Urea Urea: palapala noi

Kela mala ho'āʻo nei e hoʻoikaika i ka pono o ko lākou mau hua, ka hoʻohana 'ana me ka dukima fertilizers. I keia la, i ka loa, he pono ole o ka carbamide (urea) i loaʻa ke aloha nō hoʻi a me ka lepo nutrient mea hoʻonui like hoʻi me naikokene-waiwai.

A wahi moʻolelo

First urea loaa i ka 1773 ma Farani nä känaka 'epekema Hillaire Rouelle, akā, wale mai 1828 ka mea, hoomaka ae la e paka synthetically. Haʻi'ōlelo naikokene mea hoʻomomona carbamide (urea) i loko o ke gula palapala kekahi mau mai i ka 46% o ka naikokene, mea hoʻoheheʻe i loko o ka wai ma ka pH 'O ke kaulike, a mea iʻawahia i ka mea kanu a me ka lepo.

hookuu palapala

Urea (carbamide) ua hua mai i nā 'ano apau loa.

• Ma ke ano o ka poe liilii, granules hoike mai lohi i loko o ka lepo a me ka malama ia ia mai saturation o ka naikokene. He oluolu e hookahuli ai i ka mea a me nā mea hoʻomomona, me ke aloha.
• Ka lōʻihi ano o wailana o na papa io kapa komo iā ia me ka kūikawāʻili lahilahi, palekana mai kokololio noho male 'ana i loko o ka lepo, a ua ālai' i kaʻai i waena, mai ka lepo a me ka nitration.

Carbamide: palapala noi

Field ho okolohua hōʻike ana i ka hoʻohana 'ana o ka urea like me ka mālama'-lulu mea hoʻomomona ana pono ma luna o nā mea a pau ano o soils , a ma lalo o nāʻano o nā ulu. A pau keia hana ana mea i emi iki mahope o na kumu o ka'amoniuma nitrate a me ka 'amoniuma sulufahate, a me kekahi manawa, no ka laʻana, ho'āno-podsolic soils me ka lawa ona mau a me ka irrigated serozem, 'oi aku ka waiwai ʻuala kekahi mea kanu a me kaʻai ulu. Hoʻohana 'ia me ka luna ua kahikoia a nani no ka hooilo ulu i loko o kakahiaka pūnāwai, a me ka lalani hua a me kaʻai koke seeding e pale aku naikokene emi ma ke omoāea o ka ammonia i hanaʻia i decomposition o fertilizers. No ka foliar mea kanu paipai mea pōaka Lolina biuret maʻiʻo i 0.2-0.3%.

pono

Kēia naikokene mea hoʻomomona mea pono ma nā fertilizers. Urea (carbamide) ua maikaʻi ke kemu hana 'ike loea, a ma kiʻekiʻe lehulehu (1% pāʻoihana) pepehi kanu, a' aʻole i puhi i nā lau. A hiki i ka? Aiey ka paka e ka lau keena like a pau lātoma, a ua hiki ke kemu no hoi ma ka decomposition ma lalo o ka hana o ka'ūhū urease paha ammonia, e hana i kekahi diamino loop loli 'nitrogenous waiwai. Eia naʻe, he oi o noa ammonia i loko o ke kumu ciia 'aʻole hoʻi germination a me ka omaka ae, no laila, e pono e e loa ka naauao ma ka hana ana i ka urea i ka lepo i lulu ole kōā kaulike mahele ana ia.

koi

Ma mua o waho aʻeo o urea i ka lepo loa waiho i hui pu ia me nā mea hoʻonui a me ka maloo one. I ka hoʻohana pono, granular urea (carbamide) mea he maikaʻi naikokene mea hoʻomomona. A pau ia mea i ke aloha i ka mea maikai physical waiwai e like me ka maʻiʻo kiʻekiʻe o ka naikokene i loko o kona haku mele 'ana. No ka mea, ua hiki ke hana ma kekahi aina, a me ka mea, i ka maikaʻi ia ma luna o kekahi mea kanu ka ulu, o ka pono no keia ao mea hoʻomomona ulu me kela a me keia manawa, a me ka hopena, kona? Iecaianoaaiiuo, piʻi pū.