{"id":154552,"date":"2020-07-13T10:28:35","date_gmt":"2020-07-13T10:28:35","guid":{"rendered":"https:\/\/blog.hannaservice.eu\/direktno-ec-merenje-u-zemlji-kada-god-vam-je-potrebno-hi98331\/"},"modified":"2022-10-10T08:56:06","modified_gmt":"2022-10-10T08:56:06","slug":"direktno-ec-merenje-u-zemlji-kada-god-vam-je-potrebno-hi98331","status":"publish","type":"post","link":"https:\/\/blog.hannaservice.eu\/sr\/direktno-ec-merenje-u-zemlji-kada-god-vam-je-potrebno-hi98331\/","title":{"rendered":"Direktno EC merenje u zemlji kada god Vam je potrebno: HI98331"},"content":{"rendered":"\t\t
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Precizno odre\u0111ivanje EC zemlji\u0161ta nikad nije bilo lak\u0161e.<\/h2>\n

Mera\u010d\u00a0HI98331 za direktno merenje u zemlji<\/a>\u00a0je pogodan alat za kori\u0161\u0107enje ne samo u zemlji\u0161tu, ve\u0107 i u medijumima kao \u0161to je kamena vuna. Ovaj vodi\u010d \u0107e Vam objasniti kako da interpretirate rezultate. Na taj na\u010din \u017eelimo da otklonimo sve zabune ukoliko ste ih imali usled prethodnih mdfdnjy EC (elektri\u010dne provodljivosti) zemlji\u0161ta drugim metodama.<\/p>\n

Sposobnost testiranja elektri\u010dne provodljivosti<\/strong><\/h2>\n

Kada koristite\u00a0HI98331 EC Mera\u010d za direktno merenje u zemlji\u0161tu<\/a>\u00a0va\u017eno je imati na umu da c\u0301e sadr\u017eaj vlage u tlu \/ medijumu zna\u010dajno uticati na izmerenu vrednost elektri\u010dne provodljivosti. Da bi se osiguralo ta\u010dno merenje, preporu\u010duje se o\u010ditavanje kada je vlaga tla blizu kapaciteta polja. Kao op\u0161te smernice, ovo optimalno vreme merenja je otprilike 15 minuta po zavr\u0161etku navodnjavanja. Zemlji\u0161te \/ medijum c\u0301e ostati na odgovarajuc\u0301em nivou vlage skoro sat vremena; zavisno od medijuma i koli\u010dine drena\u017ee koju pru\u017ea. Period od 15 minuta omoguc\u0301ava vreme da se voda iscedi iz vec\u0301ih pora (prostora) u medijumu i ne\u0161to vazduha koji u\u0111e, \u0161to izjedna\u010dava sadr\u017eaj vlage za stalno o\u010ditavanje<\/p>\n

\n

Napomena: Preporu\u010duje se da se preduzmu 3 merenja i uzme njihov prosek. EC nije homogena kroz ceo medijum. Va\u017eno je obratiti pa\u017enju i na dubinu koju merite. Odr\u017eavajte je konstantnom tokom svih merenja.<\/h3>\n

<\/p><\/blockquote>\n

Razli\u010dita zemlja, me\u0161avine tla i medijumi za rast bez zemlje zadr\u017eavaju razli\u010dite koli\u010dine vlage. Kamena vuna, tresetna mahovina i kokosovi orasi zadr\u017eavaju vi\u0161e vode. U me\u0111uvremenu, zemlja koja se me\u0161a sa vi\u0161e borove kore, perlita i peska dr\u017ei manje vode. Koli\u010dina vode koju medij zadr\u017eava u kapacitetu polja c\u0301e uticati na vrednost EC ako se meri HI98331. \u0160to je vec\u0301a razlika u kapacitetu zadr\u017eavanja vode, to je te\u017ee uporediti direktna EC merenja vi\u0161e medijuma. Na primer, upore\u0111ivanje merenja od kocke kamene vune do pe\u0161\u010dane ilovice iz polja.<\/p>\n

Direktna merenja EC u zemlji\u0161tu tako\u0111e c\u0301e se razlikovati od ekstrakta zasic\u0301enih podloga, razbla\u017eivanja 1: 2 (me\u0161avina) i rezultata ispitivanja ispitivanja. Postoje\u00a0kompleksne formule<\/a>\u00a0za pretvaranje rezultata izme\u0111u ovih metoda ispitivanja, ali odnos je linearan samo ako se testira ta\u010dno ista zemlja ili medijum bez zemlje.<\/p>\n

Naponema:\u00a0HI983314 meri u mS\/cm. dS \/ m, mS \/ cm, mmhos \/ cm, i EC se upotrebljavaju naizmeni\u010dno kada se odnose na merenja saliniteta podloge.
\n1 decisiemens na metar (dS\/m) = 1 milisiemens na cm (mS\/cm) = 1 EC = 1 mmhos\/cm<\/h3>\n

Mnogi uzgajiva\u010di tra\u017ee listu tolerancija biljnog saliniteta kako bi uporedili njihove rezultate. Uzgajiva\u010di bi ih mogli koristiti kao smernicu sa sledec\u0301im ograni\u010denjima: na merenja EC zemlji\u0161ta uti\u010du sadr\u017eaj vlage, sastav zemlji\u0161ta i metoda ispitivanja \u2026 brojevi na ovim listama verovatno se nec\u0301e podudarati s Va\u0161im rezultatima bez tuma\u010denja. Na primer, merenja u ovoj\u00a0listi tolerancije saliniteta<\/a>\u00a0uzetoj metodom ekstrakta zasic\u0301ene podloge i testirano je zemlji\u0161te.\u00a0Fini pesak<\/a>\u00a0iz polja. Ta merenja c\u0301e biti uporediva samo sa direktnim merenjima EC zemlji\u0161ta koja su uzeta sa HI98331 ako merite isti ili sli\u010dan tip zemlji\u0161ta (pe\u0161\u010dana ilova\u010da) i koristite formulu konverzije ili tabelu upore\u0111ivanja metoda ispitivanja.<\/p>\n

Rezultati razli\u010ditih metoda merenja mogu se brzo i grubo uporediti koristec\u0301i sledec\u0301u tabelu sve dok su uzorci medijumaa sli\u010dni u sastavu. Direktna merenja sa HI98331 najbli\u017ea su rezultatima 1: 2 na ovoj tabeli i \u010desto su ne\u0161to ni\u017ea.<\/p>\n\n\n\n\n\n\n\n\n\n
Ovaj grafikon koji je pripremio dr Douglas Cok na UMass-u upore\u0111uje rezultate EC iz tri metode ispitivanja.<\/strong><\/caption>\n
1:2<\/strong><\/td>\nSME<\/strong><\/td>\nIzlivanje<\/strong><\/td>\nIndikacija<\/strong><\/td>\n<\/tr>\n
0 do 0.03<\/td>\n0 do 0.8<\/td>\n0 do 1.0<\/td>\nVeoma nisko<\/td>\n<\/tr>\n
0.3 do 0.8<\/td>\n0.8 do 2.0<\/td>\n1.0 do 2.6<\/td>\nnisko<\/td>\n<\/tr>\n
0.8 do 1.3<\/td>\n2.0 do 3.5<\/td>\n2.6 do 4.6<\/td>\nNormalno<\/td>\n<\/tr>\n
1.3 do 1.8<\/td>\n3.5 do 5.0<\/td>\n4.6 do 6.5<\/td>\nVisoko<\/td>\n<\/tr>\n
1.8 do 2.3<\/td>\n5.0 do 6.0<\/td>\n6.6 do 7.8<\/td>\nVeoma visoko<\/td>\n<\/tr>\n
>2.3<\/td>\n>6.0<\/td>\n>7.8<\/td>\nEkstremno<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Na primer, o\u010ditavanje 5,0 mS \/ cm kori\u0161c\u0301enjem MSP (zasic\u0301enog medijuma ekstrakta) metode za merenje fine pe\u0161\u010dane ilova\u010de bilo bi otprilike povezano sa o\u010ditanjem od 1,8 mS \/ cm pomoc\u0301u HI98331 za merenje istog ilisli\u010dnog sastava tla.<\/a><\/p>\n

Dakle, \u0161ta ovo uop\u0161te zna\u010di?<\/strong><\/h2>\n

Najbolje je da zaboravite da upore\u0111ujete rezultate sa listama i tabelama. Mo\u017eda c\u0301e biti potrebno mnogo vremena ili nije moguc\u0301e pronac\u0301i podatke o va\u0161em specifi\u010dnom sastavu tla ili medijumu bez zemlje. Va\u0161a pore\u0111enja i konverzije c\u0301e biti grube pre nego \u0161to se uka\u017eu u nekvantifikovane varijable, poput genetike i ekolo\u0161kih razlika. Odgovor je jednostavno\u00a0izradite svoj set podataka!<\/strong><\/p>\n

Prikupljanjem nedeljnih podataka uzgajiva\u010di sa HI98331 mogu povezati vizuelne znakove zdravlja biljaka sa direktnim podacima merenja EC. Jednom kada se ovi podaci steknu, salinitet se mo\u017ee odr\u017eavati bez potrebe za oslanjanjem na vizuelne signale biljaka. Jedino HI98331 merenja su Vam potrebna.<\/p>\n

Kada je biljka vidljivo pod stresom od visokog saliniteta, \u0161teta je na\u010dinjena i biljka nec\u0301e moc\u0301i da dostigne svoj puni potencijal na vreme za berbu ili prodaju. Kori\u0161tenjem HI98331 uzgajiva\u010di mogu odr\u017eavati zdravu zonu korena i ispraviti probleme sa slalinitetom pre nego \u0161to se o\u0161teti koren biljke, imuni sistem i na kraju desi zastoj rasta.<\/p>\n

HI98331 je posebno koristan za stakleni\u010dke i plasteni\u010dke uzgajiva\u010de. Medijumi u kojima u tim objektima \u010desto imaju obilnu drena\u017eu \u0161to omoguc\u0301ava proizvo\u0111a\u010du da brzo smanji salinitet po potrebi. To se posti\u017ee ispiranjem sa malo slane vode ili znatno ni\u017eom koncentracijom \u0111ubriva.<\/p>\n

Pomoc\u0301u alata kao \u0161to\u00a0suHI98331 EC mera\u010d za direktno merenje u zemlji<\/a>iHI99121pH mera\u010d za direktno merenje u zemlji<\/a>, uzgajiva\u010di mogu biti u toku sa kriti\u010dnim pH i EC vrednostima i preduprede svaku \u0161tetu pre nastanka.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Precizno odre\u0111ivanje EC zemlji\u0161ta nikad nije bilo lak\u0161e. Mera\u010d\u00a0HI98331 za direktno merenje u zemlji\u00a0je pogodan […]<\/p>\n","protected":false},"author":17,"featured_media":152325,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[348],"tags":[],"class_list":["post-154552","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-poljoprivreda"],"yoast_head":"\nDirektno EC merenje u zemlji kada god Vam je potrebno: HI98331 - Hanna Instruments Srbja<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.hannaservice.eu\/sr\/direktno-ec-merenje-u-zemlji-kada-god-vam-je-potrebno-hi98331\/\" \/>\n<meta property=\"og:locale\" content=\"sr_RS\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Direktno EC merenje u zemlji kada god Vam je potrebno: HI98331 - Hanna Instruments Srbja\" \/>\n<meta property=\"og:description\" content=\"Precizno odre\u0111ivanje EC zemlji\u0161ta nikad nije bilo lak\u0161e. 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