Now showing items 1511-1530 of 1921

  • Radial Sealers – the Rolle and Importance in Machinery Maintenance 

    Radojevic, Nebojsa; Petrovic, Predrag; Markovic, Ljubisa
    Appropriate choice of sealing elements is one of essential tasks of sealing related with problem of working fluids loosening. In that way cost of maintenance are decreasing and reliability of machinery couples is improving. ...
  • Ralstonia solanacearum – a New Threat to Potato Production in Serbia 

    Milijasevic-Marcic, Svetlana; Todorovic, Biljana; Potočnik, Ivana; Rekanovic, Emil; Stepanovic, Milos; Mitrovic, Jelena; Duduk, Bojan
    A survey of ware potatoes (a total of 1127 samples) from localities in Serbia during two consecutive years resulted in detection and identification of R. solanacearum in 17 tuber samples. The monitoring detected the ...
  • Rare Catch of Petromyzon Marinus, Linnaeus, 1758, Sea Lamprey in Bokaktorska Bay 

    Joksimovic, Aleksandar; Pesic, Ana; Ikica, Zdravko
    In the area of Boka Kotorska Bay, in place Prcanj, is found specimen of Petromyzon marinus, Linnaeus, 1758, Sea Lamprey. This anadromous fish species, are often used to catch on the eastern coast of the Adriatic, now very ...
  • Raspberry bushy dwarf virus – a Grapevine Pathogen in Serbia 

    Jevremovic, Darko; Paunovic, Svetlana
    During a field survey in 2005 in vineyards and grapevine nurseries at localities in central Serbia, a few plants with unusual virus-like symptoms were observed. Leaf samples were analyzed by DAS-ELISA for the presence ...
  • Rating of Harvester Threshers Case 8120 and New Holland CX 8080 

    Wollner, Antonin; Bartos, Petr; Celjak, Ivo; Dolan, Antonin; Petrovic, Ana
    The aim of this work is to review the activity and quality of work of two different combines – CASE 8120 and New Holland CX 8080. The analysis of these two machines is focused on the amount of grain loss, the quality of ...
  • Rationalization in Alfalfa Seed Processing 

    Djokic, Dragoslav; Stanisavljevic, Rade; Terzic, Dragan; Markovic, Jordan; Dinic, Bora; Andjelkovic, Bojan; Barac, Sasa
    Analysis the efficiency of processing equipment for natural alfalfa seed of purity of 71% during various technological processes is given in this paper. Seeds for the establishment and use of alfalfa must be of high ...
  • Rationalization of Apple Transport from Orchard 

    Urosevic, Mirko; Zivkovic, Milovan; Manojlovic, Radomir
    In intensive fruit production, especially in fruit farms, high yields are achieved. Large number of fruits makes organization of picking and further manipulation very challenging. Transport issue in fruit production was ...
  • Rationalization of Irrigation for Field Protection 

    Maksimovic, Livija; Mrkovacki, Nastasija; Milic, Stanko
    Application of fertilizers could influence the activation of desirable microbiological processes in field. In this experiment we applied methods with and without irrigation followed by addition of microbiologicam fertilizer ...
  • Reaction of Barley Varieties to Nitrogen-Potassium Fertilization 

    Kostadinova, Svetla; Panayotova, Galia
    Reaction of barley varieties to nitrogen (0, 200, 400, 600 mg N.kg-1 soil) and potassium (0, 200, 400 mg K2O.kg-1 soil) fertilization was studied on a background of 200 mg P2O5.kg-1 soil under greenhouse conditions in a ...
  • Real Time Fuzzy Logic System for Continuous Control Solenoid Valve in the Process of Applying the Plant Protection Product 

    Berk, Peter; Stajnko, Denis; Lakota, Miran; Belsak, Ales
    In the area of spray technique complex dynamic systems are very often faced with nonlinear or time-variable behavior. Therefore, such a process is difficult to determine in the model, since it can be inaccurate and therefore ...
  • Realization of Monitoring Systems in Agriculture 

    Markovic, Dusan; Tomic, Dalibor; Tanaskovic, Snezana; Stevovic, Vladeta; Pesovic, Uros; Randjic, Sinisa
    Knowledge about relationship between plants and the environment, in which they vegetate, is one of the prerequisites for optimizing plant production. Therefore, monitoring systems play an important role in agriculture. ...
  • Recent Advances In Water Quality Monitoring In Aquaculture 

    Kostic, Dusan; Smederevac-Lalic, Marija; Skoric, Stefan; Lenhardt, Mirjana; Naunovic, Zorana; Hegedis, Aleksandar
    Merenje fizičkih, hemijskih, bioloških parametara je važno za praćenje stanja kvaliteta voda, a samim tim i veoma važno i u akvakulturi. Visokofrekventna merenja kvaliteta voda se poslednjih godina uspešno obavljaju i u ...
  • Recent Records and Incidence of Potato Tuber Necrotic Ringspot Disease (Potato Virus Y, Pvyntn) in Serbia 

    Milosevic, Drago; Starovic, Mira; Brocic, Zoran; Jovovic, Zoran
    Potato virus Y i.e. its necrotic strain (PVYNTN) is among the most economically harmful agents of potato diseases in Serbia and in many countries across the world. Damage caused by the virus involves reduced yields of ...
  • The Recent State Of Distribution Of Endemic Fish Species In Eastern Herzegovina 

    Dekic, Radoslav; Ivanc, Aleksandar; Lolic, Svjetlana; Boskovic, Jelena; Obradovic, Sasa; Cetkovic, Danijela
    Sadašnje stanje rasprostranjenja endemičnih vrsta riba Istočne Hercegovine. U radu je dat pregled istraživanja endemičnih vrsta riba na području Istočne Hercegovine na više lokaliteta. Prema ranijoj sistematici gaovice sa ...
  • Recent Views On Postmortem Aging In Fish 

    Baltic, Milan; Loncina, Jasna; Dimitrijevic, Mirjana; Djordjevic, Vesna; Markovic, Radmila; Karabasil, Nedjeljko; Pavlicevic, Natasa
    Odmah nakon prekida cirkulisanja krvi, pa zbog toga i nedostatka izvora kiseonika, glikogen podlaže anaerobnom razlaganju i preko niza fosforilovanih derivata glukoze prelazi u mlečnu kiselinu, koja se nagomilava u mišićima, ...
  • Reconstitution Of Tench Natural Populations (Tinca Tinca) By Application Of Laboratory Spawning 

    Maletin, Stevan; Lecic, Blagoje; Cirkovic, Miroslav; Milosevic, Nikolina; Ljubojevic, Dragana
    Linjak je jedina vrsta iz roda Tinca i živi u vodama Europe i Sibira do 610 sgš. Najčešće se sreće u manjim plitkim vodenim bazenima sa muljevitim dnom, prosečne dubine do 2 m, koji su dobro zagrejani preko leta i bogato ...
  • Reducion of Air Pollution Level in Livestock Husbandry 

    Zoranovic, Miodrag; Bajkin, Andjelko; Potkonjak, Vlado
    In domestic conditions, except industrial and municipal sewages, at the reduced level of livestock husbendary production, manure is labeled as dangerous matter, with certain pollution level of three basic vital factors: ...
  • Reduction of Mechanisation Costs by the Application of GPS in Arable Crop Production 

    Mago, Laszlo
    The development of informatics applications and electronic data transmission, data processing made the establishment of precision agricultural production technologies and their rapid spread possible. This process was ...