Njengamanje, kunzima ukucabanga ukutshala izitshalo zensimu, izitshalo nezimbali ngaphandle kwemanyolo. I-Carbamide (urea) - i-composite ephilayo ene-nitrogen ekubunjweni kwayo, i-granule emhlophe, emhlophe noma ephuzi kancane. Muva nje, umanyolo ungathengwa ngendlela yamathebulethi, ngenxa yengubo ehlala isikhathi eside, lapho ingena emhlabathini, iyancibilika kancane kancane, okuqeda i-nitration ngokweqile yesitshalo nenhlabathi. I-Urea yi-nitrogen fertilizer eningi kakhulu, uma ixubene nomhlabathi, iguqulwa ngaphansi kwethonya lezincane ezincane zenhlabathi zibe yi-ammonium carbonate.
Ngokukhula nokuthuthukiswa okuvamile kwezitshalo, i-nitrogen ibaluleke kakhulu, ngoba ihlobene ngokuqondile nokwakhiwa kwama-molecule futhi iyingxenye yemaprotheni yemifino. Ukukhuthazwa okubangelwa ukwanda kwezithelo kwezitshalo kubangela ukuthi kudingekile ukondla i-carbamide ukuthola isivuno esiphezulu ezindaweni ezincane.
Indlela yokusebenzisa urea
Emoyeni, i-ammonium carbonate iyancipha ngokushesha, ngakho ukusetshenziswa okungenasisekelo kwe-urea akusebenzi. Ochwepheshe bezolimo abanolwazi, ephendula umbuzo wokuthi ungasebenzisa kanjani i-urea, unikeza impendulo engavamile: Umanyolo kufanele usetshenziswe ezimweni zenhlabathi evikelwe. I-nitrojeni ekufakweni kwesicelo kufanele ifakwe ngokushesha emhlabathini ukuze ivimbele ukulahlekelwa kwe-ammonia egazini.
Izindlela zokwethulwa kwe-urea
Kubalulekile ukuba abatshali bezinsizi bazi ukuthi i-carbamide yesicelo ifunwa engadini. Umanyolo uwonke wonke, ungasetshenziselwa ukugqoka okuphezulu kwazo zonke izitshalo ezinenkathi ende yokukhula. Ngaphambi kokutshala izitshalo zemifino nezitshalo, ama-granules athuliswa ngqo enhlabathini: 5 - 12 g yomanyolo per 1 mg. Ukugqoka okuphezulu kwezitshalo ezikhulayo 20 - 30 g we-carbamide ihlanjululwe ngamalitha ayi-10 amanzi. Ngaphansi komuthi wokukhiqiza i-carbamide, imiqhele ihanjiswa emhlabathini ngokugcwele. Cishe u-200 g we-urea asetshenziselwa ngaphansi kwe-apula, nama-gramu angu-120 we-cherry ne-plum.
Okubalulekile: i-carbamide yenza i-acidifies inhlabathi, ngakho-ke, ukuze unciphise i-asidi, i-limestone inconywa: 800 g we-limestone yomhlabathi nge-1000 g we-urea.
Ukugqoka i-Foliar nge-carbamide
Ngezibonakaliso zendlala yezitshalo ze-nitrogen, kanti uma kwenzeka ukhipha izithelo namajikijolo, yenza ukugqoka okuphezulu kwe-foliar ngokuphamba nge-carbamide kusuka kumapulisi engadini ekhethekile. Ngaphambi kwe-ammonium nitrate, esetshenziselwa izinhloso ezifanayo, urea inenzuzo enkulu - itshisa amacembe amancane. Imifino ephuma ngaphandle kwe-carbamide ngesikhathi sokukhula yenziwa ngesilinganiso sama-3 amalitha esisombululo sokusebenza ngamamitha angu-100. Isixazululo sokusebenza semifino silungiswa ngale ndlela: 50 - 60 g we-carbamide ngamabhakede ayishumi-litre amanzi. Izitshalo nezitshalo zeberry, ikhambi lokusebenza lilungiswe ngesilinganiso se-20-30 g ibhakede ngalinye lamanzi.
Urea njengendlela yokuvikela izitshalo
I-Carbamide isetshenziswa njengendlela ephumelelayo yokulawula izinambuzane. Ekuqaleni kwezinsuku zasentwasahlobo ezishisayo ngaphambi kokuqala ukuvuvukala
Ukuvikela izitshalo kusuka esikhaleni, indawo eluhlaza kanye nezinye izifo ezithathelwanayo, ukupuniza kwenziwa esikhathini sokuqala sokuwa amahlamvu, ekwindla. Izithelo zezihlahla ezithela izithelo kanye nemibhuloho ehlanjululwayo kusetshenzwa, kanye namahlamvu awile. Isixazululo silungele ukufana nokubhujiswa kwezinambuzane eziyingozi.
Ukusetshenziswa kahle kwe-urea kuzokuvumela ukuba uthole isivuno esikhulu!