He aha ka ʻokoʻa ma waena o ka urea granular nui a me ka liʻiliʻi?

Ma ke ʻano he mea hoʻohana maʻamau, ua hopohopo ka urea i kona ulu ʻana. I kēia manawa, ua māhele ʻia ka urea ma ka mākeke i nā ʻāpana nui a me nā ʻāpana liʻiliʻi. ʻO ka ʻōlelo maʻamau, ʻo ka urea me kahi ʻāpana ʻāpana i ʻoi aku ma mua o 2mm ua kapa ʻia ʻo urea granular nui. ʻO ka ʻokoʻa o ka nui o ka ʻāpana ma muli o ka ʻokoʻa o ke kaʻina hana granulation a me nā mea hana ma hope o ka hana ʻana o ka urea i ka hale hana. He aha ka ʻokoʻa ma waena o ka urea granular nui a me ka urea granular liʻiliʻi?

ʻO ka mea mua, ʻo nā mea like ma waena o ka nui a me ka liʻiliʻi granular urea ʻo kā lākou mea hana he mole mole urea wikiwiki wikiwiki me ka 46% nitrogen. Mai ka manaʻo physics, ʻo ka ʻokoʻa wale nō ka nui o nā ʻāpana. ʻO ka nui-grained urea he haʻahaʻa lepo haʻahaʻa, ikaika compressive kiʻekiʻe, ka wai maikaʻi, hiki ke lawe ʻia i ka nui, ʻaʻole maʻalahi e wāwahi a agglomerate, a kūpono no ka hoʻomoʻa ʻana i ka mīkini.

ʻO ka lua, mai ka hiʻohiʻona o ka fertilization, ʻoi aku ka nui o ka ʻili o nā ʻāpana urea liʻiliʻi, ʻoi aku ka nui o ka pilina me ka wai a me ka lepo ma hope o ka noi ʻana, a ʻoi aku ka wikiwiki o ka wehe ʻana a me ka hoʻokuʻu ʻana. ʻOi aku ka mālie o ka hemo a me ka hoʻokuʻu ʻana o ka urea nui i loko o ka lepo. Ma keʻano laulā, he liʻiliʻi ka ʻokoʻa o ka maikaʻi o ka fertilizer ma waena o nā mea ʻelua.

Hōʻike ʻia kēia ʻokoʻa ma ke ʻano o ka noi. No ka laʻana, i ke kaʻina hana o ka topdressing, ʻoi aku ka wikiwiki o ka hopena o ka fertilizer o ka urea granular liʻiliʻi ma mua o ka urea granular nui. Mai ka hiʻohiʻona o ka poho, ʻoi aku ka liʻiliʻi o ka nalowale o ka urea granular nui ma mua o ka urea granular liʻiliʻi, a ʻoi aku ka haʻahaʻa o ka diurea i loko o ka urea granular nui, kahi mea e pono ai nā mea kanu.

Ma ka ʻaoʻao ʻē aʻe, no ka absorption a me ka hoʻohana ʻana i nā mea kanu, ʻo ka urea he molecular nitrogen, kahi i hoʻopili pono ʻia e nā mea kanu i kahi liʻiliʻi, a hiki ke hoʻopili wale ʻia i ka nui ma hope o ka hoʻololi ʻana i ka nitrogen ammonium i ka lepo. No laila, me ka nānā ʻole i ka nui o ka urea, ʻo ka topdressing he mau lā ma mua o ka ammonium bicarbonate. Eia kekahi, ʻo ka nui o ka nui o ka urea granular nui e like me ka diammonium phosphate, no laila hiki ke hui pū ʻia ka urea granular nui me ka diammonium phosphate ma ke ʻano he fertilizer kumu, a ʻoi aku ka maikaʻi ʻaʻole e hoʻohana i ka urea granular nui no ka lole luna.

ʻOi aku ka lohi o ka hoʻoheheʻe ʻana o ka urea granular nui, kūpono ia no ka mea hoʻomomona kumu, ʻaʻole no ka hoʻoulu ʻana a me ka hoʻoulu ʻana. Ua like kona nui me ka diammonium phosphate a hiki ke hoʻohana ʻia ma ke ʻano he mea no nā mea hoʻohuihui hui. Pono e hoʻomaopopo ʻia ma aneʻi ʻaʻole hiki ke hui pū ʻia ka urea granular nui me ka ammonium nitrate, sodium nitrate, ammonium bicarbonate a me nā mea kanu hygroscopic ʻē aʻe.

Ma o ka ho'āʻoʻana i ka momona o ka urea nui a me ka urea liʻiliʻi liʻiliʻi maʻamau ma luna o ka pulupulu,ʻo ka hopena o ka hanaʻana o ka urea granular nui ma ka pulupulu e hōʻike ana i nāʻano waiwai, ka hua a me ka waiwai o ka urea granular nui iʻoi aku ka maikaʻi ma mua o ka urea granular liʻiliʻi, hiki ke hoʻoikaika i ka ʻO ka ulu paʻa o ka pulupulu a pale ʻO ka ʻelemakule mua o ka pulupulu e hōʻemi ana i ka hoʻoheheʻe ʻana o nā ʻōpuʻu pulupulu.