A na -esi na urea na formaldehyde emepụta methylene urea (MU) site n'ọnọdụ ụfọdụ. Ọ bụrụ na ejiri urea mee ihe n'oge mmeghachi omume nke urea na formaldehyde, a ga-emepụta fatịlaịza ngwa ngwa urea formaldehyde.

Dabere na solubility dị iche iche nke fatịlaịza nitrogen na mmiri, enwere ike kewaa nitrogen n'ime mmiri nwere ike ịgbaze mmiri (WN), mmiri na -anaghị agbaze mmiri (WIN), mmiri na -agbaze mmiri (HWN), na mmiri ọkụ na -anaghị agbaze nitrogen (HWIN). Mmiri ahụ pụtara mmiri 25 ± 2 and, mmiri ọkụ pụtara mmiri 100 ± 2 ℃. A na -egosi akara ngosipụta nwayọ nwayọ site na ọnụ ahịa ndepụta ọrụ (AI). AI = (WIN-HWIN)/merie*100%. Ụkpụrụ AI dị iche iche na -ekpebi nwayọ ntọhapụ nke methylene urea nitrogen. Mkpụrụ ndụ dị mkpụmkpụ na-agbaze ma dị mfe idozi site na micro-organism na ala, n'ihi ya, ogologo ụdọ anaghị agbaze, ọ na-achọkwa oge ka micro-organism dozie ya.

Usoro nrụpụta MU anyị na -anabata teknụzụ mepere emepe, nke nwere ụzọ usoro dị mfe yana njirimara njikwa dị mfe. Anyị nwere ike mepụta granular na ntụ ntụ MU, nke nwere mmiri oyi na -enweghị mmiri nitrogen sitere na 20% ruo 27.5%, ndepụta ọrụ sitere na 40% ruo 65% yana ngụkọta nitrogen sitere na 38% ruo 40%.

 Usoro mmeghachi omume na -eji njirimara urea okpomọkụ nke ihe ngwọta yana ewepụta okpomọkụ na mmeghachi omume zuru oke, nke na -eri obere ume. Ngwurugwu granular mepụtara nwere ezigbo isi ike na obere uzuzu.

MU n'ụdị granular nwere nha nha site na 1.0mm ruo 3.0mm, ntụ ntụ sitere na ntupu 20 ruo ntupu 150.

MU bụ ihe dị mkpa na -ewepụta nitrogen ngwa ngwa. Nitrogen nke MU na-ewepụta ma na-agbaze nwayọ n'okpuru mmiri na obere ihe dị n'ime ala. MU dị ọcha na -acha ọcha ma enwere ike ịme ya ka ọ bụrụ ntụ ma ọ bụ granular. A na -eji ọtụtụ n'ime ha agwakọta ma ọ bụ gwakọta n'ime fatịlaịza N, NP, NK ma ọ bụ NPK. A na -enweta arụmọrụ ka ukwuu mgbe agwakọtara MU na isi mmalite nitrogen ndị ọzọ na -agbaze. Site na ịgwakọta ọnụ ma ọ bụ oke dị iche iche nke MU, enwere ike nweta nyocha NPK dị iche na pasent nke Slow Release Nitrogen.

URUA

Nitrogen dị na MU nwere ike hapụ nwayọ, nke na -ezere ịkụ osisi mgbọrọgwụ ma ọ bụ akwụkwọ ya, oke osisi na -eto, na -apụkwa fatịlaịza. MU nwere nitrogen na -ewepụta nwayọ nwayọ nwayọ, nke na -ezute ọtụtụ ngwa, gụnyere ịkọ ahịhịa, nnukwu acre, mkpụrụ osisi, ifuru, ahịhịa na ahịhịa ndị ọzọ. Yabụ, MU anyị etinyere ya nke ukwuu yana ntụkwasị obi.

l Belata ọnwụ nitrogen maka osisi

l Dịkwuo arụmọrụ fertilizing

l Mwepụta nitrogen na -adịte aka

l Belata ọnụ ahịa ndị ọrụ

l Belata ihe egwu nke ọkụ osisi

l Akwa otu maka ịgwakọta