Daurian birch (dub birch) yog ib tsob nroj uas muaj nyob hauv Far East, Mongolia, Nyiv, Kauslim Teb, North China. tsob ntoo no yog ib qho qhia txog av haum rau cog qoob loo. Cia peb kawm paub ntxiv txog cov nroj tsuag tshwj xeeb no.
Ntau yam txog tsob ntoo no
Dahurian birch yog cov nroj tsuag muaj npe nyob rau hauv Phau Ntawv Liab, thiab nyob rau hauv lub xeev kev tiv thaiv nyob rau hauv tshwj xeeb reserves. Cov ntoo no loj hlob nyob rau hauv qis qhov chaw ntawm lub roob slopes, feem ntau nyob rau hauv cov av, yam ntxwv ntawm noo noo thiab friability. Ib qho piv txwv ntawm xws li av yog admixture hauv hav zoov nrog cov qoob loo deciduous. Dahurian birch feem ntau cog rau hauv botanical vaj ntawm European lub teb chaws thiab Far East.
Kev piav qhia
Dahurian birch yog tsob ntoo txog 25 meters siab nrog lub ntsej muag nthuav dav. Ib tug txawv feature ntawm cov nroj tsuag no yog qhov nthuav xim ntawm bark. Cov ntoo hluas muaj cov tawv ntoo pinkish, ze rau reddish. Thiab cov xim ntawm lub qub birch - los ntawm tsaus ntuj ntixim av rau tsaus xim av. Ib feem tseem ceeb ntawm cov tawv ntoo poob tawm, tab sis ib feem tseem dai rau hauv thaj ua rau thaj, tsim kom muaj kev xav ntawm curls. Cov nyhuv no yog qhov txaus nyiam heev, tab sis tsuas yog pom ntawm qhov ze. Yog tias koj pom daim duab ntawm Dahurian birch los ntawm qhov deb, koj yuav tsis pom dab tsi tshwj xeeb ntawm lub cev.
Cov nplooj ntawm cov nroj tsuag no yog oval, tsaus ntsuab nyob rau lub caij ntuj sov thiab daj-xim av nyob rau lub caij nplooj zeeg. Lub sij hawm flowering ntawm tsob ntoo pib yuav luag tam sim ntawd tom qab qhov tsos ntawm nplooj, lub caij loj hlob yog luv.
Daurian birch (dub) yog qhov xav tau ntawm cov av, tab sis tsis muaj kev thov tshwj xeeb rau kev huv ntawm cov dej hauv av. Nws tsis zam ob qho tib si pruning thiab transplanting, nws pib loj hlob zuj zus los ntawm cov av compaction. Nws yog qhov zoo tshaj plaws rau kev tsim kho kom zoo nkauj ntawm hav zoov txoj siv sia thiab cov chaw ua si hauv nroog, vim nws sib haum xeeb nrog cov pab pawg thiab cov nroj tsuag huv si hauv thaj chaw illuminated. Thawj qhov kev piav qhia ntawm Daurian birch tau tsim nyob rau hauv 1883.
Nuance of care
tsob ntoo no hlob zoo nyob rau hauv qhov chaw zoo los yog qhov chaw ntxoov ntxoo me ntsis. Yog tias koj xav cog qoob loo xws li birch, nco ntsoov tias qhov kev ncua deb ntawm cov tua yuav tsum yog li 3-4 meters.
Y Cov av rau cog tsob ntoo yuav tsum muaj nplooj nplooj, xuab zeb thiab peat hauv qhov sib piv ntawm 2: 1: 2. Nws yog ib advisable mus ncuav dej xuab zeb txog li 15 cm. Kev cog yog qhov zoo tshaj plaws ua nyob rau hauv thaum ntxov caij nplooj ntoos hlav, thaum cov ntoo yuav tsum tsis txhob loj tshaj 5-7 xyoo. Cov ntoo laus cog nyob rau lub caij ntuj no nrog lub clod ntawm lub ntiaj teb khov, vim hais tias thaum cog rau lub caij nplooj zeeg nws loj.muaj feem yuav poob loj heev.
Nyob rau lub caij nplooj ntoo hlav thaum ntxov, nws tsim nyog saib xyuas cov ntoo kom zoo: 1 kg ntawm mullein, 10 grams ntawm urea, 15 grams ammonium nitrate yog bred nyob rau hauv ib lub thoob dej. Yog tias tsob ntoo muaj hnub nyoog 10 mus rau 20 xyoo, ces 30 litres ntawm kev daws yog txaus, thiab yog tias ntau, ces cov tshuaj yuav tsum tau nce mus rau 50 litres.
Nco ntsoov dej cov nroj tsuag thaum lub sijhawm cog thiab ib lub lim tiam tom qab.
tiv thaiv kab mob thiab cog qoob loo
Cov av rau cog birch yog loosened ntawm qhov tob ntawm 3 centimeters thaum sau cov nroj tsuag. Lub voj voog yog mulched ze ntawm lub pob tw nrog peat los yog peat compost, thiab sprinkled nrog ntoo shavings, thickness ntawm uas yog hais txog 15 cm. qhuav ceg yog pruned nyob rau hauv caij nplooj ntoos hlav.
Ib qho ntawm cov kab tsuag kab tsuag yog cov kab kab. Lawv puas nplooj thiab tua. Thiab ib cheeb tsam loj tuaj yeem rhuav tshem tsob ntoo sai sai. Yog tias cov nroj tsuag cuam tshuam los ntawm kab no, nws yog qhov zoo dua los hlawv nplooj, thiab khawb qhov ze ntawm qia.
Cov Kab Tsuag xws li cov kab mob nun silkworm thiab Corydalis bucephalus gnaw ntawm nplooj ntawm Daurian birch mus rau cov leeg. Nws yog ib advisable mus tshem tawm cov kab ntsig, thiab kho tsob ntoo nrog tshuaj tua kab. Yog hais tias May beetle larva tau ua puas lub hauv paus ntawm birch, ces koj yuav tsum tau khawb lub cev lub voj voog thiab xyuas cov av rau cov cab.
Nws yuav tsum nco ntsoov tias birch yog nquag mus rau kab mob fungi, xws li tinder. Yog tias koj tsis xav kom tsob ntoo xeb, tshuaj tsuag lub cev nrog tooj liab oxychloride.
Reproduction
Dahurian birch yog propagated by sowing noob, uas tau sau thaum lub sij hawm maturation ntawm tsej. Yuav luag universal germination poob sai sai, yog li nws yog zoo dua mus sow tam sim ntawd los yog nyob rau hauv lig Autumn. Cov noob qhuav tau muab cia rau hauv ib lub thawv airtight kom txog thaum lub sij hawm tsim nyog yub. Nrog xws li cia, 100% germination yog khaws cia rau ob xyoos.
Distinguishes Daurian birch ceev thiab muaj sia nyob zoo, tua loj hlob mus rau hauv cov qauv muaj zog. Yog hais tias cov noob tau sau tshiab, ces lawv rhiab heev rau lub teeb: nyob rau hauv ib chav tsaus lawv germinate ntawm qhov kub ntawm +15 … +32 ° C. Ntawm qhov kub ntawm 15 ° thiab qis dua, sprouts tsuas yog tsim nrog teeb pom kev zoo. Ua ntej sowing, cov noob yuav tsum tau stratified ntawm qhov kub ntawm 1 mus rau 10 ° rau 2-3 lub hlis. Koj tuaj yeem kho lawv nrog gibberellic acid ntawm qhov concentration ntawm 100 mg / l thaum nruab hnub. Qhov no yuav tiv thaiv cov noob los ntawm kab mob thiab kab tsuag.
Siv
Cov ntoo no tuaj yeem faib ua cov qoob loo hauv tiaj ua si thiab cov nroj tsuag uas xav tau ntau hauv txoj kev cog thiab lub vaj, tab sis nws tsim nyog nco ntsoov tias lawv zoo nkaus li zoo ntawm cov nyom. Lawv openwork crown, ci xim ntawm cov tawv ntoo, lub caij nplooj ntoos hlav lub teeb ntsuab nplooj thiab lub caij nplooj zeeg golden daj yuav haum txig rau hauv lub tiaj ua si cheeb tsam. Lawv mus zoo nrog oaks, maples, beech, willows, noog cherry, roob tshauv thiab txawm conifers. Thaum cog nrog tsob ntoo tsis tsim nyog, hom birch no ua "lasher", vim qhov no, qee tus raug kev txom nyem.ntau yam ntawm cov qoob loo coniferous.
