Yazar "Gonulol, E." seçeneğine göre listele

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    Dsensity, Porosity and Permeability Rates of Sunflower Silage Under Different Compaction Conditions
    (Medwell Online, 2009) Toruk, F.; Gonulol, E.; Ulger, P.; Kocabiyik, H.
    In this study, the determination of density, porosity and permeability rates of sunflower silage at different stages of maturity and under different conditions of compaction was aimed. Whole-plant sunflower (Helianthus annuus L.) was harvested at three different maturity stages; (BA, Beginning of Anthesis (78%), ML, one-third Milk Line (70%) and BL, Black Line (64%)). Five compaction levels were done during ensiling. These were control (no compaction), vacuum and compaction with 150 kPa (C,), 248 kPa (C) and 498 kPa (C,). The chopped forages were ensiled in PVC (5.7 L) mini-silos. For porosity measurements, a tube system was designed, which operated according to ideal gas law. Permeability was measured to be the time during, which 1 L water passed through the silo container. The results of this study showed that the values of porosity, permeability and density were found to be significantly affected by the applications of compaction and stages of maturity.
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    The evaluation of alternative stalk chopping methods in sunflower farming
    (Academic Journals, 2009) Gonulol, E.; Dalmis, I. S.; Kayisoglu, B.; Bayhan, Y.; Kocabiyik, H.
    In this study, the alternative chopping methods were compared in sunflower farming. After harvesting sunflower stalk was chopped with three different methods by using three different stalk chopper machines. Two different rotary type machines (RT1 and RT2) and heavy duty disc harrow (CON) were applied in the experiment. Heavy duty disc harrow used as conventional method. Particle size distribution after chopping, management parameters of the machines and energy requirements were determined in the experiment. Maximum frequency with 37.09% for RT1 and 24.62% for CON were found in the stalk size group of 102 - 173 mm. Whereas, maximum frequency with 31.08% was obtained in the size group of 30 - 101 mm for RT2. The highest fuel consumption (19.28 L.ha(-1)) was obtained in CON method and the highest field efficiency with 0.886 ha.h(-1) was found in RT2. RT1 has 756.1 MJ.ha(-1) total energy requirements. RT2 has 868.3 MJ.ha(-1) and CON has 944.3 MJ.ha(-1). The differences among methods in frequency of particle sizes, values of fuel consumption and total energy requirements were found to be statistically significant.