Kungekudala, ukuvuna kwendawo yommandla ongasemdeni awuvuyayo? Ngoko, lixesha lokuba ufunde ukuba isichumisi esibizwa ngokuba yi-urea sele sisetyenzisiwe kuphela kwintsimi, kodwa kwintsimi. Ukusebenzisa ukusetyenziswa kwakhe okufanelekileyo, unokufumana iziphumo ezintle.
Ukubunjwa kwe-urea njengesichumisi
Urea ligama eliqhelekileyo elibizwa ngokuba yi-carbamide yamakhemikhali. Kwakhona kuthiwa yi-carbonic acid diamide, kodwa kwindawo ekhethekileyo. U-Ogorodniki uyazi nokuba urea ibhekisela kwiifomethri eziqukethe i-nitrojeni-45% yesilinganisi esisonke. Ihlanganiswa kwizinto ezingekhoyo kwaye iinezixhobo ezininzi. Amakristal aMhlophe okanye afihliweyo enkunkuma ayichithwa emanzini kwaye asetyenziselwa ukunkcenkceshela kunye nokutshiza okanye afakwa emhlabathini kwindawo yokuqala.
Urea usebenza njani?
Akuyena wonke umntu owaziyo uhlobo luni lwesichumiso urea. Ibhekisela kwi-nitrogen fertilizer, oku, mhlawumbi, ithathwa njengento ebalulekileyo kwimpilo yezityalo. Ukungena emhlabathini ngendlela ye-crystals, isichumisi sijika sibe yi-ammonium carbon dioxide okanye i-ammonia ye-gaseous. Nguye othembisa ukuthintela zonke izityalo zityalo. Ngoko, urea ithandwa ngenxa yokuba:
- likhawuleza ukwahlula kweeseli zezityalo, ukukhulisa ukukhula;
- kuphucula i-nitrogen kwizityalo ezibuthathaka;
- ukulwa nezilwanyana ezinambuzane;
- izalisa umhlaba nge nitrogen.
Urea ungagcinwa ixesha elingakanani?
Ubomi besafufesi yeso sityalo njengoko urea ungenamkhawulo. Nangona ixesha lewaranti liinyanga ezintandathu kwiipakethi. Kuze kube nini le tyulo isetyenziswe kuxhomekeke kumgama omkhulu kwiimeko zokugcina. Gcina urea kwisitya esityiwe ngokucopheleleyo okanye kwiingxowa ezingenakulungiswa.
Ukuba isilwanyana siya kuqhagamshelana nomoya, ngoko ngexesha lokuxinwa kwalo kuya kuncipha kakhulu, kwaye ke, izakhiwo ezincedo ziya kuncipha. Kodwa ke ungasebenzisa urea ngokungapheliyo ixesha elide.
Kufuneka nini ukusebenzisa urea?
Wonke umntu uyazi ukuba ubuninzi bezondlo ezisemhlabeni zingathintela izityalo, kunye nesiphene. Yingakho kuyimfuneko ukondla izityalo nge-urea njengoko kuyimfuneko kunye nangakumbi. Ukutshala umyezo "kwindawo egcinwe kuyo" akunakwenzeka nakweyiphi na imeko.
Kodwa kukho iimeko ezinzima xa ukusetyenziswa okungavamile kwe-urea kuchanekile. Kufuneka ufumane isikhwama esigciniweyo ngeekristali xa uqaphela ukuba izityalo:
- Musa ukukhula, kuba phantse kwimeko efanayo nokutsala (ukuxhalabisa imbewu yezityalo zamatamatayi, ikhukhamba, isitshalo seqanda, i-zucchini).
- Amagqabi aqala ukujika, aomile okanye awele.
- I-ovary iyawa.
- Izilwanyana zafunyanwa.
- Kukho amahlumela athathaka, ahlukeneyo, amaqabunga amancinci, kukho ukuphulwa kwe-photosynthesis.
Ungayisebenzisa njani urea njengomchumisi?
Ukusetyenziswa kwe-urrea ngokutshabalalisa kumphezulu akusebenzi. Kwiintsuku ezimbalwa, isilwanyana, ekudibanisaneni nomhlaba, sinqumla kwi-gaseous state (i-ammonium carbonate) kwaye iyaphela. Yingakho i-carbamide ilungele ukungena emhlabathini okanye ubuncinci ukufa. Ukongezelela ukuthulula i-granules, i-carbamide isetyenziswe kwifom echityiweyo ukunyuswa okuthe ngqo kwiingcambu.
Ukuchumisa iziqhamo kunye neeberry kunye neenkcubeko zemifuno nge-urea ziqala entwasahlobo kwaye zihlala ixesha elipheleleyo lezityalo. Ngeli xesha i-3-4 ionyango zenziwa rhoqo. Kufuneka ukwazi malunga nepropati yerea ulungise umhlaba , ngoko ke unconywa ukuba ungeze i-lime kuso (isigamu se kilo i-urea - 0.4 kg ye-lime okanye isiko).
Elinye ikhilomitha yamitha yokutshala kwezityalo ezahlukeneyo isebenzisa isixa esahlukileyo sesibisi:
- i-strawberries, i- strawberries - urea ifakwe emhlabathini ngaphambi kokutyala izithombo, ukunkcenkceshela ngexesha lokuhluma, 5 gr nge 1 litre yamanzi iyadingeka;
- iklabishi, ipilisi, utamatisi, anyanisi, iitapile, igalikhi - 20-23 gr;
- i-zucchini / i-squash nesitshalo seqanda-10-12 gr;
- okusanhlamvu - 300 gr nge-1 egadi yomyezo;
- ukutshiza imifuno kwiinambuzane nezifo - ukuya kwi-15 gr nganye nge-10 ilitha amanzi.