| Nkhani |

Pogwiritsa ntchito udzu wa ryegrass monga zoyesera, njira ya chikhalidwe cha 32-tray plug tray matrix inagwiritsidwa ntchito pofufuza zotsatira za mitengo yobzala (njere 7, 14/thireyi) pa zokolola zitatu za udzu wolimidwa ndi kuwala koyera kwa LED (ya 17, 34). , 51 days) zotsatira pa zokolola.Zotsatira zikuwonetsa kuti ryegrass imatha kukula bwino pansi pa kuwala koyera kwa LED, ndipo liwiro la kubadwanso limathamanga pambuyo podula, ndipo limatha kupangidwa molingana ndi njira zingapo zokolola.Kuchuluka kwa mbeu kunakhudza kwambiri zokolola.Pamadulidwe atatuwo, zokolola za 14 mbewu/thireyi zinali zapamwamba kuposa 7 mbewu/thireyi.Zokolola za mitundu iwiri ya mbewuzo zidawonetsa chizolowezi chocheperako kenako ndikuwonjezeka.Zokolola zonse za 7 mbewu/thireyi ndi 14 mbewu/thireyi zinali 11.11 ndi 15.51 kg/㎡, motero, ndipo ali ndi kuthekera kogwiritsa ntchito malonda.

Zida ndi njira

Zida Zoyesera ndi Njira

Kutentha mu fakitale ya zomera kunali 24±2 °C, chinyezi chachibale chinali 35% -50%, ndipo CO2 ndende inali 500±50 μmol/mol.Nyali yoyera ya LED yokhala ndi kukula kwa 49 cm × 49 masentimita idagwiritsidwa ntchito powunikira, ndipo nyaliyo idayikidwa 40 cm pamwamba pa thireyi ya pulagi.Chiŵerengero cha masanjidwewo ndi peat: perlite: vermiculite = 3: 1: 1, onjezani madzi osungunuka kuti asakanize mofanana, sinthani madzi kukhala 55% ~ 60%, ndikusunga kwa maola 2-3 pambuyo poti matrix atenga madzi. ndiyeno wogawana yikani izo mu 54 cm × 28 masentimita mu 32-bowo pulagi.Sankhani mbewu zonenepa ndi zofanana kukula kuti mubzale.

Mayeso Mapangidwe

Kuwala kwa LED yoyera kumayikidwa ku 350 μmol/(㎡/s), kagawidwe kowoneka bwino kakuwoneka pachithunzichi, nthawi yamdima ndi 16 h/8 h, ndipo nthawi yowunikira ndi 5:00 ~ 21:00.Kuchulukana kwa mbeu ziwiri za 7 ndi 14 njere/dzenje zinayikidwa kuti zifesedwe.Pakuyesa uku, mbewuzo zidafesedwa pa Novembara 2, 2021. Atabzala, zidalimidwa mumdima.Kuunikira kunayambika pa November 5. Panthawi yolima kuwala, njira ya Hoagland ya michere inawonjezeredwa ku thireyi ya mbande.

Spectrum ya kuwala koyera kwa LED

Zizindikiro ndi Njira Zokolola

Kuwona kuti pamene pafupifupi kutalika kwa zomera kufika kutalika kwa gulu kuwala, kukolola izo.Anadulidwa pa November 22, December 9 ndi December 26, motsatira, ndi nthawi ya masiku 17.Kutalika kwa ziputu kunali 2.5 ± 0.5 cm, ndipo zomera zinasankhidwa mwachisawawa m'mabowo 3 panthawi yokolola, ndipo udzu wokolola unkayesedwa ndi kulembedwa, ndipo zokolola pa mita imodzi imodzi zinawerengedwa mu formula (1).Zokolola, W ndiye kulemera kwatsopano kwa chiputu chilichonse chodula.

Zokolola=(W×32)/0.1512/1000(kg/㎡)

(Chigawo cha mbale=0.54×0.28=0.1512 ㎡) (1)

Zotsatira ndi Analysis

Pankhani ya zokolola, zokolola za kachulukidwe kakubzalako zinali zoyamba > zachitatu > zachiwiri, 24.7 g > 15.41 g > 12.35 g (njere 7/dzenje), 36.6 g > 19.72 g motsatana.＞16.98 g (14 makapisozi/bowo).Panali kusiyana kwakukulu pakati pa kachulukidwe kobzala kuwiri pa zokolola za mbewu yoyamba, koma palibe kusiyana kwakukulu pakati pa mbewu yachiwiri, yachitatu ndi zokolola zonse.

Zotsatira za kufesa ndi nthawi yodula ziputu pa zokolola za ryegrass

Malinga ndi mapulani osiyanasiyana odulira, kuzungulira kwa kupanga kumawerengedwa.Kudulira kumodzi ndi masiku 20;kudulidwa kuwiri ndi masiku 37;ndipo kudula katatu ndi masiku 54.Mlingo wa mbeu 7/dzenje unali ndi zokolola zotsika kwambiri, 5.23 kg/㎡ yokha.Pamene mtengo wa seeding unali 14 njere/dzenje, zokolola zochulukirapo za 3 zodulidwa zinali 15.51 kg/㎡, zomwe zinali pafupifupi 3 zokolola za 7 mbewu/dzenje kudula 1 nthawi, ndipo zinali zapamwamba kwambiri kuposa nthawi zina zodula.Kutalika kwa kukula kwa mabala atatu kunali 2.7 kuwirikiza kawiri kuposa kudulidwa kumodzi, koma zokololazo zinali pafupifupi 2 kuchulukitsa kwa kudula kumodzi.Panalibe kusiyana kwakukulu pa zokolola pamene chiwerengero cha mbeu chinali 7 njere / dzenje kudula katatu ndi 14 njere / dzenje kudula ka 2, koma kusiyana kwa kuzungulira pakati pa njira ziwirizo kunali masiku 17.Pamene chiwerengero cha mbeu chinali 14 njere / dzenje zodulidwa kamodzi, zokolola sizinali zosiyana kwambiri ndi za 7 njere / dzenje zodulidwa kamodzi kapena kawiri.

Zokolola za ryegrass zimadulidwa 1-3 nthawi pansi pa mbeu ziwiri

Popanga, mashelufu angapo, kutalika kwa alumali, ndi kuchuluka kwa mbewu ziyenera kupangidwa kuti ziwonjezeko zokolola pagawo lililonse, ndikutchetcha panthawi yake kuyenera kuphatikizidwa ndi kuyezetsa kwazakudya kuti ziwonjezeke.Ndalama zachuma monga mbewu, ntchito, ndi kusunga udzu watsopano ziyenera kuganiziridwanso.Pakalipano, makampani odyetserako ziweto akukumananso ndi mavuto a dongosolo lozungulira lazinthu zopanda ungwiro komanso kutsika kwa malonda.Ikhoza kufalitsidwa m'madera akumidzi, zomwe sizingathandize kuzindikira kuphatikiza kwa udzu ndi ziweto m'dziko lonselo.Chomera fakitale kupanga osati kufupikitsa kukolola mkombero wa ryegrass, kusintha mlingo linanena bungwe pa unit dera, ndi kukwaniritsa kotunga pachaka udzu mwatsopano, komanso akhoza kumanga mafakitale malinga ndi malo kugawa ndi kukula mafakitale ulimi wa ziweto, kuchepetsa ndalama zoyendera.

Chidule

Pomaliza, ndizotheka kupanga ryegrass pansi pa chowunikira cha LED.Zokolola za 7 njere/dzenje ndi 14 mbewu/dzenje zonse zinali zokwera kuposa za mbewu zoyamba, kuwonetsa momwemonso poyamba kuchepa kenako ndikuwonjezeka.Zokolola zamitundu iwiri yobzala zidafika 11.11 kg/㎡ ndi 15.51 kg/㎡ pamasiku 54.Choncho, kupanga ryegrass m'mafakitale a zomera kumakhala ndi mwayi wochita malonda.

Wolemba: Yanqi Chen, Wenke Liu.

Zambiri zotsatiridwa:

Yanqi Chen, Wenke Liu.Zotsatira za kuchuluka kwa mbeu pa zokolola za ryegrass pansi pa kuwala koyera kwa LED[J].Agricultural Engineering Technology, 2022, 42(4): 26-28.