Yazar "Tozan M." seçeneğine göre listele

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    Comparing of ridge planting performance of precision planters equipped with shoe and disc coulters [Baltalı ve Diskli Gömücü Ayağa Sahip Tek Dane Ekim Makinalarının Sırta Ekim Performanslarının Karşılaştırılması]
    (Ankara University, 2017) Yazgi A.; Yalçin H.; Aykas E.; Tozan M.
    The objective of this study was to determine ridge planting performance of the precision seeders equipped with shoe and disc type coulters and to reveal differences between seeders. To meet this target both laboratory and field experiments were conducted. Seed spacing distribution uniformity of the machines were determined using sticky belt tests at the laboratory. The values of plant spacing distribution uniformity, ratio of plant emergence, seeding depth uniformity, negative driven wheel slips of the seeders and driven wheel slips of the tractors were determined by the tests carried out on field conditions. Based on the experimental results, it was determined that, all seeders performances in terms of seed spacing distribution uniformity were found in “good” quality under laboratory conditions, while seeding quality in ridge planting on the field was determined lower than laboratory conditions for all seeders. But seeders equipped with disc type coulters were determined more effective than seeders equipped with shoe type coulters in high quality corn seeding under field conditions. It was found that seeders equipped with disc type coulters provided both higher plant emergences and more uniform seed depths in firm terms. The values of negative driven wheel slips of the seeders were determined as 0.93-5.34% and 9.14-10.24% for shoe type and disc type seeders, respectively. The values of driven wheel slips of the tractors were ranged from 1.38% to 3.83% and from 5.39% to 9.50% for shoe type and disc type seeders, respectively. Based on the all findings it was determined that seeders equipped with disc type coulters should be used in ridge planting. © Ankara Üniversitesi Ziraat Fakültesi.
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    An in vitro assessment of the effectiveness of some bactericides on bacteria isolated from soaking float
    (2009) Yapici A.N.; Yapici B.M.; Karaboz I.; Tozan M.
    In this study, the effectiveness of 5 commercial bactericides commonly used in leather processing was examined in vitro. Bacteria were isolated from soak water by means of proteolytic bacteria culture medium, plate count agar (PCA) and halotolerant bacteria medium containing 10 % NaCl and identified as Gram positive Staphylococcus sp., Diplococcus sp., Micrococcus sp., Corynobacterium sp., Bacillus sp. and Gram negative bacterium. The effectiveness of bactericides was determined in vitro on these bacteria through disc diffusion method. Results were evaluated in comparison with antimicrobial activities of some standard antibiotics on the same microorganisms. It was observed that Derbio DB 99® (bactericide I) was effective on all types of bacteria. Biocide B-7® (bactericide II) was effective on Staphylococcus sp., Diplococcus sp. and Micrococcus sp. It was also observed that Aracit KL® (bactericides III) and Preventol Z-L® (bactericides IV) were effective only against Staphylococcus sp. and Diplococcus sp. On the other hand, Pluscide HP® (bactericides V) did not show enough effectiveness. As a result, it was found out that the most effective bactericide was Bactericide I.