UDC631 ISSN1333 - 2651 UNIVERSITY OF ZACREB FACULTY OF ACRICULTURE ACRICULTURAL ENCINEERlNC DEPARTMENT FACULTy OF ACRICULTURE UNtVERStTy OF OSTJEK FACULTY OF ACRICULTURE UNIVERSITY OF MARIBOR AGRICULTURAL INSTITUTE OF SLOVENIA H U NCARIAN I NSTITUTE OF ACRICU LTURAL ENC I N EERlNC CROATIAN ACRICULTURAL ENCINEERING SOCTETY ftffiAAESEE4ryi@ PROCEEDINCSOF THE 36. INTERNATIONATSYMPOSIUM ON AGRICULTURATENGI NEERI NC ActualTasks on Agricultural Engineer I ng € N c, ) 4 o |lI II 11) I t; = F o 4 I F g o SVEUČILIŠTE U ZAGREBU AGRONOMSKI FAKULTET ZAVOD ZA MEHANIZACIJU POLJOPRIVREDE POLJOPRIVREDNI FAKULTET SVEUČILIŠTA U OSIJEKU FAKULTETA ZA KMETIJSTVO UNIVERZE V MARIBORU KMETIJSKI INŠTITUT SLOVENIJE MAĐARSKI INSTITUT ZA POLJOPRIVREDNU TEHNIKU HRVATSKA UDRUGA ZA POLJOPRIVREDNU TEHNIKU AAESEE AKTUALNI ZADACI MEHANIZACIJE POLJOPRIVREDE ZBORNIK RADOVA 36. MEÐUNARODNOG SIMPOZIJA IZ PODRUČJA MEHANIZACIJE POLJOPRIVREDE OPATIJA, 11. - 15. veljače 2008. Izdavači Sveučilište u Zagrebu, Agronomski fakultet, Published by Zavod za mehanizaciju poljoprivrede, Svetošimunska 25, 10000 Zagreb HINUS, Miramarska 13 b, Zagreb Glavni i odgovorni urednik Silvio Košutić Chief editor e-mail: [email protected] Tehnički urednik Hrvoje Zrnčić Technical editor Organizacijski odbor Krešimir Čopec, Goran Fabijanić, Dubravko Organising committee Filipović, Zlatko Gospodarić, Igor Kovačev, Ðuro Banaj, Robert Zimmer, Viktor Jejčić, Miran Lakota, Tomaž Poje Znanstveni odbor Nikolay Mihailov (Bulgaria), Silvio Košutić, Scientific committee Robert Zimmer, (Croatia), Peter Schulze- Lammers, Joachim Müller (Germany), Daniele De Wrachien, Ettore Gasparetto (Italy), Linus U. Opara (Oman), Maohua Wang (P.R. China), Victor Ros (Romania), Milan Martinov (Serbia), Jaime Ortiz- Canavate (Spain), Vilas M. Salokhe (Thailand), Bill A. Stout (USA) Naklada 200 Number of copies ISSN 1333-2651 http://atae.agr.hr Slika s naslovnice korištena je dobrotom autora gospodina Dušana Jejčiča Cover painting is printed by courtesy of author Mr Dušan Jejčič Oblikovanje naslovnice / Cover design: Marko Košutić Radovi iz Zbornika su od 1997. indeksirani u bazama podataka: Papers from the proceedings have been indexed since 1997 into databases: Current Contents Proceedings, ISI - Index to Scientific & Technical Proceedings, CAB International - Agricultural Engineering Abstracts, Cambridge Scientific Abstracts - Conference Papers Index, InterDok. SPONZORI – SPONSORS MINISTARSTVO ZNANOSTI, OBRAZOVANJA I ŠPORTA REPUBLIKE HRVATSKE MINISTARSTVO POLJOPRIVREDE, ŠUMARSTVA I VODNOG GOSPODARSTVA INA ZAGREB AGROGROM SAMOBOR SIP ŠEMPETER, SLOVENIJA POLJONOVA SESVETE GRAMIP – TPS DUBRAVA INTERSTEP VELIKA GORICA AGROMARKETING ZAGREB PREDGOVOR - PREFACE Sustavnim radom organizacijskog tima, a uz stalnu potporu kolega iz struke, strukovnih udruga (HUPT i HAD), trgovačkih kuća-predstavnika svjetskih proizvođača poljoprivred- nih strojeva i opreme, Ministarstva znanosti obrazovanja i športa i Ministarstva poljopriv- rede, šumarstva i vodnog gospodarstva, te međunarodnih udruga Poljoprivredne tehnike (EurAgEng, CIGR, AAAE i AAESEE) dospjeli smo do 36. Simpozija ”Aktualni zadaci mehanizacije poljoprivrede”. Tijekom proteklih godina obišli smo slijedeće gradove, do- maćine simpozija: Zagreb (’70, ‘82), Zadar (’75, ‘87), Poreč (’77, ‘81), Split (’78, ’85), Opatija (’79, ’83, ’84, ’88, ’90, ’94 – ’08), Šibenik (’80), Rovinj (’86), Trogir (’89), Stubičke toplice (‘92) Pula (’91, ’93). Dakle, najveći broj godina, ukupno 19, grad domaćin bila je Opatija. Ukupan broj radova od 1.425, varirao je 20 – 83, prosječno 44.5 radova, a ukupan broj stranica svih Zbornika je 13.432 s variranjem 58 – 900, prosječno 419.8. Ovaj 36. po redu Zbornik sadrži 63 rada sa slijedećim učešćem: Bugarska, Bijelorusija, Češka, Indija, Litva i Sjedinjene Američke Države (1), Italija i Njemačka (2), Mađarska i Turska (3), Bosna – Hercegovina (4), Srbija i Kina (5), Hrvatska (8), Slovenija (9) i Rumunjska (16). Zahvaljujemo svim sponzorima koji su svojom potporom omogućili održavanje ovak- vog skupa, autorima referata, kao i svim učesnicima na interesu. Posebno se zahvaljujemo Ministarstvu znanosti i tehnologije Republike Hrvatske na stalnoj potpori. Svim sudionici- ma želimo ugodan boravak u Opatiji za vrijeme održavanja Simpozija. Continuous work of organizing team with long-term support of our colleagues, our associations (CAES, CSA), commercial representatives of the world famous agricultural machinery and equipment producers, Ministry of sciences, education and sport, Ministry of agriculture, forestry and water management and finally world known associations for agri- cultural engineering (EurAgEng, CIGR, AAAE and AAESEE) has brought us to the 36th symposium ”Actual tasks on Agricultural Engineering”. During all that years host towns were as follows: Zagreb (’70, ‘82), Zadar (’75, ‘87), Poreč (’77, ‘81), Split (’78, ’85), Opatija (’79, ’83, ’84, ’88, ’90, ’94 – ’08), Šibenik (’80), Rovinj (’86), Trogir (’89), Stubičke toplice (‘92) Pula (’91, ’93). So, Opatija was our favourite town with 19 years in total. Total number of published papers was 1,425 with variations 20 to 83 per proceedings, in average 44.5 papers. Total number of pages was 13,432 with variations of 58 to 900 per proceedings, in average 419.8 pages. This proceedings contains 63 papers among them are: Bulgaria, Belarussia, Czech, India, Lithuania and USA with 1, Italy and Germany with 2, Hungary and Turkey with 3, Bosnia – Herzegovina with 4, Serbia and China with 5 , Croatia with 8, Slovenia with 9 and Romania with 16 papers. We would like to thank authors, reviewers, participants and especially sponsors for their contribution to organise the symposium. We especially emphasize sponsoring of Ministry of Sciences education and sport of Republic of Croatia who support us for 13 years. Finally we wish all participants, our colleagues pleasant time and company during symposium. Chief Editor Zagreb, siječanj - January 2008. Prof. dr. sc. Silvio Košutić SADRŽAJ – CONTENTS S. Mambretti, D. De Wrachien, E. Larcan....................................................................... 13 Tok nanosa i branom uzrokovani prekidni naplavni valovi: Dinamika reologije i modeliranje Debris flow and dam-break flooding waves: Dynamics rheology and modelling S. Mambretti, E. Larcan, D. De Wrachien....................................................................... 35 Tok nanosa i branom uzrokovani prekidni naplavni valovi: Model kalibracije i usporedba s probnim testovima Debris flow and dam-break flooding waves: Model calibration and comparison with experimental tests A. K. Goel ............................................................................................................................ 47 Razvoj modela otjecanja oborina za brežuljkasto porječje regije donji Shivaliks u Indiji Development of a rainfall runoff model for hilly watershed in lower Shivaliks region of India R. Miodragovic, M. Djevic................................................................................................. 57 Rezultati testiranja mobilnih irigacijskih sustava kišenjem Results of testing mobile raining irrigation systems in crop production J. Zhang, Y. Sheng, Y. Zhao, P. Yang .............................................................................. 65 Automatski, precizni sustav irigacije u proizvodnji pamuka An automatic precision irrigation system for cotton field V. Borovikov........................................................................................................................ 71 Poboljšanje općih parametara diesel motora traktora učinkovitijim punjenjem goriva-zraka Improvement of general parameters of tractor diesel by more effective use of fuel-air charge V. Jejčič, T. Poje, T. Godeša.............................................................................................. 79 Mogućnost uporabe biljnog ulja za pogon traktora i drugih vozila Possibilites of running tractors and vehicles by plant oil R. Rosca, I. Tenu, P. Carlescu, E. Rakosi, G. Manolache............................................... 93 Model trakcije kotača s pneumatikom Tire traction models - Comparative analysis and validation 36. Symposium "Actual Tasks on Agricultural Engineering", Opatija, Croatia, 2008. V. Jurić, T. Jurić, D. Kiš, R. Kiš, I. Plaščak................................................................... 105 Poljoprivredni traktori kao čimbenik sigurnosti prometa Agricultural tractors as factors in traffic safety S. Şt. Biriş, E. Maican, V. Vladuţ, G. Paraschiv, M. Manea, S. Bungescu.................. 115 Studija kinematike gibanje čestica tla djelovanjem predplužnjaka Study regarding the soil particles kinematics during the ante-mouldboard tillage tools working process I. Ţenu, P. Cojocariu, R. Rosca, P. Carlescu ................................................................. 127 Testiranje složenog agregata za istovremenu obradu tla i sjetvu strnina The achivement and experimentation of one complex unit for total tillage and sowing of the soil for straw crops G. Paraschiv, E. Maican, S.-Ş. Biriş, S. Bungescu......................................................... 135 Razvoj i ispitivanje oruđa za obradu tla u održivoj poljoprivredi Researches regarding the development of a soil preparation unit according to the demands of sustainable agriculture L. Savin, R. Nikolić, M. Simikić, T. Furman, M. Tomić, S. Đurić, J. Vasin............... 145 Analiza utjecaja zbijenosti tla uvratina i unutrašnjeg dijela polja na urod pšenice The analysis of soil compaction influence on wheat yield on