Kev tshawb fawb qhia tau tias hla lub tank txoj cai- sib tov tus khub tuaj yeem txo kev tswj cov nyom nyom thiab nyom los ntawm 25% mus rau 90%.
Thaum cov nroj tsuag tawg los ntawm koj cov tshuaj tua kab mob, nws yooj yim los liam cov khoom, tus nqi lossis daim ntawv thov sijhawm. Txawm li cas los xij, cov nroj tsuag - tswj cov kws tshaj lij Greg Dahl thiab Joe Ikley hais tias cov neeg ua txhaum tiag tiag yuav yog lwm yam tag nrho: cov dej hauv lub tank thiab cov adjuvant - lossis tsis muaj - sib xyaw rau hauv nws.
Dahl, tus thawj coj tshawb fawb so haujlwm ntawm WinField United, hais tias cov ntaub ntawv nyuaj qhia zaj dab neeg zoo tshaj plaws. Tom qab tshuaj xyuas ntau txhiab qhov kev sim hauv tsev kawm ntawv, nws pom
uas hla cov tshuaj tua kab mob uas yuav tsum tau ua yog kev caw rau cov nroj tsuag - tswj tsis tau.
"Peb pom 30% mus rau 90% txo qis hauv kev tswj cov nroj tsuag thaum cov tshuaj tiv thaiv tawm mus," Dahl hais. "Nws yog ib tug zoo nkauj heev sting."
Tab sis tsuas yog siv ib qho adjuvant tsis txaus. Cov kev sim tau pom tias siv cov chav kawm tsis raug ntawm adjuvant hauv lub tank tuaj yeem txo qhov kev ua tau zoo txog li 50%. Txawm tias kev daws teeb meem rau "zoo txaus" cov khoom tshaj li tus nqi them tuaj yeem ua rau 25% poob rau hauv kev ua tau zoo. Lus Cim Dahl: Hauv ntiaj teb kev tswj cov nroj tsuag, "ze txaus" feem ntau tsis yog.
Solutions Ua Haujlwm
Cov dej tawv hauv lub tank txau feem ntau yog pab rau kev tswj cov nroj tsuag tsis zoo. Thaum cov tshuaj tsuag dej ntim nrog calcium thiab magnesium cations, uas tuaj yeem tsim ib puag ncig rau kev tsis muaj zog -acid herbicides xws li glyphosate. Cov zaub mov no lub cev khi rau cov tshuaj tua kab mob, tsim cov khoom uas cov nroj tsuag tsis tuaj yeem nqus tau.
"Nroj tsuag tsis noj pob zeb," hais tias Ikley, tus kws tshaj lij nroj tsuag ntawm North Dakota State University Extension.
Txhawm rau tiv thaiv qhov no, nws thiab Dahl pom zoo kom siv ammonium sulfate (AMS) ua dej txias. Dahl txoj kev tshawb fawb qhia tias nyob rau hauv cov ntaub ntawv ntawm hardness, ntxiv yam tsawg kawg nkaus 8.5 lbs. ntawm AMS ib 100 nkas loos yog tsim nyog los ua kom tag nrho neutralize cov dej thiab kho cov tshuaj tua kab mob.
Txawm li cas los xij, kev sib ntaus sib tua tsis yog hauv lub tank xwb; nws yog feem ntau ntawm cov nplooj ntoo. Ikley taw qhia tias qee cov nroj tsuag, zoo li velvetleaf, tiag tiag zais lawv tus kheej calcium crystals rau hauv lawv cov nplooj nplooj.
"Muaj ob peb hom nroj tsuag tiag tiag xav tau AMS ntau dua vim tias cov muaju ntawm nplooj ntawv," Ikley piav qhia. "Peb yuav tsum suav rau qhov kev sib cuam tshuam ntawm cov nroj tsuag, tsis yog hauv dej."
Thaum "tag nrho-hauv-ib" kev sib xyaw ua ke muab kev yooj yim, Ikley thiab Dahl hais kom ceev faj. Txhawm rau ntaus tus nqi tshwj xeeb lossis haum rau ntau cov khoom xyaw rau hauv lub hub, cov tuam txhab tsim khoom qee zaum cuam tshuam rau cov dej - cov khoom siv txias. Kev sim hauv tsev kawm ntawv tsis tu ncua qhia tau hais tias tsawg heev "kev yooj yim" cov khoom tuaj yeem ua tau zoo tshaj qhov kub - kev sib xyaw ua ke ntawm AMS ntxiv rau cov khoom siv tsis zoo, Ikley thiab Dahl hais.
Conditioners tsis yog txhua tus tsim muaj vaj huam sib luag
Dahl thiab Ikley ob leeg nco ntsoov tias cov dej txias thiab "tag nrho-hauv-ib" adjuvants sib txawv hauv kev ua tau zoo. Kom tau txais txhua yam rau hauv ib lub nkas loos thiab ntaus tus nqi taw tes, lawv hais tias cov tuam txhab qee zaum cuam tshuam thiab tuaj luv luv ntawm ib qho ntawm cov haujlwm, feem ntau yog ib qho rau cov dej txias.
Ikley hais tias kev sim hauv tsev kawm ntawv tsuas yog qhia qee tus neeg mob uas ua tau zoo tshaj qhov kev sib xyaw ua ke ntawm AMS ntxiv rau cov tshuaj tsis muaj zog.
"Ib ob peb ntawm cov dej txias ua tau zoo," nws hais. "Tus so tsis ua raws li AMS ntxiv rau surfactant."
Ua ntej lawv xaiv los yog hloov cov adjuvant siv, Dahl thiab Ikley qhia cov neeg ua liaj ua teb kom sim lawv cov dej, thiab hais kom lub chaw soj nstuam qhia cov txiaj ntsig rau lawv hauv ib feem ntawm ib lab.
"Qee lub chaw soj nstuam tshaj tawm hauv cov nplej, thiab tom qab ntawd koj yuav tsum ua lej ntxiv," Dahl hais.
Ikley ntxiv cov lus qhia tswv yim: ib txwm khiav dej rau ob peb feeb ua ntej coj tus qauv los xyuas kom meej tias koj tsis kuaj qhov seem seem ntawm cov kab.
Thaum kawg, adjuvants yog qhov muaj txiaj ntsig kev nyab xeeb rau kev ua haujlwm ntawm cov tshuaj tua kab thiab kev tswj cov nroj tsuag. Raws li Dahl hais tias, "Koj tuaj yeem nce cov tshuaj tua kab kom txog thaum koj tsis tuaj yeem ntxiv lawm. Thaum koj xav tau kev pab, cov adjuvants tuaj yeem pab."
