Hoakaka:
'Ikamu |
Nitrogen% ≥ |
Biuret% ≤ |
Ona mau% ≤ |
Ka nui o ka huna hunaΦ0.85-2.80mm) % ≥ |
Nā hopena |
46.0 |
1.0 |
0.5 |
90 |
Hiʻona:
ʻO Urea kahi honi ʻole, huahana granular;
Ua hala kēia huahana i ka palapala hoʻomaikaʻi ʻōnaehana ISO9001 a ua hāʻawi ʻia i nā huahana Kina mua loa i hoʻokuʻu ʻia mai ka nānā ʻana e ka keʻena mokuʻāina o ka maikaʻi a me ka hoʻokele loiloi
He huahana like kā kēia huahana e like me ka urea polypeptide, urea granular a me ka urea prilled.
Urea (Carbamide / Urea solution / USP Grade Carbamide) maʻalahi hiki ke hoʻoheheʻe ʻia i ka wai a hoʻohana ʻia ma ke ʻano kūleʻa kiʻekiʻe i hoʻokuʻu ʻia o ka momona nitrogen. ʻO ka hygroscopic maʻalahi i ka lewa a me ka caking. Hoʻohana ʻia i hoʻohana ʻia i nā mea momona NPK & BB fertilizers ma ke ʻano he kumuwaiwai paʻa, hiki ke uhi ʻia ka sulfur a i ʻole polymer ma ke ʻano he mea hoʻomoe hoʻokuʻu ʻia a hoʻokuʻu ʻia paha. ʻO ka noi wā lōʻihi o ka urea ʻaʻole ia e waiho i nā mea ʻino i ka lepo.
Aia i loko o Urea kahi liʻiliʻi o ka biuret i ke kaʻina granulation, ke ʻoi aku ka nui o ka biuret i 1%, ʻaʻole hiki ke hoʻohana ʻia ka urea i mea kanu a me nā mea kanu foliar. Ma muli o ke kiʻekiʻe o ka nitrogen i urea, he mea nui ia e hoʻokō i kahi pālahalaha. ʻAʻole pono e lūlū ma ke kāhea ʻana a kokoke paha i ka ʻanoʻano, ma muli o ka makaʻu o ka germination hōʻino. Hoʻomaʻemaʻe ʻo Urea i ka wai no ka noi ʻana ma ke ʻano he spray a i ʻole ma o nā ʻōnaehana wai.
He ʻāpana keʻokeʻo keʻokeʻo ʻo Urea. ʻO ia kahi mole moleola amide i piha me 46% nitrogen i ke ʻano o nā hui amine. Hoʻomaʻemae palena ʻole ʻia ʻo Urea i ka wai a kūpono no ka hoʻohana ʻana i mea mahiʻai a me nā mea ulu lāʻau a no nā noi ʻoihana e koi ana i kahi kumu nitrogen kiʻekiʻe. ʻAʻole ia he lāʻau make i nā māmela a me nā manu a he ʻano maikaʻi a palekana hoʻi e lawelawe.
ʻOi aku ma mua o 90% o ka hana ʻenehana o ka urea i koho ʻia no ka hoʻohana ʻana me he mea hoʻomomona hoʻokuʻu ʻia. Loaʻa i ka Urea ka nui o nā mea nitrogen kiʻekiʻe o nā momona nitrogenous paʻa i ka hoʻohana maʻamau. No laila, ʻo ia nā kumukūʻai halihali haʻahaʻa no kēlā me kēia anakahi o ka nutrient nitrogen.
He nui nā koʻohune lepo i loaʻa i ka enzyme urease, ka mea catalyzed ka hoʻololi ʻana o ka urea i ka amonia a i ʻole ka ammonium ion a me ka ion bicarbonate, no laila hoʻololi koke ʻia nā mea urea i ka amonium i loko o ka lepo. Ma waena o nā koʻohune lepo i ʻike ʻia e lawe i ka urease, kekahi mau koʻohune ammonia-oxidizing (AOB), e like me nā ʻano like ʻole o Nitrosomonas, hiki iā lākou ke hoʻopili i ka carbon dioxide i hoʻokuʻu ʻia e ka hopena e hana i ka biomass ma o ka Calvin Cycle, a me ka ʻohi ʻana o ka ikehu e ka oxidizing amonia iā nitrite, kahi hana i kapa ʻia ʻo nitrification. ʻO nā koʻohune Nitrite-oxidizing, ʻo ia hoʻi ʻo Nitrobacter, oxidize nitrite i nitrate, kahi mea lawe lima loa i nā lepo no ka maikaʻi ʻole o ke kumu a he kumu nui ia o ka haumia o ka wai mai ka mahiʻai. Hoʻokomo koke ʻia ʻo Ammonium a me nitrate e nā mea kanu, a ʻo ia nā kumuwaiwai nui o ka nitrogen no ka ulu ʻana o nā mea kanu. Hoʻohana ʻia ʻo Urea i nā ʻano hana kōkahu momona paʻa maha nui. Hoʻomaʻemaʻe nui ʻia ʻo Urea i ka wai a no laila, kūpono nō hoʻi ia no ka hoʻohana ʻana i nā haʻina momona penei, i nā mea kanu 'foliar feed'. No ka hoʻohana ʻana i ka mea hoʻomomona, ʻoi aku ka makemake o nā granule ma mua o nā prills ma muli o ka liʻiliʻi o ka nui o ka nui o ka liʻiliʻi o ka ʻāpana.
Hoʻolahalaha pinepine ʻia ʻo Urea ma nā helu ma waena o 40 a me 300 kg / ha akā ʻokoʻa nā helu. Loaʻa nā noi liʻiliʻi i nā nalo haʻahaʻa ma muli o ka leaching. I ke kauwela, hoʻolaha pinepine ʻia ka urea ma mua a i ʻole i ka ua e hoʻoliʻiliʻi i nā nalo ʻana mai ka volatilization (ke kaʻina kahi e nalowale ai ka nitrogen i ka lewa me he amonia gas). Kūlike ʻole ʻo Urea me nā mea hoʻomomona ʻē aʻe.
Ma muli o ke kiʻekiʻe o ka piʻi ʻana o ka nitrogen i urea, he mea nui ia e hoʻokō i kahi pālahalaha. Pono e hoʻoponopono pono ʻia nā pono noi a hoʻohana pono ʻia. ʻAʻole pono e lūlū ma ke kāhea ʻana a kokoke paha i ka ʻanoʻano, ma muli o ka makaʻu o ka germination hōʻino. Hoʻomaʻemaʻe ʻo Urea i ka wai no ka noi ʻana ma ke ʻano he spray a i ʻole ma o nā ʻōnaehana wai.
I nā hua kanu a me ka pulupulu, hoʻohana pinepine ʻia ka urea i ka manawa o ka mahi hope loa ma mua o ke kanu ʻana. I nā wahi ua nui a ma nā one one (kahi e nalowale ai ka nitrogen ma o ka leaching ʻana) a kahi e manaʻo ʻia ai ka ua i ka wā maikaʻi, hiki i ka ʻurea ke ʻaʻe a i ʻole ke kapa kiʻekiʻe i ka wā ulu. Kaulana pū ka lole top-dressing i ka nāhelehele a me nā mea ulu. I ka mahi ʻana i ke kō, ʻaʻahu ʻia ka urea ma hope o ke kanu ʻana, a hoʻopili ʻia i kēlā me kēia hua ratoon.
I nā mea kanu i hoʻoulu ʻia, hiki ke hoʻopili i ka urea i ka lepo, a i ʻole hoʻoheheʻe ʻia a waiho ʻia ma o ka wai hoʻoulu wai. E hoʻoheheʻe ʻo Urea i kāna kaupaona ponoʻī i ka wai, akā lilo ia i paʻakikī paʻakikī e hoʻoheheʻe i ka piʻi ʻana o ka hoʻonui. ʻO ka hoʻopau ʻana i ka urea i ka wai he endothermic, e hāʻule ana ka mahana o ka hopena ke hemo ʻo urea.
Ma ke ʻano he alakaʻi kūpono, i ka hoʻomākaukau ʻana i nā hopena urea no ka momona (kaomi ʻana i nā laina wai), hoʻopau ʻaʻole ʻoi aku ma mua o 3 g urea no 1 L wai.
I nā lāʻau foliar, hoʻohana pinepine ʻia nā urea concentrations o 0.5% - 2.0% i nā mea kanu kanu lāʻau. Hōʻike pinepine ʻia nā papa haʻahaʻa-biuret o urea.
Hoʻomoʻa ʻo Urea i ka wai mai ka lewa a no laila mālama pinepine ʻia i loko o nā ʻeke pani / sila ʻia ma nā pale a i ʻole inā mālama ʻia i ka nui, ma lalo o ka uhi me kahi kapa pāpaʻi. E like me ka nui o nā mea momona paʻa, paipai ʻia kahi e mālama ai i kahi anuanu, maloʻo, ʻāpana maikaʻi.
ʻO ka overdose a i ʻole ke hoʻokau ʻana iā Urea ma kahi o ka hua he mea weliweli.
ʻOihana kemika.
ʻO Urea kahi mea maka no ka hana ʻana i ʻelua mau papa nui o nā mea: resine urea-formaldehyde a me ka urea-melamine-formaldehyde i hoʻohana ʻia i ka plywood kai.
Pūʻolo: 50KG PP + PE / ʻeke, ʻeke jumbo a i ʻole nā koi a nā mea kūʻai