Njengomanyolo osetshenziswa kakhulu, i-urea ibilokhu ikhathazekile ngokukhula kwayo.Njengamanje, i-urea emakethe ihlukaniswe yaba yizinhlayiya ezinkulu nezinhlayiya ezincane.Ngokuvamile, i-urea enobubanzi bezinhlayiyana ezingaphezu kuka-2mm ibizwa ngokuthi i-granular urea enkulu.Umehluko ngosayizi wezinhlayiyana ubangelwa umehluko wenqubo ye-granulation kanye nemishini ngemva kokukhiqizwa kwe-urea efektri.Uyini umehluko phakathi kwe-urea enkulu ye-granular kanye ne-urea encane ye-granular?
Okokuqala, ukufana phakathi kwe-urea enkulu nencane eyimbudumbudu ukuthi isithako sawo esisebenzayo i-molecule ye-urea encibilika ngokushesha enokuqukethwe kwenitrogen engama-46%.Ngokombono we-physics, umehluko kuphela ubukhulu bezinhlayiyana.I-urea enezinhlamvu ezinkulu inothuli oluncane, amandla aphezulu okucindezela, uketshezi oluhle, ingathuthwa ngobuningi, akulula ukuphuka futhi ihlanganise, futhi ifanele ukuvundiswa ngomshini.
Okwesibili, ngokombono wokuvundisa, indawo engaphezulu yezinhlayiya ezincane ze-urea inkulu, indawo yokuthintana namanzi nenhlabathi inkulu ngemva kokufakwa, futhi ukuchithwa kanye nesivinini sokukhipha siyashesha.Izinga lokuncibilika kanye nokukhululwa kwezinhlayiyana ze-urea enkulu enhlabathini lihamba kancane.Ngokuvamile, kunomehluko omncane ekusebenzeni kukamanyolo phakathi kwalokhu kokubili.
Lo mehluko ubonakala endleleni yokufaka isicelo.Isibonelo, enqubweni yokugqoka okuphezulu, umphumela womanyolo we-urea encane ye-granular uyashesha kancane kunalowo we-urea enkulu ye-granular.Ngokombono wokulahlekelwa, ukulahlekelwa kwe-urea enkulu ye-granular kungaphansi kwe-urea encane ye-granular, futhi okuqukethwe kwe-diurea ku-urea enkulu ye-granular kuphansi, okuzuzisa izitshalo.
Ngakolunye uhlangothi, ukumuncwa kanye nokusetshenziswa kwezitshalo, i-urea iyi-nitrogen yamangqamuzana, emuncwa ngokuqondile izitshalo ngenani elincane, futhi ingamuncwa ngobuningi kuphela ngemva kokuguqulwa ibe i-ammonium nitrogen enhlabathini.Ngakho-ke, kungakhathalekile ukuthi ingakanani i-urea, ukugqoka okuphezulu kusenezinsuku ezimbalwa ngaphambi kwe-ammonium bicarbonate.Ukwengeza, ubukhulu bezinhlayiya ze-urea enkulu ye-granular bufana ne-diammonium phosphate, ngakho-ke i-urea enkulu ye-granular ingaxutshwa ne-diammonium phosphate njengomanyolo oyisisekelo, futhi kungcono ukuthi ungasebenzisi i-urea enkulu ye-granular ekugqokeni okuphezulu.
Izinga lokuncibilika le-urea enkulu eyimbudumbudu lihamba kancane, elifanele umanyolo oyisisekelo, hhayi ukuvundiswa kwe-topdressing kanye ne-flushing.Ubukhulu bezinhlayiyana zayo buhambisana ne-diammonium phosphate futhi ingasetshenziswa njengento yokwenza umanyolo oxubile.Kumele kuqashelwe lapha ukuthi i-urea enkulu ye-granular ayikwazi ukuxutshwa ne-ammonium nitrate, i-sodium nitrate, i-ammonium bicarbonate namanye ama-fertilizer we-hygroscopic.
Ngokuhlolwa kukamanyolo we-urea enkulu eyimbudumbudu kanye ne-urea encane evamile eyimbudumbudu ukotini, umphumela wokukhiqiza we-granular urea enkulu ukotini ubonisa ukuthi izici zomnotho, isivuno kanye nenani lomkhiqizo we-urea enkulu eyimbudumbudu zingcono kune-urea encane eyimbudumbudu, engakhuthaza ukwakheka kwe-granular urea. ukukhula okuzinzile kukakotini nokuvimbela ukuguga ngaphambi kwesikhathi ukotini kunciphisa izinga lokuchithwa kwama-cotton buds.
Isikhathi sokuthumela: Jul-20-2023