Usebenzisa njani urea?

Njengoko i-urea BAI isisichumiso se-nitrogen se-organic, ayinakungena ngqo kwaye isetyenziswe zizityalo emva kokuba zibekwe kumhlaba we-DU yomhlaba. Inokufunxwa kwaye isetyenziswe zizityalo emva kokubola kwayo ibe yi-ammonium bicarbonate phantsi kwesenzo seDAO seentsholongwane zomhlaba. Izinga lokuguqulwa kwe-urea emhlabeni lihambelana nobushushu, ukufuma kunye nobume bomhlaba.

Ngokubanzi, entwasahlobo nasekwindla, ukubola kufikelela kwincopho malunga neveki enye, kwaye ehlotyeni kuhlala malunga neentsuku ezintathu. Ke ngoko, xa urea isetyenziselwa ukunxiba ngaphezulu, kufanele kuthathelwe ingqalelo ukufaka urea kwiintsuku ezininzi kwangaphambili.

I-Urea yeyomanyolo ongathathi hlangothi, osebenza kuzo zonke iintlobo zezityalo kunye nomhlaba, unokusetyenziselwa isichumiso esisisiseko kunye nokunxiba ngaphezulu, kodwa hayi ukutyala isichumiso kunye nentsimi yerayisi ngesichumisi. Ngenxa yokuba i-urea iqulethe umxholo we-nitrogen ophezulu kunye nenani elincinci le-biuret, iya kuchaphazela imbewu yokuhluma kunye nokukhula kweengcambu.

Ukuba i-urea kufuneka isetyenziswe njengesichumiso sembewu, kufuneka ulawule ngokungqongqo isixa sesichumiso kwaye uphephe ukunxibelelana nembewu. Kwisisichumisi esisisiseko esingama-225 ~ 300 kg kwihektare nganye nesichumiso esingaphezulu esingama-90 ~ 200 kg kwihektare nganye, umhlaba kufuneka ufakwe nzulu ukuthintela ukulahleka kwenitrogen. I-Urea yeyona ilungele ukusetyenziswa kwesichumiso segqabi, ayiqulathanga macala, kulula ukufunxwa ngamagqabi esityalo, isiphumo sesichumiso siyakhawuleza, iziqhamo zokutshiza umthi weziqhamo yi-0.5% ~ 1.0%, kusasa okanye ngokuhlwa kufane ukutshiza kumagqabi esityalo. , kwixesha lokukhula okanye kwinqanaba eliphakathi nelisekupheleni, qho ngeentsuku ezi-7 ~ 10 kanye, fafaza amaxesha ama-2 ~ ama-3. I-Urea inokuchithwa nge-potassium dihydrogen phosphate, i-ammonium phosphate kunye ne-insecticide, i-fungicides, ukutshiza kunye, inokudlala indima yokuchumisa, inambuzane, ukukhusela izifo.


Ixesha Post: Jul-02-2020