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Kvalitet rada mašine za formiranje mini gredica

dc.creatorPonjičan, Ondrej
dc.creatorBajkin, Anđelko
dc.creatorVasin, Jovica
dc.date.accessioned2021-04-26T18:21:40Z
dc.date.available2021-04-26T18:21:40Z
dc.date.issued2008
dc.identifier.issn0354-9496
dc.identifier.urihttp://fiver.ifvcns.rs/handle/123456789/561
dc.description.abstractMachine for minibed forming was aggregated with tractor engine nominal power 139 kW. The working width was 305 cm (4 minibeds). Work quality was evaluated by physical property of soil, before and after minibeds forming, and depends of depth. Samples were taken by standard ISO 10381-6. The structural composition was measured at field conditions by sifting complet (method of Savinov). The structure coefficient at the depth of 10-25 cm were 0.36-0.07, and after minibeds forming 1.03-0.51. Soil moisture and volumetric bulk density were examined by the standard method, based on usage of Kopecky's physical rolles. The volumetric bulk density at the depth of 10-20 cm was 1.39 g.cm-3, and after mini beds forming 1.16 g.cm-3. The penetrometric resistance was measured by a penetrometet Finland Irvine Ltd. The penetrometric resistance of soil at the depth of 14-25 cm before minibeds forming were 5.31- 9.58 daN.cm-2, and at the minibeds 2.78-4.99 daN.cm-2. During the evolution physical property of soil statistical significant difference at 5% level was found in layer 10-25 cm.en
dc.description.abstractMašina za formiranje mini gredica bila je agregatirana sa traktorom snage 139 kW. Radni zahvat mašine iznosio je 305 cm (4 mini gredice). Kvalitet rada mašine ocenjen je merenjem fizičkih osobina zemlišta, pre i nakon formiranja mini gredica, kao i sa promenom dubine. Uzimanje uzoraka zemljišta izvedeno je po standardu ISO 10381-6. Strukturni sastav meren je u poljskim uslovima pomoću serije sita (metod Savinov-a). Koeficijent strukturnosti zemljišta na dubini 10-25 cm imao je vrednosti 0,36-0,07, a nakon prolaska mašine za formiranje mini gredica 1,03-0,51. Momentalna vlažnost zemljišta i specifična zapreminska masa određena je prema standardnom metodu korišćenjem cilindara po Kopeckom. Specifična zapreminska masa zemljišta na dubini 10-20 cm iznosila je 1,39 g.cm-3 a nakon formiranja mini gredica 1,16 g.cm-3. Pomoću elektronskog penetrometra izmerena je sabijenost zemljišta. Sabijenost zemljišta na dubini 14-25 cm pre formiranja mini gredica bila je 5,31-9,58 daN.cm-2, a na mini gredicama, 2,78-4,99 daN.cm-2. Prilikom ocene fizičkih osobina zemljišta statistički značajne razlike na pragu značajnosti od 5% pojavile su se u sloju 10-25 cm.sr
dc.publisherNaučno društvo za pogonske mašine, traktore i održavanje, Novi Sad i Univerzitet u Novom Sadu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Novi Sad
dc.relationinfo:eu-repo/grantAgreement/MESTD/MPN2006-2010/20147/RS//
dc.rightsopenAccess
dc.sourceTraktori i pogonske mašine
dc.subjectminibed-former machineen
dc.subjectstructure coefficienten
dc.subjectvolumetric bulk densityen
dc.subjectpenetrometric resistance of soilen
dc.subjectmašina za formiranje gredicasr
dc.subjectkoeficijent strukturnostisr
dc.subjectzapreminska specifična masa zemljištasr
dc.subjectotpor zemljištasr
dc.titleWork quality of machine for the minibeds formationen
dc.titleKvalitet rada mašine za formiranje mini gredicasr
dc.typearticle
dc.rights.licenseARR
dc.citation.epage47
dc.citation.issue2
dc.citation.other13(2): 41-47
dc.citation.spage41
dc.citation.volume13
dc.identifier.fulltexthttp://fiver.ifvcns.rs/bitstream/id/1416/558.pdf
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_fiver_561
dc.type.versionpublishedVersion


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