Urea Urea: yesicelo

Wonke umlimi ukuzama ukuphucula umgangatho izityalo zabo, besebenzisa zonke iintlobo izichumisi. Namhlanje, aziwayo kakhulu lo carbamide (urea) equlethe imifuno organic kunye nezongezelelo nezondlo lomhlaba ngokunjalo initrogen-rich.

A incinane

urea okokuqala ngo-1773 ngu Scientist French Hillaire Rouelle, kodwa kuphela ukusukela ngo 1828 oko yaqala ukuvelisa izithako. nitrogen olusebenzayo carbamide isichumiso (urea) ngendlela esulungekileyo iqulethe ukuya kwi 46% ye-nitrogen, unyityilikiswa emanzini kwi-pH elungeleleneyo kwaye ayikho enetyhefu kwizityalo kunye nomhlaba.

release Form

Urea (carbamide) kuveliswe ngeendlela ezahlukeneyo:

• Xa uhlobo granules ezincinane ukunyibilika kancinci emhlabeni kwaye ikhusela ukusuka Ukwanda nitrogen. Kulula bhidisa ngayo nabanye isichumiso, kuquka organic.
• Ifom elide amacwecwe ezinyibilikayo isale inwebu okhethekileyo, ekhuselweyo ukupheliswa ngokukhawuleza emhlabeni, nto leyo ethintela isityalo emhlabeni kunye nitration.

Carbamide: isicelo

imifuniselo Field zibonisa ukuba ukusetyenziswa urea njenge pre-imbewu isichumiso kuvumelekile ngokugqibeleleyo zonke iintlobo kwimihlaba naphantsi kwazo zonke iintlobo zezityalo. Xa oku ukusebenza ayikho indlela kuthathelwe Ammonium Nitrate kunye ammonium sulfate, yaye ngamanye amaxesha, umzekelo, imihlaba olu-podsolic ngamanzi ezaneleyo kunye serozem onkcenkceshelwayo, inika etyebile amazambane izityalo kunye nemifuno. Isetyenziswa njengento yokugquma phezulu ukuba izityalo zasebusika entwasahlobo ekuqaleni, kwaye izityalo kumqolo kunye yemifuno imbewu ngokukhawuleza ukuthintela ukulahleka nitrogen ngumphunga le ammonia lasekwa ngo yokubola izichumisi. Kuba izityalo kwamagqabi akungeze Kucetyiswa crystalline isiqulatho lobeko biuret ukuya 0.2-0.3%.

buhle

Le isichumiso nitrogen zinezibonelelo ngaphezu kwezinye nezichumiso. Urea (carbamide) ako kakuhle iinkcubeko, yaye ingqalelo aphezulu (1% isisombululo) obulele izityalo kwaye akabi amagqabi. Xa kwanda kwelifunekayo iiseli igqabi xa molecule yonke, kwaye kananjalo zifunxwe yokubola phantsi yintshukumo urease enzyme okanye ammonia ukwenza diamino loop utshintshwano izinto nitrogen. Noko ke, agqithisile ammonia simahla kwindawo iingcambu ukucola ukuntshula kunye amatsha okuhluma, ngoko ke kufuneka ukuba ube olwamkelweyo kakhulu ekwenzeni urea emhlabeni apha ukuhlwayela okanye ngokulungelelana besasaza ngayo.

izincomo

Phambi kokuba kongezwe urea emhlabeni kucetyiswa ngocoselelo asiyixubi konke nezinye ongeziweyo okanye ngesanti. Xa zisetyenziswa ngokuchanekileyo, urea granular (carbamide) yi-nitrogen isichumiso obalaseleyo. Konke oku enkosi iipropati ezilungileyo emzimbeni kwakunye isiqulatho ophezulu nitrogen kumafa yayo. Ekubeni kunokwenzeka ukuba ukusebenzisa nayiphi na emhlabeni, yaye kunempembelelo entle ukukhula kwesityalo, imfuneko yale isichumiso jikelele ukhule ngexesha ngalinye, yaye ngenxa yoko, ukunyuka kwemveliso.