Nyob rau ntawm tam sim no, nws yog ib qhov nyuaj rau xav lub cultivation ntawm vaj teb, vaj teb thiab paj cov qoob loo uas tsis muaj chiv. Carbamide (urea) - ib qho organic compound uas muaj nitrogen hauv nws muaj pes tsawg leeg, yog ib qho hnyav ntawm dawb, grey los yog daj me ntsis. Tsis ntev los no, fertilizer tau yuav nyob rau hauv daim ntawv ntawm cov ntsiav tshuaj, ua tsaug rau lub ntev-soluble lo, thaum nws nkag mus rau hauv av, nws dissolves maj mam, uas tshem tawm ntau nitration ntawm qoob loo thiab av. Urea yog feem ntau cov concentrated ntawm nitrogen chiv, thaum tov nrog av, nws yog hloov nyob rau hauv tus ntawm av microorganisms rau hauv ammonium carbonate.
Nyob rau hauv ib txwm loj hlob thiab kev loj hlob ntawm cov nroj tsuag, nitrogen yog decisive qhov tseem ceeb, txij thaum nws yog ncaj qha ntsig txog kev tsim kho ntawm molecules thiab yog ib feem ntawm zaub protein. Lub stimulation stimulated los ntawm txoj kev loj hlob ntawm cov txiv hmab txiv ntoo cov qoob loo ua rau nws tsim nyog los noj carbamide kom tau yooj yim yields rau cov cheeb tsam me me.
Txoj kev ntawm kev siv urea
Nyob rau hauv cov huab cua, ammonium carbonate decomposes sai, yog li qhov tsis ncaj ncees lawm siv ntawm urea yog tsis zoo. Cov kws paub txog kev ua liaj ua teb, teb rau lo lus nug ntawm yuav siv li cas Herr, muab ib qho lus teb: chiv yuav tsum tau siv nyob rau hauv tej yam kev mob ntawm kev tiv thaiv av. Nitrogen raws li daim ntawv thov yuav tsum tau tam sim ntawd yuav nkag mus rau hauv cov av thiaj li tiv thaiv kom tsis txhob muaj gaseous ammonia.
Kev ntsuas rau qhov qhia txog ntawm urea
Nws yog ib qho tseem ceeb rau cov neeg cog kev loj hlob kom paub tias daim ntawv thov carbamide pom hauv lub vaj. Fertilizer yog universal, nws yuav siv tau rau sab saum toj hnav khaub ncaws ntawm tag nrho cov qoob loo nrog ib tug ntev loj hlob rau lub caij. Ua ntej cog zaub thiab Berry cov qoob loo, granules yog qhia ncaj qha mus rau hauv cov av: 5 - 12 g ntawm fertilizer ib 1 m². Rau to top hnav khaub ncaws ntawm tsim nroj tsuag 20 - 30 g ntawm carbamide yog diluted nyob rau hauv 10 liv dej. Nyob rau hauv cov ntoo uas coj tus kab carbamide, cov khoom ua ke nkag tau rau hauv av raws tag nrho qhov kev sib tw. Txog 200 g ntawm urea yog siv nyob rau hauv lub kua ntoo, thiab 120 grams rau Cherry thiab plum.
Tseem ceeb: carbamide acidifies cov av, yog li ntawd, thiaj li rau neutralize lub acid, limestone yog pom zoo: 800 g ntawm av limestone ib 1000 tauj ntawm urea.
Foliar hnav khaub ncaws nrog carbamide
Ntawm cov cim qhia ntawm nitrogen tshaib plab ntawm cov nroj tsuag, zoo li nyob rau hauv cov ntaub ntawv ntawm shedding txiv hmab txiv ntoo thiab berries, nqa tawm foliar to top hnav khaub ncaws los ntawm Txau nrog carbamide los ntawm tshwj xeeb vaj teb sprayers. Ua ntej ammonium nitrate, uas yog siv rau tib lub hom phiaj, urea muaj ib tug tseem ceeb zoo dua - nws Burns tsawg nplooj. Out-paus fertilizing nrog carbamide thaum lub sij hawm loj hlob rau lub caij yog nqa tawm ntawm tus nqi ntawm 3 liv ntawm ib tug ua hauj lwm tov rau ib 100 m². Cov ua hauj lwm daws rau zaub yog npaj raws li nram no: 50 - 60 g ntawm carbamide ib 10-liter thoob dej. Rau txiv hmab txiv ntoo thiab Berry cov qoob loo, cov ua hauj lwm daws yog npaj nyob rau ntawm tus nqi ntawm 20-30 g ib thoob dej.
Urea raws li ib txoj kev los tiv thaiv cov nroj tsuag
Carbamide yog siv los ua kev tiv thaiv kab tsuag. Nyob rau ntawm qhov pib ntawm sov caij nplooj ntoos hlav hnub ua ntej qhov pib ntawm o
Los tiv thaiv cov nroj tsuag ntawm scab, liab do taw thiab lwm yam kab mob kis, txau yog nqa tawm nyob rau hauv thawj zaug ntawm lub caij nplooj ntoos zeeg nplooj, nyob rau hauv Autumn. Txiv hmab txiv ntoo ntawm txiv hmab txiv ntoo-kev coj tus kheej ntoo thiab Berry bushes yog kev ua, raws li tau zoo raws li nplooj poob. Cov tshuaj yog npaj tib yam li rau kev puas tsuaj ntawm teeb meem kab.
Kev siv tshuaj tsuag ntawm urea yuav cia koj mus kom tau ib qho kev cog qoob loo!