Microscopy dluab ntawm tag nrho granule (sab laug) thiab cross-section (txoj cai) ntawm Zn-enriched amoniated phosphate fertilizer. Zinc tau ntxiv ntawm 1% tus nqi coated rau NP chiv nrog ib txheej txheej uas muaj SOP lossis KMag. Credit: Soil Science Society of America Journal (2024). DOI: 10.1002/saj2.20744
Thoob plaws ntiaj teb, ntau cov av ua liaj ua teb tsis muaj cov khoom noj zinc-txawm tias cov neeg ua liaj ua teb siv cov chiv ua kom muaj txiaj ntsig zoo nrog lub caij. Qhov no txwv cov qoob loo yields thiab txo cov zaub mov zoo. Nws tau kwv yees tias kwv yees li ib feem peb ntawm cov pej xeem hauv ntiaj teb tau noj cov zaub mov uas tsis muaj zinc, uas tuaj yeem ua rau muaj mob thiab tuag thaum ntxov, nrog rau kev loj hlob thiab kev paub tsis meej.
Siv Canadian Light Source (CLS) ntawm University of Saskatchewan (USask), cov kws tshawb fawb los ntawm University of Adelaide hauv Australia tau tshawb xyuas yuav ua li cas los tsim cov chiv zinc-enriched ntau dua. HXMA beamline ntawm CLS ua rau cov kws tshawb fawb los tshuaj xyuas ntawm qib molecular dab tsi tshwm sim rau cov dej solubility ntawm zinc (nws muaj peev xwm yaj hauv dej) thaum nws ntxiv rau ammonium phosphate fertilizer.
Cov kev tshawb pom tau luam tawm nyob rau hauvSoil Science Society of America Phau ntawv Journal.
Rodrigo da Silva, los ntawm University of Adelaide hais tias "Nyob rau hauv qhov project, peb pab pawg xav tias hom zinc compound yuav yog ib qho kev kwv yees zoo ntawm cov chiv solubility," hais tias Rodrigo da Silva, los ntawm University of Adelaide.
"Txawm li cas los xij, CLS beamline tau ua rau peb nkag siab tias qhov kev ua haujlwm agronomic tsis tuaj yeem kwv yees raws li hom zinc muaj nyob hauv cov chiv granules. Xwb, pH tsav cov chiv zinc solubility thiab muaj rau cov qoob loo."
Dr. da Silva thiab cov npoj yaig pom tias thaum zinc ntxiv rau phosphate chiv, nws tsim ntau yam sib txawv zinc phosphate tebchaw. Txawm li cas los xij, nws cov solubility tsis cuam tshuam nrog kev nplua nuj ntawm cov tebchaw, tab sis rau chiv pH. Qhov no txhais tau hais tias zinc ntxiv rau ntau alkaline phosphate chiv xws li diammonium phosphate yuav muaj solubility tsawg heev thiab li no tsis tshua muaj agronomic zoo rau qoob loo uptake.
Pab pawg University of Adelaide tau pom tias txo qis pH ntawm cov chiv los ntawm kev txau cov granules nrog cov kua qaub ntxiv ua rau kom cov kua qaub thiab muaj zinc piv rau cov khoom lag luam tam sim no.
Cov kws tshawb fawb kuj tau qhia txog ib txoj hauv kev ntxiv los ua kom Zn dej solubility los ntawm kev muab cov txheej txheem txheej rau cov chiv granules, cais cov zinc los ntawm phosphate. Lawv tau pom tias muaj ntau dua ntawm zinc los ntawm cov nroj tsuag kho nrog cov txheej txheem txheej txheej chiv.
Lub Tuam Txhab Mosaic twb tau patented ob qho tib si ntawm cov thev naus laus zis tshiab no nrog rau University of Adelaide's Fertilizer Technology Research Center. Mosaic yog lub ntiaj teb ua tus tsim cov concentrated phosphate thiab potash.
"Nws yog ib qho tseem ceeb los txhim kho zinc fertilization kev coj ua, ua kom cov qoob loo ntau tshaj plaws thiab tsim cov khoom noj khoom haus ntau dua," hais tias da Silva. "Qhov kev tshawb fawb no tuaj yeem pab kev lag luam tsim cov chiv zoo dua."
Xav paub ntau ntxiv:Rodrigo C. da Silva et al, Zinc nyob rau hauv ammoniated phosphate chiv: Solid-theem speciation, solubility, thiab siv cov txheej txheej barrier los txhim kho zinc muaj,Soil Science Society of America Phau ntawv Journal(2024). DOI: 10.1002/saj2.20744
Muab los ntawm Canadian Light Source
Zaj dab neeg no yog thawj zaug luam tawm ntawm Phys.org. Sau npe yuav mus rau peb tsab ntawv xov xwm rau qhov tseeb sci-tech xov xwm tshiab.
