Video: Thaum twg seedlings yuav tsum tau muab tshem tawm los ntawm tshav kub lev?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Teb: Yog. Tawm ntawm cua sov lev on thiab teem rau tib qhov kub thiab txias 24 teev nyob rau ib hnub kom txog rau thaum lub noob tawg. Lub tswv yim ntawm kev tig nws thaum hmo ntuj feem ntau tshwm sim los ntawm kev soj ntsuam tias lub ntiaj teb txias thaum hmo ntuj thiab sov dua nyob rau nruab hnub, ua tsaug rau lub hnub.
Tsis tas li ntawd, cov yub puas xav tau cov ntaub sov so?
Germination cov lus qhia rau ntau cov noob pom zoo kom loj hlob ntawm lub cov qoob loo ntawm qhov txias txias thaum lawv tau sprouted. Txij li feem ntau cov qoob loo yuav tsis xav tau nyob rau ntawm cua sov lev ntev, ib leeg cua sov lev tuaj yeem pab pib cov noob kom txaus rau ntau lub tiaj tus.
Ib yam li ntawd, qhov kub kub npaum li cas rau cov noob germinate? Taum, piv txwv li, yuav tsuas yog tawg yog av kub yog siab tshaj 60 ° F thiab tsis sov tshaj 95 ° F. Koj tuaj yeem siv Compost Thermometer los ntsuas av kub . Kuj tseem muaj qhov "zoo kub "nyob qhov twg noob germinate yooj yim tshaj plaws.
Tsis tas li ntawd, cov yub kub mats tau kub npaum li cas?
Seedling tshav kub lev yog tsim los tsa lub hauv paus cheeb tsam kub li ntawm 10 mus rau 20 degrees Fahrenheit saum huab cua kub.
Koj ua li cas kom cov noob sov so hauv tsev?
khaws cia Nws txias heev Rau cov noob germinate, feem ntau yuav tsum tau khaws cia sov ntawm 65 mus rau 75 F. Qhov chaw nyiam ua qhov no yog nyob rau saum lub tub yees. Muaj qhov tshwj xeeb, ua kom sov? noob mats uas koj tuaj yeem yuav muab tso rau hauv koj cov noob. Koj tuaj yeem siv lub tshuab cua sov me me rau ntawm lub sijhawm teem rau ntawm koj cov qoob loo.
Pom zoo:
Dab tsi ntawm impurities tuaj yeem raug tshem tawm ntawm cov organic compound los ntawm distillation?
Ua haujlwm kom raug, distillation tuaj yeem tshem tawm txog 99.5 feem pua ntawm cov impurities ntawm dej, suav nrog cov kab mob, hlau, nitrate, thiab cov khoom tawg
Peb xav li cas thaum tshav kub kub?
Los teb koj cov lus nug: Lub hnub lub teeb ncav cuag lub ntiaj teb thiab ua kom sov huab cua thiab hauv av. Cov huab cua thiab hauv av rov ua dua cov cua sov uas koj xav tias nyob rau saum cov cua sov uas koj xav tau los ntawm lub teeb ncaj qha ua kom sov koj lub cev
Koj yuav daws tau qhov system ntawm peb qhov sib npaug li cas los ntawm kev tshem tawm?
Xaiv ib qho sib txawv ntawm ob qhov sib npaug, hais qhov sib npaug (2) thiab (3), thiab tshem tawm qhov sib txawv. Kev daws qhov system tsim los ntawm kev sib npaug (4) thiab (5). Tam sim no, hloov z = 3 rau hauv kab zauv (4) kom pom y. Siv cov lus teb los ntawm Kauj Ruam 4 thiab hloov mus rau hauv ib qho kev sib npaug uas muaj qhov sib txawv ntxiv
Thaum tshav kub kub muaj peev xwm vs tshwj xeeb tshav kub yog dab tsi?
Molar Thaum tshav kub kub muaj peev xwm yog ib qho kev ntsuas ntawm cov cua sov uas tsim nyog los nce qhov kub ntawm ib mole ntawm ib tug ntshiab tshuaj los ntawm ib tug degree K. Tshwj xeeb kub muaj peev xwm yog ib qho kev ntsuas ntawm tus nqi ntawm cov cua sov tsim nyog los nce qhov kub ntawm ib gram ntawm ib tug ntshiab. khoom los ntawm ib degree K
Thaum twg koj yuav tsum siv correlation thiab thaum twg koj yuav tsum siv yooj yim linear regression?
Regression feem ntau yog siv los tsim cov qauv / qhov sib npaug los kwv yees cov lus teb tseem ceeb, Y, los ntawm cov txheej txheem kwv yees (X) sib txawv. Kev sib raug zoo feem ntau yog siv los ua kom sai thiab ua kom luv luv cov kev taw qhia thiab lub zog ntawm kev sib raug zoo ntawm ib pawg ntawm 2 lossis ntau tus lej sib txawv