Kev tshawb fawb txog qhov tshwm sim ntawm LED Ntxiv Lub Teeb rau Kev Tshaj Tawm Tshaj Tawm ntawm Hydroponic Lettuce thiab Pakchoi hauv Tsev Kho Mob hauv Lub Caij Ntuj No
[Cov Lus Qhia] Lub caij ntuj no hauv Shanghai feem ntau ntsib qhov kub thiab txias tsis tshua muaj hnub ci, thiab kev loj hlob ntawm hydroponic nplooj zaub hauv tsev cog khoom qeeb qeeb thiab lub voj voog ntau lawm ntev, uas tsis tuaj yeem ua tau raws li kev lag luam xav tau. Nyob rau hauv xyoo tas los no, LED cog ntxiv teeb tau pib siv rau hauv tsev cog khoom cog thiab kev tsim khoom, rau qee qhov, txhawm rau tsim kom muaj qhov tsis xws luag uas niaj hnub tsim teeb pom kev hauv tsev cog khoom tsis tuaj yeem ua tau raws li cov kev xav tau ntawm cov qoob loo loj hlob thaum lub teeb ntuj. tsis txaus. Hauv kev sim, ob hom LED ntxiv teeb nrog lub teeb pom kev sib txawv tau teeb tsa hauv tsev cog khoom kom ua tiav qhov kev tshawb nrhiav ntawm kev tsim cov hydroponic lettuce thiab qia ntsuab nyob rau lub caij ntuj no. Cov txiaj ntsig tau pom tias ob hom LED teeb tuaj yeem nce qhov hnyav ntawm ib tsob ntoo ntawm pakchoi thiab lettuce. Cov txiaj ntsig nce ntxiv ntawm pakchoi yog qhov tseem ceeb hauv kev txhim kho ntawm tag nrho cov kev hnov ​​​​lus zoo xws li nplooj o thiab thickening, thiab yield-nce nyhuv ntawm lettuce yog feem ntau xav txog qhov nce ntawm cov nplooj thiab qhuav cov ntsiab lus.

Lub teeb yog ib feem tseem ceeb ntawm kev loj hlob ntawm cov nroj tsuag. Nyob rau hauv xyoo tas los no, LED teeb tau siv dav hauv kev cog qoob loo thiab kev tsim khoom hauv tsev cog khoom ib puag ncig vim lawv qhov kev hloov pauv ntawm cov duab hluav taws xob siab, cov spectrum customizable, thiab lub neej ua haujlwm ntev [1]. Nyob rau hauv txawv teb chaws lub teb chaws, vim hais tias thaum ntxov pib ntawm cov kev tshawb fawb muaj feem xyuam thiab kev loj hlob txhawb system, ntau loj-scale paj, txiv hmab txiv ntoo thiab zaub ntau lawm muaj kuj ua tiav lub teeb ntxiv tswv yim. Lub tsub zuj zuj ntawm ib tug loj npaum li cas ntawm cov ntaub ntawv ntau lawm kuj tso cai rau cov neeg tsim khoom kom meej meej kwv yees cov txiaj ntsig ntawm kev nce ntau lawm. Nyob rau tib lub sijhawm, kev rov qab los tom qab siv lub teeb ci LED ntxiv tau raug ntsuas [2]. Txawm li cas los xij, feem ntau ntawm cov kev tshawb fawb hauv tsev tam sim no ntawm cov teeb pom kev ntxiv yog ua rau lub teeb pom kev zoo me me thiab kev ua kom zoo dua qub, thiab tsis muaj cov tswv yim ntxiv teeb pom kev zoo uas tuaj yeem siv rau hauv kev tsim khoom tiag tiag[3]. Ntau tus neeg tsim khoom hauv tsev yuav ncaj qha siv cov kev daws teeb meem txawv teb chaws uas twb muaj lawm thaum siv cov cuab yeej siv teeb pom kev zoo ntxiv rau kev tsim khoom, tsis hais txog kev nyab xeeb ntawm thaj chaw tsim khoom, hom zaub tsim, thiab cov xwm txheej ntawm cov chaw thiab khoom siv. Tsis tas li ntawd, tus nqi siab ntawm cov khoom siv hluav taws xob ntxiv thiab kev siv lub zog siab feem ntau ua rau muaj qhov sib txawv loj ntawm cov qoob loo tiag tiag thiab kev lag luam rov qab los thiab cov txiaj ntsig xav tau. Xws li qhov xwm txheej tam sim no tsis yog qhov tsim nyog rau txoj kev loj hlob thiab kev txhawb nqa ntawm kev siv thev naus laus zis ntawm kev txhawb nqa lub teeb thiab nce ntau lawm hauv lub tebchaws. Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tsum tau ua kom tsim nyog muab cov khoom lag luam zoo LED ntxiv rau hauv qhov chaw tsim khoom hauv tsev, ua kom zoo siv cov tswv yim, thiab khaws cov ntaub ntawv tseem ceeb.

Lub caij ntuj no yog lub caij thaum cov zaub ntsuab tshiab yog qhov xav tau zoo. Cov tsev cog khoom muaj peev xwm muab qhov chaw zoo dua rau cov nplooj ntoo loj hlob nyob rau lub caij ntuj no dua li kev ua liaj ua teb sab nraum zoov. Txawm li cas los xij, ib tsab xov xwm tau taw qhia tias qee lub tsev cog khoom laus lossis tsis zoo huv si muaj lub teeb xa hluav taws xob tsawg dua 50% hauv lub caij ntuj no. qhov kub thiab txias ib puag ncig, uas cuam tshuam rau kev loj hlob ntawm cov nroj tsuag. Lub teeb tau dhau los ua qhov txwv rau kev loj hlob ntawm cov zaub hauv lub caij ntuj no [4]. Green Cube uas tau muab tso rau hauv cov khoom siv tiag tiag yog siv hauv kev sim. Cov kua dej ntiav cov nplooj ntoo cog qoob loo yog txuam nrog Signify (China) Investment Co., Ltd.'s ob LED sab saum toj lub teeb modules nrog lub teeb xiav sib txawv. Cog lettuce thiab pakchoi, uas yog ob nplooj zaub nrog kev xav tau ntawm kev ua lag luam ntau dua, lub hom phiaj los kawm txog qhov nce ntawm cov zaub hydroponic los ntawm LED teeb pom kev zoo nyob rau lub caij ntuj no tsev cog khoom.

Cov ntaub ntawv thiab cov txheej txheem
Cov ntaub ntawv siv rau kev xeem

Cov khoom siv sim siv hauv kev sim yog lettuce thiab packchoi zaub. Lettuce ntau yam, Green Leaf Lettuce, los ntawm Beijing Dingfeng Modern Agriculture Development Co., Ltd., thiab pakchoi ntau yam, Brilliant Green, los ntawm Horticulture Institute ntawm Shanghai Academy of Agricultural Sciences.

Txoj kev sim

Qhov kev sim tau ua nyob rau hauv Wenluo hom iav tsev cog khoom ntawm Sunqiao puag ntawm Shanghai ntsuab lub voos xwmfab Agricultural Development Co., Ltd. txij lub Kaum Ib Hlis 2019 txog Lub Ob Hlis 2020. Tag nrho ntawm ob qhov kev sim rov ua dua. Thawj qhov kev sim yog nyob rau thaum xaus ntawm 2019, thiab qhov thib ob yog thaum pib ntawm 2020. Tom qab sowing, cov ntaub ntawv sim tau muab tso rau hauv lub teeb hluav taws xob teeb pom kev zoo rau kev cog qoob loo, thiab siv cov dej ntws tawm. Thaum lub caij cog qoob loo, cov kev daws teeb meem dav dav ntawm cov zaub hydroponic nrog EC ntawm 1.5 thiab pH ntawm 5.5 tau siv rau kev siv dej. Tom qab cov yub loj hlob mus rau 3 nplooj thiab 1 lub plawv theem, lawv tau cog rau ntawm lub voos xwmfab ntsuab khiav hom ntiav ntiav nplooj ntoo cog txaj. Tom qab cog, cov dej ntiav ntiav cov khoom siv tau siv EC 2 thiab pH 6 cov khoom noj khoom haus rau cov dej txhua hnub. Kev siv dej ntau zaus yog 10 feeb nrog dej thiab 20 feeb nrog dej nres. Pawg tswj hwm (tsis muaj lub teeb ntxiv) thiab pab pawg kho mob (LED teeb ntxiv) tau teeb tsa hauv kev sim. CK tau cog rau hauv iav tsev cog khoom yam tsis muaj lub teeb ntxiv. LB: drw-lb Ho (200W) tau siv los ntxiv lub teeb tom qab cog hauv iav tsev cog khoom. Lub teeb flux ceev (PPFD) nyob rau saum npoo ntawm hydroponic zaub canopy yog hais txog 140 μmol / (㎡·S). MB: Tom qab cog hauv lub tsev cog khoom iav, drw-lb (200W) tau siv los ntxiv lub teeb, thiab PPFD yog li 140 μmol / (㎡·S).

Thawj qhov kev sim cog hnub tim yog lub Kaum Ib Hlis 8, 2019, thiab hnub cog yog lub Kaum Ib Hlis 25, 2019. Cov pab pawg kuaj lub teeb ntxiv lub sij hawm yog 6:30-17:00; Hnub thib ob ntawm kev sim cog hnub yog Lub Kaum Ob Hlis 30, 2019 Hnub, hnub cog yog Lub Ib Hlis 17, 2020, thiab lub sijhawm ntxiv ntawm pawg sim yog 4:00-17:00.
Nyob rau hauv tshav ntuj huab cua nyob rau lub caij ntuj no, lub tsev xog paj yuav qhib lub hnub ci, sab zaj duab xis thiab kiv cua rau txhua hnub cua los ntawm 6:00-17:00. Thaum tsaus ntuj, lub tsev xog paj yuav kaw lub skylight, sab yob zaj duab xis thiab kiv cua ntawm 17:00-6:00 (hnub tom qab), thiab qhib lub thermal rwb thaiv tsev curtains nyob rau hauv lub tsev xog paj thaum hmo ntuj preservation.

Cov ntaub ntawv khaws cia

Cov nroj tsuag qhov siab, tus naj npawb ntawm nplooj, thiab qhov hnyav ntawm ib tsob nroj tau txais tom qab sau cov saum toj kawg nkaus ntawm Qingjingcai thiab lettuce. Tom qab ntsuas qhov hnyav tshiab, nws tau muab tso rau hauv qhov cub thiab qhuav ntawm 75 ℃ rau 72 teev. Tom qab qhov kawg, qhov hnyav qhuav tau txiav txim siab. Qhov kub thiab txias hauv tsev cog khoom thiab Photosynthetic Photon Flux Density (PPFD, Photosynthetic Photon Flux Density) yog sau thiab kaw txhua txhua 5 min los ntawm qhov ntsuas kub (RS-GZ-N01-2) thiab photosynthetically active radiation sensor (GLZ-CG).

Kev txheeb xyuas cov ntaub ntawv

Xam cov kev siv lub teeb pom kev zoo (LUE, Light Use Efficiency) raws li cov qauv hauv qab no:
LUE (g / mol) = zaub yield per unit cheeb tsam / tag nrho cov cumulative npaum li cas ntawm lub teeb tau los ntawm zaub rau ib chav tsev cheeb tsam ntawm cog mus rau sau
Xam cov ntsiab lus qhuav qhuav raws li cov qauv hauv qab no:
Cov ntsiab lus qhuav qhuav (%) = qhuav qhov hnyav rau ib tsob nroj / tshiab yuag ib tsob ntoo x 100%
Siv Excel2016 thiab IBM SPSS Statistics 20 los tshuaj xyuas cov ntaub ntawv hauv kev sim thiab txheeb xyuas qhov tseem ceeb ntawm qhov sib txawv.

Cov ntaub ntawv thiab cov txheej txheem
Lub teeb thiab kub

Thawj qhov kev sim siv sijhawm 46 hnub txij thaum cog mus txog sau, thiab qhov thib ob siv 42 hnub txij thaum cog mus txog sau. Thaum lub sij hawm thawj zaug ntawm kev sim, qhov nruab nrab txhua hnub nyob rau hauv lub tsev xog paj yog feem ntau nyob rau hauv thaj tsam ntawm 10-18 ℃; Thaum lub sij hawm thib ob ntawm kev sim, qhov hloov pauv ntawm qhov nruab nrab nruab nrab ntawm txhua hnub hauv tsev cog khoom yog qhov hnyav dua li qhov kev sim thawj zaug, nrog qhov qis tshaj qhov nruab nrab txhua hnub ntawm 8.39 ℃ thiab qhov siab tshaj qhov nruab nrab txhua hnub ntawm 20.23 ℃. Qhov ntsuas kub nruab nrab txhua hnub tau pom tias muaj kev nce siab tag nrho thaum lub sijhawm kev loj hlob (Fig. 1).

Thaum lub sij hawm thawj zaug ntawm kev sim, lub teeb ib hnub (DLI) nyob rau hauv tsev xog paj fluctuated tsawg dua 14 mol / (㎡·D). Thaum lub sij hawm thib ob ntawm kev sim, qhov niaj hnub sib sau ntau npaum li cas ntawm lub teeb ntuj nyob rau hauv tsev xog paj tau qhia tag nrho cov kev nce siab, uas siab tshaj 8 mol / (㎡·D), thiab qhov siab tshaj plaws tus nqi tau tshwm sim rau Lub Ob Hlis 27, 2020, uas yog 26.1 mol. /(㎡·D). Kev hloov pauv txhua hnub ntawm cov teeb pom kev zoo nyob hauv tsev cog khoom thaum lub sijhawm thib ob ntawm kev sim tau loj dua li ntawm thawj qhov kev sim (Daim duab 2). Thaum thawj zaug ntawm kev sim, tag nrho cov teeb pom kev zoo txhua hnub (cov txiaj ntsig ntawm lub teeb ntuj DLI thiab coj lub teeb ntxiv DLI) ntawm pab pawg teeb pom kev ntxiv yog siab dua 8 mol / (㎡·D) feem ntau. Thaum lub sij hawm thib ob ntawm qhov kev sim, tag nrho cov teeb pom kev niaj hnub ntawm cov pab pawg teeb pom kev ntxiv yog ntau dua 10 mol / (㎡·D) feem ntau. Tag nrho cov nyiaj ntxiv ntawm lub teeb ntxiv hauv qhov thib ob yog 31.75 mol / ㎡ ntau dua li ntawm thawj puag ncig.

Leafy Zaub yield thiab lub teeb zog siv Efficiency

● Thawj qhov kev xeem ntsuas
Nws tuaj yeem pom los ntawm daim duab 3 tias LED-suppleted pakchoi hlob zoo dua, cov nroj tsuag zoo li compact, thiab nplooj yog loj thiab tuab dua li cov uas tsis yog CK ntxiv. LB thiab MB pakchoi nplooj yog ci dua thiab tsaus ntsuab dua li CK. Nws tuaj yeem pom los ntawm daim duab 4 tias cov lettuce nrog LED ntxiv lub teeb loj hlob zoo dua li CK yam tsis muaj lub teeb ntxiv, cov nplooj ntau dua, thiab cov nroj tsuag zoo li puv.

Nws tuaj yeem pom los ntawm Table 1 tias tsis muaj qhov sib txawv tseem ceeb hauv qhov siab ntawm tsob ntoo, nplooj nplooj, cov ntsiab lus qhuav qhuav thiab lub teeb lub zog siv kev ua haujlwm ntawm pakchoi kho nrog CK, LB thiab MB, tab sis qhov hnyav tshiab ntawm pakchoi kho nrog LB thiab MB yog ntau dua li ntawm CK; Tsis muaj qhov sib txawv tseem ceeb hauv qhov hnyav ntawm ib tsob nroj ntawm ob lub teeb pom kev loj hlob nrog lub teeb xiav sib txawv hauv kev kho LB thiab MB.

Nws tuaj yeem pom los ntawm cov lus 2 tias cov nroj tsuag qhov siab ntawm lettuce hauv kev kho LB yog qhov siab dua li qhov kev kho CK, tab sis tsis muaj qhov sib txawv ntawm LB kev kho mob thiab MB kev kho mob. Muaj qhov sib txawv tseem ceeb ntawm cov nplooj ntawm peb txoj kev kho mob, thiab cov nplooj ntawm MB kev kho mob yog qhov siab tshaj plaws, uas yog 27. Qhov hnyav ntawm ib tsob nroj ntawm LB kev kho mob yog qhov siab tshaj plaws, uas yog 101g. Kuj tseem muaj qhov sib txawv ntawm ob pawg. Tsis muaj qhov sib txawv tseem ceeb hauv cov ntsiab lus qhuav ntawm CK thiab LB kev kho mob. Cov ntsiab lus ntawm MB yog 4.24% siab dua CK thiab LB kev kho mob. Muaj qhov sib txawv tseem ceeb hauv kev siv lub teeb pom kev zoo ntawm peb txoj kev kho mob. Kev siv lub teeb pom kev zoo tshaj plaws yog nyob rau hauv kev kho LB, uas yog 13.23 g / mol, thiab qis tshaj yog nyob rau hauv kev kho mob CK, uas yog 10.72 g / mol.

● Qhov thib ob ntawm cov qhabnias

Nws tuaj yeem pom los ntawm Table 3 tias cov nroj tsuag qhov siab ntawm Pakchoi kho nrog MB yog qhov siab dua li ntawm CK, thiab tsis muaj qhov sib txawv ntawm nws thiab LB kev kho mob. Tus naj npawb ntawm nplooj ntawm Pakchoi kho nrog LB thiab MB tau nce siab dua li nrog CK, tab sis tsis muaj qhov sib txawv tseem ceeb ntawm ob pawg ntawm kev kho lub teeb ntxiv. Muaj qhov sib txawv tseem ceeb hauv qhov hnyav ntawm ib tsob nroj ntawm peb txoj kev kho mob. Qhov hnyav tshiab ib tsob nroj hauv CK yog qhov qis tshaj ntawm 47 g, thiab kev kho mob MB yog qhov siab tshaj plaws ntawm 116 g. Tsis muaj qhov sib txawv tseem ceeb hauv cov ntsiab lus qhuav ntawm peb txoj kev kho mob. Muaj qhov sib txawv tseem ceeb hauv kev siv lub teeb pom kev zoo. CK yog qis ntawm 8.74 g / mol, thiab kev kho mob MB yog qhov siab tshaj ntawm 13.64 g / mol.

Nws tuaj yeem pom los ntawm Table 4 tias tsis muaj qhov sib txawv tseem ceeb hauv cov nroj tsuag qhov siab ntawm lettuce ntawm peb txoj kev kho mob. Tus naj npawb ntawm nplooj hauv LB thiab MB kev kho mob tau nce siab dua li hauv CK. Ntawm lawv, cov nplooj MB yog qhov siab tshaj plaws ntawm 26. Tsis muaj qhov sib txawv ntawm cov nplooj ntawm LB thiab MB kev kho mob. Qhov hnyav tshiab rau ib tsob nroj ntawm ob pawg ntawm kev kho lub teeb ntxiv tau nce siab dua li ntawm CK, thiab qhov hnyav tshiab ib tsob nroj yog qhov siab tshaj plaws hauv MB kev kho mob, uas yog 133g. Kuj tseem muaj qhov sib txawv tseem ceeb ntawm LB thiab MB kev kho mob. Muaj qhov sib txawv tseem ceeb ntawm cov ntsiab lus qhuav ntawm peb qhov kev kho mob, thiab cov ntsiab lus qhuav ntawm LB kev kho mob yog qhov siab tshaj plaws, uas yog 4.05%. Lub teeb lub zog siv kev ua haujlwm ntawm MB kev kho mob yog qhov siab dua li kev kho CK thiab LB, uas yog 12.67 g / mol.

Thaum lub sij hawm thib ob ntawm kev sim, tag nrho DLI ntawm pab pawg neeg lub teeb ntxiv tau ntau dua li DLI thaum tib cov hnub colonization thaum thawj zaug ntawm kev sim (Daim duab 1-2), thiab lub sij hawm ntxiv lub teeb ntawm lub teeb ntxiv. pab pawg kho mob hauv qhov kev sim thib ob (4:00-00-17:00). Piv nrog rau thawj qhov kev sim (6: 30-17: 00), nws nce 2.5 teev. Lub sijhawm sau qoob loo ntawm ob lub voj voog ntawm Pakchoi yog 35 hnub tom qab cog. Qhov hnyav tshiab ntawm CK ib tus neeg cog hauv ob lub voj voog zoo sib xws. Qhov sib txawv ntawm qhov hnyav tshiab rau ib tsob nroj hauv LB thiab MB kev kho mob piv rau CK hauv qhov kev sim thib ob yog ntau dua qhov txawv ntawm qhov hnyav tshiab ib tsob nroj piv rau CK hauv thawj qhov kev sim (Table 1, Table 3). Lub sij hawm sau qoob loo ntawm qhov thib ob ntawm kev sim lettuce yog 42 hnub tom qab cog, thiab lub sij hawm sau ntawm thawj puag ncig ntawm kev sim lettuce yog 46 hnub tom qab cog. Tus naj npawb ntawm cov hnub colonization thaum qhov thib ob ntawm kev sim lettuce CK tau sau yog 4 hnub tsawg dua li ntawm thawj puag ncig, tab sis qhov hnyav tshiab rau ib tsob nroj yog 1.57 npaug ntawm thawj qhov kev sim (Table 2 thiab Table 4), thiab lub teeb hluav taws xob siv hluav taws xob zoo sib xws. Nws tuaj yeem pom tau tias thaum qhov kub thiab txias maj mam sov thiab lub teeb ntuj hauv lub tsev cog khoom maj mam nce, lub voj voog ntawm lettuce yog luv.

Cov ntaub ntawv thiab cov txheej txheem
Ob qhov kev sim ntsuas tau npog tag nrho lub caij ntuj no hauv Shanghai, thiab pawg tswj hwm (CK) tuaj yeem rov qab kho cov xwm txheej ntawm hydroponic ntsuab stalk thiab lettuce nyob rau hauv lub tsev xog paj nyob rau hauv tsis tshua muaj kub thiab tshav ntuj nyob rau hauv lub caij ntuj no. Cov pab pawg ua haujlwm ntxiv lub teeb pom kev muaj txiaj ntsig tseem ceeb tshaj plaws ntawm cov ntaub ntawv tseem ceeb tshaj plaws (cov nyhav tshiab ib tsob nroj) hauv ob qhov kev sim. Ntawm lawv, cov txiaj ntsig nce ntawm Pakchoi tau cuam tshuam txog qhov loj, xim thiab tuab ntawm nplooj tib lub sijhawm. Tab sis lettuce nyhav nce tus naj npawb ntawm nplooj, thiab cov nroj tsuag zoo li fuller. Cov txiaj ntsig kev sim qhia tau hais tias lub teeb ntxiv tuaj yeem txhim kho qhov hnyav tshiab thiab cov khoom lag luam zoo hauv kev cog qoob loo ntawm ob pawg zaub, yog li nce kev lag luam ntawm cov khoom lag luam zaub. Pakchoi supplemented los ntawm Cov liab-dawb, qis-xiav thiab liab-dawb, nruab nrab-xiav LED sab saum toj-lub teeb modules yog tsaus ntsuab thiab ci nyob rau hauv tsos zoo li cov nplooj tsis muaj ntxiv teeb, nplooj yog loj thiab thicker, thiab txoj kev loj hlob ntawm tag nrho cov hom nroj tsuag yog ntau compact thiab vigorous. Txawm li cas los xij, "mosaic lettuce" belongs rau lub teeb ntsuab nplooj zaub, thiab tsis muaj cov txheej txheem hloov xim pom tseeb hauv txoj kev loj hlob. Kev hloov ntawm nplooj xim tsis pom tseeb rau tib neeg qhov muag. Qhov kev faib ua feem tsim nyog ntawm lub teeb xiav tuaj yeem txhawb nqa nplooj ntoo thiab photosynthetic pigment synthesis, thiab inhibit internode elongation. Yog li ntawd, cov zaub nyob rau hauv lub teeb ntxiv pab pawg neeg yog ntau nyiam los ntawm cov neeg siv khoom nyob rau hauv tsos zoo.

Thaum lub sij hawm qhov thib ob ntawm qhov kev xeem, tag nrho cov niaj hnub cumulative light kom muaj nuj nqis ntawm pab pawg neeg lub teeb ntxiv yog ntau dua li DLI thaum lub sij hawm tib lub sij hawm colonization hnub nyob rau hauv thawj puag ncig ntawm qhov kev sim (Daim duab 1-2), thiab lub teeb ntxiv. lub sij hawm ntawm qhov thib ob puag ncig ntawm pab pawg neeg kho lub teeb ntxiv (4: 00-17: 00), piv nrog rau thawj qhov kev sim (6: 30-17: 00), nws nce 2.5 teev. Lub sijhawm sau qoob loo ntawm ob lub voj voog ntawm Pakchoi yog 35 hnub tom qab cog. Qhov hnyav tshiab ntawm CK hauv ob lub voj voog zoo sib xws. Qhov sib txawv ntawm qhov hnyav tshiab ib tsob nroj ntawm LB thiab MB kev kho mob thiab CK hauv qhov kev sim thib ob yog qhov loj dua qhov sib txawv ntawm qhov hnyav tshiab ib tsob nroj nrog CK hauv thawj qhov kev sim (Table 1 thiab Table 3). Yog li ntawd, ncua sij hawm ntxiv lub teeb tuaj yeem txhawb kev nce hauv kev tsim cov hydroponic Pakchoi cog rau sab hauv tsev thaum lub caij ntuj no. Lub sij hawm sau qoob loo ntawm qhov thib ob ntawm kev sim lettuce yog 42 hnub tom qab cog, thiab lub sij hawm sau ntawm thawj puag ncig ntawm kev sim lettuce yog 46 hnub tom qab cog. Thaum qhov thib ob ntawm kev sim lettuce tau sau, tus naj npawb ntawm cov hnub colonization ntawm pawg CK yog 4 hnub tsawg dua li ntawm thawj puag ncig. Txawm li cas los xij, qhov hnyav tshiab ntawm ib tsob nroj yog 1.57 npaug ntawm thawj qhov kev sim (Table 2 thiab Table 4). Lub teeb hluav taws xob siv hluav taws xob zoo sib xws. Nws tuaj yeem pom tau tias thaum qhov kub thiab txias maj mam nce thiab lub teeb ntuj hauv lub tsev cog khoom maj mam nce (Daim duab 1-2), lub voj voog ntawm lettuce tuaj yeem luv luv raws li. Yog li ntawd, ntxiv cov khoom siv ntxiv teeb rau lub tsev cog khoom thaum lub caij ntuj no nrog qhov kub thiab txias tsis tshua muaj hnub ci tuaj yeem txhim kho cov txiaj ntsig ntawm lettuce, thiab tom qab ntawd nce ntau lawm. Hauv thawj qhov kev sim, cov nplooj ntawv zaub mov cog ntxiv lub teeb siv hluav taws xob yog 0.95 kw-h, thiab hauv qhov thib ob ntawm kev sim, cov nplooj ntawv zaub mov cog ntxiv lub teeb siv hluav taws xob yog 1.15 kw-h. Piv nrog rau ntawm ob qhov kev sim, kev siv lub teeb ntawm peb qhov kev kho mob ntawm Pakchoi, kev siv hluav taws xob hauv kev sim thib ob tau qis dua qhov kev sim thawj zaug. Lub teeb hluav taws xob siv hluav taws xob ua haujlwm ntawm lettuce CK thiab LB supplementary lub teeb kho pab pawg hauv qhov kev sim thib ob tau qis dua me ntsis hauv thawj qhov kev sim. Nws yog inferred tias yog vim li cas yog hais tias qhov nruab nrab nruab nrab kub nruab nrab nyob rau hauv ib lub lis piam tom qab cog ua rau lub qeeb yub lub sij hawm ntev dua, thiab txawm hais tias qhov kub thiab txias rebounded me ntsis thaum lub sij hawm sim, qhov ntau yog txwv, thiab tag nrho cov niaj hnub nruab nrab kub yog tseem. nyob rau theem qis, uas txwv tsis pub lub teeb lub zog siv efficiency thaum lub sij hawm tag nrho kev loj hlob voj voog rau hydroponics ntawm nplooj zaub. (Daim duab 1).

Thaum lub sij hawm sim, lub pas dej ua kua dej tsis tau nruab nrog cov cuab yeej ua kom sov, yog li cov hauv paus ib puag ncig ntawm hydroponic nplooj zaub yog ib txwm nyob rau ntawm qhov kub thiab txias, thiab qhov nruab nrab nruab nrab txhua hnub yog txwv, uas ua rau cov zaub tsis tuaj yeem siv tag nrho. ntawm txhua hnub cumulative teeb tau nce los ntawm kev ncua lub LED ntxiv teeb. Yog li ntawd, thaum supplementing lub teeb nyob rau hauv lub tsev xog paj nyob rau hauv lub caij ntuj no, nws yog ib qhov tsim nyog yuav tau xav txog qhov tsim nyog thaum tshav kub kub preservation thiab cua sov ntsuas los xyuas kom meej cov nyhuv ntawm supplementing lub teeb kom ntau lawm. Yog li ntawd, nws yog ib qho tsim nyog yuav tau xav txog kev ntsuas tsim nyog ntawm kev txuag hluav taws xob thiab qhov kub thiab txias kom ntseeg tau tias cov txiaj ntsig ntawm lub teeb ntxiv thiab cov txiaj ntsig nce hauv lub caij ntuj no tsev cog khoom. Kev siv lub teeb ci LED ntxiv yuav ua rau cov nqi tsim khoom nce rau qee qhov, thiab kev ua liaj ua teb nws tus kheej tsis yog kev lag luam siab. Yog li ntawd, hais txog yuav ua li cas los txhim kho lub teeb pom kev zoo ntxiv thiab koom tes nrog lwm cov kev ntsuas hauv kev tsim cov zaub ntsuab hydroponic nyob rau lub caij ntuj no, thiab yuav ua li cas siv cov khoom siv hluav taws xob ntxiv kom ua tiav cov khoom tsim tau zoo thiab txhim kho kev siv hluav taws xob siv hluav taws xob thiab cov txiaj ntsig kev lag luam. , nws tseem xav tau kev sim ntau lawm.

Sau: Yiming Ji, Kang Liu, Xianping Zhang, Honglei Mao (Shanghai ntsuab lub voos xwmfab Agricultural Development Co., Ltd.).
Qhov chaw: Agricultural Engineering Technology (Greenhouse Horticulture).

Cov ntaub ntawv:
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