Njengesichumiso esisetyenziswa ngokuqhelekileyo, iurea ixhalabile malunga nophuhliso lwayo. Okwangoku, i-urea kwimarike ihlukaniswe ngamaqhekeza amakhulu kunye namancinci amancinci. Ngokuqhelekileyo, i-urea eneqhekeza elikhulu kune-2mm ibizwa ngokuba yi-urea enkulu yegranular. 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 urea emhlabeni sicotha 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 bamasuntswana buhambelana ne-diammonium phosphate kwaye inokusetyenziswa njengesixhobo sokuxuba izichumisi ezihlanganisiweyo. 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