Hōʻike ka noiʻi polysulphate mai Dr. Carl Rosen i ka piʻi ʻana o ka huina a me nā mea kūʻai kūʻai ke hoʻohālikelike ʻia me ka hana maʻamau o ka mea ulu.
ʻOiai ʻo kāna kuleana koʻikoʻi i ka hoʻokō ʻana i nā mea kanu maikaʻi loa, ʻaʻole i loaʻa mau ka sulfur i ka nānā ʻana e pono ai, e uhi pinepine ʻia e nā hua kaulana a kaulana hoʻi e hoʻonui ai i nā meaʻai, nitrogen, phosphorus, a me ka potassium. No nā makahiki, ʻaʻole pilikia nui ka nele o ka sulfur no ka hapa nui o nā mea kanu ʻuala. I ka wā ma mua, ʻoi aku ka nui o nā mea kanu mineralized a me nā hoʻokuʻu sulfur kiʻekiʻe ma mua o ka lawa no ka hoʻokō ʻana i nā pono o nā mea kanu. I loko o nā makahiki he 30 i hala iho nei, me ka hoʻokomo ʻia ʻana o ka Clean Air Act, ua hoʻemi nui nā hoʻokuʻu sulfur i ka loaʻa ʻana o ka sulfur atmospheric ma ʻAmelika ʻĀkau. ʻO ka ʻoiaʻiʻo, ma ka ʻaoʻao o N, P, a me K, ʻo ka sulfur kahi meaʻai hale mana, a he kumu palena ʻole i ka hua a me ka maikaʻi. No laila, ma hea kahi e waiho ai i ka mea kanu o kēia lā?
Hiki i ka Sulfur ke hoʻoikaika nui i ka maikaʻi a me ka nui o ka tuber. ʻOiai ke koi haʻahaʻa o ka ʻuala i ka sulfur i hoʻohālikelike ʻia me ka ʻaila aila a i ʻole brassicas, ua ulu ko mākou ʻike no ka momona o ka lepo, a me ko mākou ʻike no ke kumu e hiki ai i ka sulfur ke hoʻopili pololei iā ROI.
He mea nui ka Sulfur no ka ʻuala?
ʻO ka Sulfur kahi mea kūkulu hale pono no nā protein. Pono ʻia no ka synthesis amino acid a pono no ka maikaʻi o ka hoʻohana ʻana i ka nitrogen kiʻekiʻe, hiki i ka sulfur ke hoʻopōʻino i ka ulu ʻana o ka tuber, ka hoʻoulu ʻana i ka carbohydrate, ka pale ʻana i ka maʻi, a me ka hana chlorophyll. Hōʻike ka noiʻi e pili nui ana ka umekaumaha kikoʻī, ka mea maloʻo, ke kō a me ka mākiko, a me ka nui o ka tuber e ka sulfur.
Ma muli o ka nele o ka sulfur, i kēlā me kēia manawa, hiki ke hoʻemi ʻia nā hua, pono ka hoʻolako mau ʻana o ka sulfur-mai ka puka ʻana a hiki i ke oʻo ʻana-no ka mea kanu olakino a maikaʻi. He mea nui i nā mea kanu ke komo i ka sulfur e pono ai lākou, i ka wā e pono ai lākou.
ʻO ka Polysulphate (0-0-14-19.2S-12.2Ca-3.6Mg) i loaʻa mai ka polyhalite (he mineral kūlohelohe i ʻeli ʻia e ICL wale nō). ʻO kēia mea hoʻomomona multi-nutrient he kumu haʻahaʻa-chloride sulfate-based o ka potassium soluble, magnesium a me ka calcium.
ʻO ke ʻano o ka hoʻokuʻu lōʻihi o ka Polysulphate, ʻo ia ka mea e loaʻa i nā ʻuala nā meaʻai pono ʻehā (S 19.2%, K 14%, Mg 3.6%, Ca 12.2%) i loko o kēlā me kēia granule i ka wā o ka koi kiʻekiʻe, mai ka ulu ulu a hiki i ka ulu ʻana. ʻo ka oʻo ʻana o ka ʻuala—he kuleana koʻikoʻi ma ka hoʻohua a me ka maikaʻi.
Hoʻopili ka calcium i ka fertilizer i ka kemika lepo a me nā ʻano o ka ʻuala ʻuala. Ma nā ʻano ʻano lepo a i ʻole nā ʻōnaehana hoʻoulu ʻana i ka irrigated kahi e paʻakikī ai ka maikaʻi o ka wai, hiki i ka hoʻohui ʻana o ka calcium i ka lepo ke kōkua i ka hoʻoponopono ʻana i nā paʻakai i hōʻiliʻili ʻia. Me ka haʻahaʻa haʻahaʻa o ka chloride, haʻahaʻa salinity index, neutral pH, a ʻaʻohe hopena liming, ua hōʻike ka noiʻi i nā hopena ma nā ʻano ʻano lepo like ʻole, e hana ana i ka Polysulphate i mea hoʻoponopono meaʻai meaʻai maʻalahi. Hoʻohana ʻia e like me ka mea kanu mua, i ke kanu ʻana a i ka wā puʻu, hiki ke hui pū ʻia ka Polysulphate me SOP a i ʻole MOP no kahi kumu hoʻohui o ka hoʻokuʻu wikiwiki K. Paipai mākou e kamaʻilio me kāu agronomist a i ʻole e kūkākūkā me kekahi o kā mākou hui e aʻo hou e pili ana i ka noi. uku a me nā alakaʻi hoʻomaʻamaʻa maikaʻi loa.
Ma ke ʻano he ʻāpana sulfur hoʻomau e hōʻemi i nā mea hoʻokomo a hoʻonui i ka ROI, ʻo Polysulphate kahi koho hou no nā mea ulu o kēia lā. Haʻaheo ʻo ICL i ka hāʻawi ʻana i ka Polysulphate i kahi ʻoihana ulu o nā mea kūʻai aku a me nā mea kūʻai aku ma ke ʻano he ʻāpana o kā lākou kōpili meaʻai mea kanu holomua (ʻoi aku: icl-sf.com/us-en ).
ʻEkolu ʻano nui o ka sulfur fertilizer.
- Sulphate-sulfur Loaʻa i nā fertilizers ka sulfur i hui pū ʻia me nā meaʻai ʻē aʻe, e like me ka nitrogen a i ʻole ka potassium. Loaʻa ka fertilizer i ka ulu ʻana i nā mea kanu a hemo koke nā mea kanu sulphate-sulphur. ʻO ka mea kanu sulphate-sulfur maʻamau i kūʻai ʻia ma Saskatchewan he granular ammonium sulphate (20-0-0-24, 21-0-0-24, 19-2-0-22).
- Ammonium sulphate Hiki ke hoʻohui ʻia me nā mea kanu granular ʻē aʻe, akā pono e mālama ʻia e hōʻoia i ke ʻano kino o ka ammonium sulphate e ʻae i ka hui ʻana e noho like.
- Sulphate potasiuma (0-0-50-18 a me nā mea hana ʻē aʻe) loaʻa a kūpono i nā mea kanu legume e like me ka alfalfa, kahi e pono ai ka potassium a me ka sulfur akā ʻaʻole ka nitrogen.
Aia nā mea momona ʻē aʻe loaʻa i kekahi sulphate-sulfur, i loko o ka hui ʻana a i ʻole i loko o kahi huahana i hana ʻia.
ʻAʻole kūpono koke ka sulfur elemental no nā ʻāina i nele i ka sulfur, akā he ʻāpana pono paha ia o kahi hoʻolālā hoʻokele waiwai sulfur no ka lepo haʻahaʻa i loaʻa i nā mea kanu.
- Sulfur kumumea fertilizers (0-0-0-90 to 99) he granular, me 90 a 99 pākēneka sulfur ma ke ʻano kumu. ʻAʻole hiki ke hoʻohana pololei ʻia ka sulfur elemental e nā mea kanu. Pono e hoʻololi mua ʻia i sulphate-sulphur (SO4-2 -S) e nā microorganism lepo.
ʻO nā mea kanu i loaʻa i ka sulfur e like me ka thiosulphate, e like me ka wai ammonium thiosulphate (12-0-0-26) a me 15-0-0-20 pono e oxidized e nā microbes i loko o ka lepo i ke ʻano sulphate. Eia nō naʻe, hiki ke hoʻohana ʻia ka oxidation a hiki ke hoʻohana ʻia nā uku o ka ammonium thiosulphate i ka makahiki e koi ʻia ai ka sulphate-sulphur. Hiki ke hoʻohana ʻia ka fertilizer ma mua, i ka wā a i ʻole ma hope o ke kanu ʻana. Eia nō naʻe, ke hoʻohana ʻia ma ke ʻano he foliar a dribble band i kahi mea kanu, hiki i ka hoʻopili pololei ʻana me nā lau mea kanu ke kumu e ʻā ai ka lau. E hahai i nā ʻōlelo a nā mea hana no ka hui ʻana.
Kaha holoholona Hiki ke hāʻawi i ka sulfur me nā mea kanu mea kanu ʻē aʻe, akā ʻokoʻa ke ʻano o ka sulfur a me ke koena me nā meaʻai ʻē aʻe a pono e hoʻoholo ʻia ma o ka nānā ʻana i ka manure me ka hoʻāʻo ʻana i ka lepo e hoʻoholo ai i nā pono pili. No ka laʻana, he haʻahaʻa ko loko o kekahi mau manure puaʻa wai o ka sulfur i loaʻa e pili ana i ka nitrogen, a ua ʻike ʻia nā pane o nā mea kanu i nā mea kanu sulfur hou ma nā ʻāina manured ma nā hoʻāʻo ʻana ma ke kula kahi i loaʻa ai nā hemahema sulfur.
ʻAʻole maikaʻi loa ka hoʻohana ʻana i nā fertilizers sulfur i haʻahaʻa i ka pH o ka lepo. Hana ʻia kēia hana no ka hoʻāʻo ʻana e hoʻonui i ka hao, zinc a i ʻole nā meaʻai ʻē aʻe i loaʻa i kekahi mau mea kanu horticulture. Hiki ke hoʻonui i ka nui o nā paʻakai soluble (sulphates) i ka lepo e hoʻonui ai i nā pae paʻakai. Hiki i ka hoʻonui ʻana i ka paʻakai o ka lepo ke hōʻemi i nā hua o nā mea kanu maʻalahi.