi lweminatha yesiliva-grey shade inezinga le-shading ye-40% ukuya kwi-45%, kunye nokuhanjiswa kokukhanya kwe-40,000 ukuya kwi-50,000 lux, enokuthi ihlangabezane neemfuno eziqhelekileyo zokukhula kwetamatato.Ngoko iitumato zigqunywe kakuhle ngeminatha yomthunzi wesilivere-grey.Kulabo abanokukhanya okuphantsi kokukhanya okufana nepepper, unokukhetha umnatha we-shading kunye nesantya esiphezulu se-shading, njengesilinganiselo se-shading ye-50% -70%, ukuqinisekisa ukuba ukukhanya kokukhanya kwi-shed malunga ne-30,000 lux;ukhukhamba kunye nezinye iindawo zokukhanya eziphezulu zokukhanya kwiintlobo zemifuno, kufuneka ukhethe umnatha we-shading kunye nesantya esincinci se-shading, njengezinga le-shading ye-35% -50%, ukuqinisekisa ukuba ukukhanya kokukhanya kwi-shede yi-50,000 lux.
3. Jonga umbandela
Kukho iindidi ezimbini zemathiriyeli yemveliso yeinetha ze-sunshade ezithengiswa ngoku.Enye yi-polyethylene 5000S yoxinaniso oluphezulu oluveliswe ngamashishini epetrochemical kunye nokongezwa kombala we-masterbatch kunye ne-anti-aging masterbatch., Ubunzima bokukhanya, ukuguquguquka okuphakathi, indawo egudileyo ye-mesh, ecwebezelayo, uluhlu olukhulu lohlengahlengiso lwe-shading, i-30% -95% inokufezekiswa, ubomi benkonzo bunokufikelela kwiminyaka emi-4.
Enye yenziwe ngeminatha emidala esetyenziswa kwi-sunshade okanye iimveliso zeplastiki.Isiphelo siphantsi, isandla siqinile, isilika ingqindilili, umnatha unzima, umnatha uxinene, ubunzima bunzima, izinga lomthunzi liphezulu ngokubanzi, kwaye linevumba elibi, kwaye ubomi benkonzo bufutshane. , uninzi lwayo lunokusetyenziswa kuphela unyaka omnye.Ngokubanzi ngaphezu kwe-70%, akukho phakheji ecacileyo.
4. Qaphela ngakumbi xa uthenga iminatha ye-sunshade ngokobunzima
Ngoku kukho iindlela ezimbini zokuthengisa iminatha ye-sunshade kwiimarike: enye yindawo, kwaye enye inzima.Iminatha ethengiswa ngokobunzima idla ngokuphinda isetyenziswe, kwaye inethi ezithengiswa ngokwendawo zidla ngokuba yiminatha emitsha.
Abalimi bemifuno kufuneka baphephe ezi mpazamo zilandelayo xa bekhetha:
1. Abalimi bemifuno abasebenzisa iinethi ze-shading zilula kakhulu ukuthenga iinethi ezinamazinga aphezulu e-shading xa kuthengwa iinethi ze-shading.Baya kucinga ukuba amazinga aphezulu e-shading apholile.Nangona kunjalo, ukuba izinga le-shading liphezulu kakhulu, ukukhanya kwi-shed ibuthathaka, i-photosynthesis yezityalo iyancitshiswa, kwaye iziqu zincinci kwaye zincinci, ezinciphisa isivuno sezityalo.Ngoko ke, xa ukhetha umnatha we-shading, zama ukukhetha umthunzi ngesantya esisezantsi se-shading.
2. Xa uthengela iminatha ye-shading, zama ukukhetha iimveliso ezivela kubakhiqizi abakhulu kunye neempawu ezineempawu eziqinisekisiweyo, kwaye uqinisekise ukuba iimveliso ezinewaranti engaphezulu kweminyaka emi-5 zisetyenziswa kwi-greenhouse.
3. Iimpawu zokunciphisa ukushisa komnatha we-sunshade zihoywa lula ngumntu wonke.Ngomnyaka wokuqala, i-shrinkage iyona nto ininzi, malunga ne-5%, kwaye ngokuthe ngcembe iba yincinci.Njengoko iyancipha, izinga le-shading liyanda.Ngoko ke, iimpawu zokunciphisa i-thermal kufuneka ziqwalaselwe xa kulungiswa nge-slot yekhadi.
Lo mfanekiso ungentla kukukrazuka komnatha we-sunshade obangelwa kukuncipha kobushushu.Xa umsebenzisi esebenzisa i-slot yekhadi ukuyilungisa, uyayihoxisa impawu yokunciphisa ukushisa kwaye akayigcini indawo yokunciphisa, okubangela ukuba umnatha we-sunshade ulungiswe ngokuqinileyo.
Kukho iintlobo ezimbini zeendlela zokugubungela umnatha: ukugubungela ngokupheleleyo kunye nohlobo lwe-pavilion.Kwizinto ezisebenzayo, uhlobo lwe-pavilion lusetyenziswa kakhulu ngenxa yesiphumo esingcono sokupholisa ngenxa yokujikeleza komoya.Indlela ekhethekileyo yile: sebenzisa i-skeleton ye-arch shed ukugubungela umnatha we-sunshade phezulu, kwaye ushiye ibhanti yokungena umoya we-60-80 cm kuyo.Ukuba ugqunywe ngefilimu, umnatha we-sunshade awukwazi ukugqunywa ngokuthe ngqo kwifilimu, kwaye umsantsa ongaphezulu kwe-20 cm kufuneka ushiywe ukusebenzisa umoya ukupholisa.
Ukugquma umnatha womthunzi kufuneka kwenziwe phakathi kwentsimbi ye-10:00 kusasa kunye neye-4:00 emva kwemini, ngokweqondo lobushushu.Xa amaqondo obushushu ehla ukuya kwi-30 ℃, inothi yomthunzi inokususwa, kwaye akufuneki igqunywe ngeentsuku ezinamafu ukunciphisa iziphumo ezibi kwimifuno..