Yog lawm, qhov ntawd yog phosphite, tsis yog phosphate. Thaum nws muaj tshuaj zoo ib yam li cov siv dav thiab tseem ceeb phosphate - qhov 'P' hauv NPK chiv mnemonic - phosphite (PO3) yog 'daim ntawv txo' ntawm phosphate (PO4). Ib qho pa oxygen tsawg dua ua rau txhua qhov sib txawv: cov nroj tsuag tsis tuaj yeem nkag mus rau hauv phosphorus hauv nws daim ntawv phosphite.
Qee tus neeg cog qoob loo yuav twb paub txog phosphite lub luag haujlwm hauv cov haujlwm tiv thaiv kabmob, qhov uas nws tau ua yeeb yam zoo kawg rau cov kabmob los ntawm oomycetes xws li downy mildew thiab blight lig. Hauv ntau qhov kev sim siab, cov kws tshawb nrhiav thiab agronomists tau pom tias phosphite, thaum thov ua ke nrog kev txo cov tshuaj fungicide, nws muaj peev xwm muab cov qoob loo qos yaj ywm muaj kev tiv thaiv zoo ib yam li kev tiv thaiv blight lig raws li kev txhaj tshuaj fungicide.
Qhov no tau ua pov thawj muaj txiaj ntsig nyob rau hauv xyoo tas los no, nyob rau hauv lub siab ntawm puas tau-tighter cog qoob loo tiv thaiv cov kev cai lij choj uas tau txwv txoj kev siv 'mus-rau' fungicide ua xws li mancozeb thiab chlorothalonil.
Nws yog ib qho tseem ceeb kom nco ntsoov tias qhov no yog 'kev tiv thaiv kabmob', es tsis yog tswj kabmob. Phosphites yuav tsis tau xa tawm 100 feem pua tswj, los yog yuav tsis ua tawm tsam 'muaj tseeb' kab mob fungal zoo li Septoria hauv nplej. Thiab cov kws tshawb fawb tseem tab tom tawm tswv yim qhov kev txiav txim siab tiag tiag: nws tau xav 'hloov mus' qee yam tseem ceeb hauv cov noob cog (piv txwv li cov qos yaj ywm) uas yog cov khoom siv hauv kev tiv thaiv, tab sis lwm qhov kev xav tau ntau dhau.
Dab tsi kuj tseem ceeb heev - thiab qhov twg qee cov neeg cog qoob loo tsis tuaj yeem tsis teev - yog tias tsis yog txhua tus phosphites raug tsim (lossis tsawg kawg sau npe) sib npaug. Txawm tias lawv yuav yog cov tshuaj sib txawv, ib tus neeg cog qoob loo uas xav ua ib daim qauv ntawm Kev Tswj Cov qoob loo los ntawm kev qhia phosphite mus rau qhov kev pabcuam fungicide yuav tsum siv cov khoom lag luam uas muaj cov ntawv sau npe tshuaj tua kab. OMEX® Cell Fais Phorcephite, piv txwv li, muaj tag nrho Asmeskas kev sau npe ua tus kab mob fungic rau kev tswj hwm ntawm downy mildew, Pythium, Phytopthora thiab lwm yam kab mob, hla ib thaj tsam ntawm cov qoob loo suav nrog cov qos yaj ywm - qhov twg ib qho kev nyiam ntxiv yog nws xoom-hnub xaj luv.
Tab sis OMEX® tseem muaj lwm daim ntawv teev npe phosphite - ib qho khoom hu ua 4pHajCov. Qhov no raug tso npe ua cov chiv - vim tias qhov no yog qhov twg phosphite pib tau txais kev nthuav tiag tiag.
Nov yog qhov uas peb pom phosphite hauv nws txoj cai ob npaug. Ua ntawv thov ntawm cov koob tshuaj ntau, nws muab cov fungicidal inhibition peb tau tsuas yog tham. Tab sis thaum thov rau qib qis, hauv qab uas muaj peev xwm muab cov kev ua fungicidal, nws tseem tuaj yeem ua raws li cov txiaj ntsig biostimulant.
Biostimulants tau txais nce mloog thiab kem ntiv taw nyob rau hauv xyoo tas los no. Lawv yog ib chav kawm tshiab ntawm kev siv tshuaj tiv thaiv qoob loo uas tsis yooj yim raug cais, tsis muaj tshuaj tua kab thiab tshuaj tua kab lossis tsis muaj tshuaj lom. Tab sis thaum thov rau cov qoob loo, lawv tuaj yeem cuam tshuam kev loj hlob thiab kev nthuav dav hauv ntau txoj hauv kev, thoob plaws tag nrho lub neej kev ua qoob loo ntawm cov qoob loo.
Piv txwv li, qee cov biostimulants cuam tshuam cov noob kev tawg, lwm tus 'prime' tiv thaiv kab mob lossis kev teb kev ntxhov siab. Lawv tuaj yeem pab txhawb kev ua kom rov zoo los ntawm cov teeb meem tsis txaus ntseeg, xws li lub siab tshaj plaws ntawm cov dej noo lossis qhov kub thiab txias, txhim kho cov khoom noj khoom haus thiab dej kom tau zoo, thiab txhim kho qhov zoo ntawm cov khoom cog - cov xim lossis cov ntsiab lus qab zib, piv txwv. Qee tus txawm txhawb kev sib raug zoo ntawm tsob ntoo cag thiab cov av microbes, hauv qhov paub ua 'rhizosphere'.
Yog li, dab tsi biostimulant khoom puas phosphite muaj cov qos yaj ywm cog qoob loo? Zoo, qhov txawv txav tshaj plaws yog nyob hauv txoj kev loj hlob hauv paus, qhov twg kev tshawb fawb pom tau tias phosphite ua rau muaj caj ces teb hauv cov nroj tsuag. Qhov no ua rau cov nroj tsuag rov qab ua tiav nws cov kev ua ub no enzyme, txhawb kev nthuav dav hauv paus.
Cov kev tshawb fawb pom tau tias hauv paus kev txhim kho muaj txog 50 feem pua hauv qee cov qoob loo Qhov ntawd tsis yog rau cov qos yaj ywm, txawm hais tias qhov twg peb tau ua peb tus kheej tsom iav txiav iav, peb tau pom tias muaj txiaj ntsig zoo los ntawm kev siv tshuaj kho cov ntoo ntawm lub tuber pib.
Tuber cov lej nce ntxiv 12.5 feem pua. Nws zoo ib yam nrog txoj kev xav tias lub qos cog nrog lub hauv paus loj dua tuaj yeem txhawb nqa ntau lub taub hau, thaum lub sij hawm sib xyaw nrog hauv paus biomass kuj tuaj yeem taw tes - kev tshawb fawb ntxiv tuaj yeem lees paub - yuav muaj txiaj ntsig los ntawm kev txhim kho hauv cov dej thiab cov khoom noj khoom haus ntxiv.
Kuj tseem muaj pov thawj - Asmeskas Phau Ntawv Xov Xwm Kev Tshawb Fawb Kev Tshawb Fawb tau los ntawm kev sim cov qos yaj ywm hauv Argentine - tias kev siv phosphite rau noob cov noob tuaj yeem tsis tsuas txo lub sijhawm ntawm cog thiab kev rov tshwm sim, tab sis tseem txhawb kev loj hlob thaum ntxov: lwm cov nyhuv biostimulant hauv kev nqis tes ua.
Yuav phosphite tig tawm los txawm tias muaj ntau tus neeg tshaj lij? Kuj muaj: nws yog thaj chaw nrawm, thiab tseem muaj ntau cov lus nug tsis teb txog phosphite qhov tseeb hom kev ua. Kuj tseem muaj cov kev cai lij choj: qhov tsis muaj kev lees paub rau biostimulants inevitably tso lawv nyob rau hauv ib yam dab tsi ntawm thaj chaw grey, txawm hais tias Asmeskas cov lus pom zoo rau cov kev cai tau suav.
Dab tsi yog qhov tseeb yog tias txawm tias ob txoj kev siv no, cov neeg cog qoob loo nws muaj qhov laj thawj tsim nyog rau kev siv phosphite ua qhov tsis txaus txuas hauv lawv 2021 agronomic armory.
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