ISPITIVANJE PNEUMATSKIH SIJAĆICA PRIMJENOM  ISO STANDARDA 7256/1

Kamenčak, Ivan

master's thesis

ISPITIVANJE PNEUMATSKIH SIJAĆICA PRIMJENOM ISO STANDARDA 7256/1

Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechical Sciences Osijek, 2021. urn:nbn:hr:151:541424

Kamenčak, Ivan

Josip Juraj Strossmayer University of Osijek
Faculty of Agrobiotechnical Sciences Osijek
Department of Agricultural Engineering and Renewable Energy Resources

Cite this document

APA 6th Edition

Kamenčak, I. (2021). ISPITIVANJE PNEUMATSKIH SIJAĆICA PRIMJENOM ISO STANDARDA 7256/1 (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek. Retrieved from https://urn.nsk.hr/urn:nbn:hr:151:541424

MLA 8th Edition

Kamenčak, Ivan. "ISPITIVANJE PNEUMATSKIH SIJAĆICA PRIMJENOM ISO STANDARDA 7256/1." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, 2021. https://urn.nsk.hr/urn:nbn:hr:151:541424

Chicago 17th Edition

Harvard

Kamenčak, I. (2021). 'ISPITIVANJE PNEUMATSKIH SIJAĆICA PRIMJENOM ISO STANDARDA 7256/1', Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, accessed 25 January 2025, https://urn.nsk.hr/urn:nbn:hr:151:541424

Vancouver

Kamenčak I. ISPITIVANJE PNEUMATSKIH SIJAĆICA PRIMJENOM ISO STANDARDA 7256/1 [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek; 2021 [cited 2025 January 25] Available at: https://urn.nsk.hr/urn:nbn:hr:151:541424

IEEE

I. Kamenčak, "ISPITIVANJE PNEUMATSKIH SIJAĆICA PRIMJENOM ISO STANDARDA 7256/1", Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, Osijek, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:151:541424

Cite this item: https://urn.nsk.hr/urn:nbn:hr:151:541424

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Metadata

Title	ISPITIVANJE PNEUMATSKIH SIJAĆICA PRIMJENOM ISO STANDARDA 7256/1
Title (english)	TESTING OF PNEUMATIC SOWING MACHINES USING ISO STANDARD 7256/1
Author	Ivan Kamenčak
Mentor	Đuro Banaj (mentor)
Committee member	Bojan Stipešević (predsjednik povjerenstva)
Committee member	Vjekoslav Tadić (član povjerenstva)
Granter	Josip Juraj Strossmayer University of Osijek Faculty of Agrobiotechnical Sciences Osijek (Department of Agricultural Engineering and Renewable Energy Resources) Osijek
Defense date and country	2021-07-19, Croatia
Scientific / art field, discipline and subdiscipline	BIOTECHNICAL SCIENCES Agronomy Agricultural Engineering and Technology
Abstract	U radu su prikazani rezultati kvalitete sjetve pri simulaciji na ispitnom stolu u Praktikumu za poljoprivrednu tehniku i obnovljive izvore energije na Fakultetu agrobiotehničkih znanosti Osijek. Utvrđivanje kvalitete rada sijačice prikazano je pomoću koeficijenata kvalitete sjetve (ISO standard 7256/1 i 7256/2) odnosno indeks MISS (miss indeks), MULT (multiple indeks) i QFI (quality of feed indeks). Ispitan je utjecaj četiri različite frakcije sjemena kukuruza kod dva hibrida na kvalitetu sjetve. Simulacija sjetve obavljena je s različitih tehničkim čimbenicima podešavanja sijačice na ispitnom stolu (dva različita podtlaka, tri brzine gibanja sijačice i četiri položaja skidača viška sjemena). Provedenom simulacijom sjetve na ispitnom stolu utvrđena je statistički značajna razlika utjecaja različitih oblika/frakcija zrna, položaja skidača sjemena, podtlaka i brzine gibanja sijačice na razmak zrna unutar reda prilikom sjetve oba istraživana hibrida. Podtlačna sijačica PSK4 na ispitnom stolu pri brzini gibanja od 4 km ha-1 i položajem skidača sjemena na oznaci 10 ostvarila je visoke koeficijente kvalitete sjetve te se temeljem ostvarenog QFI indeks > 98,6 % može svrstati u grupu vrlo dobrih sijačica. Kod ove brzine gibanja sijačice ispitivani oblici sjemena nisu značajno utjecali na ostvarenje razmake u sjetvi. Nadalje pri upotrebi hibrida H1 ostvaren je prosječni razmaka zrna u sjetvi unutar reda od 19,60 cm koji osigurava sjetvu od 72 448 biljaka ha-1.
Abstract (english)	This paper demonstrates the maize sowing quality results obtained at a test bench. The sowing quality determination is illustrated using the sowing quality indices (ISO standard 7256/1 and 7256/2), i.e. the MISS, MULT, and QFI indices. The research examined a sowing‐quality influence of four different maize‐seed fractions with two hybrids. A sowing simulation was performed with different technical sowing parameters (two vacuum pressures, three working speeds, and four different grain‐selector positions).With the aforementioned research parameters, a statistically significant difference was detected pertaining to different grain fractions, grain‐selector positions, vacuum pressure and working speed concerning the intrarow grain spacing of both maize hybrids researched. The PSK 4 vacuum sowing machine scored the high sowing quality coefficients (QFI index >98.6%) at a working speed of 4 km h-1 and with the grain selector positioned at 10 and can be classified in the group of the very good sowing machines. With regard to the H1 maize hybrid, the average intrarow grain spacing amounted to 19.60 cm, which ensures a set of 72,448 plants per ha, while the set amounted to 72,831 plants per ha (having an average intrarow spacing of 19.51 cm).
Keywords
Keywords (english)
Language	croatian
URN:NBN	urn:nbn:hr:151:541424
Study programme	Title: Mechanization Study programme type: university Study level: graduate Academic / professional title: magistar/ magistra inženjer/inženjerka mehanizacije (magistar/ magistra inženjer/inženjerka mehanizacije)
Type of resource	Text
File origin	Born digital
Access conditions	Open access
Terms of use
Public note	diplomski rad
Repository	Repository of the Faculty of Agrobiotechnical Sciences Osijek
Created on	2021-09-10 09:59:57