Njengesichumiso esisetyenziswa ngokuqhelekileyo, iurea iye yanenkxalabo malunga nokukhula kwayo.Okwangoku, i-urea kwimarike ihlukaniswe ngamaqhekeza amakhulu kunye namancinci amancinci.Ngokuqhelekileyo, i-urea eneqhekeza elikhulu kune-2mm ibizwa ngokuba yi-granular urea enkulu.Umahluko kwisayizi ye-particle ngenxa yokwahlukana kwenkqubo ye-granulation kunye nezixhobo emva kokuveliswa kwe-urea kumzi-mveliso.Uthini umahluko phakathi kwegranular urea enkulu kunye negranular urea encinci?
Okokuqala, ukufana phakathi kwe-granular enkulu kunye nencinci ye-granular urea kukuba isithako sabo esisebenzayo yi-molecule ye-urea ene-soluble yamanzi kunye ne-nitrogen content ye-46%.Ukusuka kwimbono yefiziksi, umahluko kuphela bubungakanani bamasuntswana.I-urea ene-grained enkulu inothuli oluphantsi, amandla aphezulu acinezelayo, i-fluidity enhle, inokuthuthwa ngobuninzi, akulula ukuyiqhekeza kunye ne-agglomerate, kwaye ifanelekile ukuchumisa ngoomatshini.
Okwesibini, ngokwembono yokuchumisa, ummandla ongaphezulu wamasuntswana e-urea mkhulu, umphezulu wokudibana namanzi nomhlaba mkhulu emva kokufakwa kwesicelo, kwaye ukunyibilika kunye nesantya sokukhulula sikhawuleza.Ukunyibilika kunye nesantya sokukhululwa kwesuntswana le-urea enkulu emhlabeni licotha kancinane.Ngokubanzi, kukho umahluko omncinci ekusebenzeni kwesichumisi phakathi kwezi zimbini.
Lo mahluko ubonakaliswa kwindlela yokusetyenziswa.Umzekelo, kwinkqubo yokubekwa phezulu, isiphumo sesichumiso se-granular urea encinci sikhawuleza kancinci kuneso segranular urea enkulu.Ukususela kumbono wokulahlekelwa, ukulahlekelwa kwe-granular urea enkulu kuncinci kune-granular urea encinci, kwaye umxholo we-diurea kwi-granular urea enkulu iphantsi, enenzuzo kwizityalo.
Kwelinye icala, ekufunxeni nasekusetyenzisweni kwezityalo, iurea yinitrogen yemolekyuli, ethi ifunxeke ngokuthe ngqo zizityalo ngomlinganiselo omncinci, kwaye inokufunxwa ngobuninzi obukhulu emva kokuguqulwa kwe-ammonium nitrogen emhlabeni.Ke ngoko, nokuba ingakanani na i-urea, i-topdressing ineentsuku ezininzi ngaphambili kune-ammonium bicarbonate.Ukongezelela, ubukhulu be-particle ye-granular urea enkulu ifana ne-diammonium phosphate, ngoko ke i-granular urea enkulu inokuxutywa kunye ne-diammonium phosphate njengesichumiso esisisiseko, kwaye kungcono ukuba ungasebenzisi i-urea enkulu ye-granular yokugqoka okuphezulu.
Izinga lokuchithwa kwe-granular urea enkulu licotha kancinane, elilungele isichumiso esisisiseko, kungekhona ukugquma phezulu kunye nokugungxulwa kwesichumiso.Ubungakanani bayo besuntswana buhambelana ne-diammonium phosphate kwaye inokusetyenziswa njengesixhobo sokuxuba izichumisi ezixubeneyo.Kufuneka kuqatshelwe apha ukuba i-urea enkulu ye-granular ayikwazi ukuxutywa ne-ammonium nitrate, i-nitrate ye-sodium, i-ammonium bicarbonate kunye nezinye izichumisi ze-hygroscopic.
Ngovavanyo lwesichumiso se-urea enkulu yegranular kunye ne-urea encinci yegranular kumqhaphu, isiphumo semveliso ye-urea enkulu yegranular kumqhaphu ibonisa ukuba iimpawu zoqoqosho, isivuno kunye nexabiso lemveliso ye-urea enkulu yegranular ingcono kune-urea encinci yegranular, enokukhuthaza ukuvuza. ukukhula okuzinzileyo komqhaphu kunye nokuthintela ukuguga kwangaphambili komqhaphu kunciphisa izinga lokuchithwa kwe-cotton buds.
Ixesha lokuposa: Jul-20-2023