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    THE DETERMINATION OF NITRIFICATION POTENTIALS OF THE AMIK PLAIN COMMON SOIL SERIES
    (Parlar Scientific Publications (P S P), 2013) Dogan, Kemal; Coskan, Ali; Pamiralan, Hesna; Gok, Mustafa
    In this study, the nitrification potentials of 5 soil series (Pasakoy, Akkerpic, Aktas, Kangallar, Baglama), common to the Amik Plain in Hatay/Turkey, have been determined. To this end, 2 different incubator trials were carried out, with and without fertilizers. Hence, the nitrification potentials of natural and fertilized soils have been determined. The ammonium results of fertilized trials which comprised the main objective of the study dropped to minimum levels after the 7th measurement day whereas the initial ammonium content of the studied soil (200 mg/kg), on the 11th day (3rd measurement day) was determined to be 3.7, 20.9, 4.1, 2.7 and 7.5 mg/kg, respectively. According to these results, the Kangallar series which rapidly dropped to an ammonium content of 2.7 mg/kg was determined to be that with the highest nitrification capacity. In addition, Akkerpic soil series was that with the lowest nitrification rate but the highest ammonium value (20.9 mg/kg) on the 11th measurement day. According to the study results, the nitrification potentials of the study areas have been determined to be high. Therefore, the regional soils and underground waters face the threat of nitrification, possibly damaging macro and micro living things and plants by nitrate compounds.
  • [ N/A ]
    Öğe
    The determination of nitrification potentials of the amik plain common soil series
    (2013) Dogan, Kemal; Coskan, Ali; Pamiralan, Hesna; Gok, Mustafa
    In this study, the nitrification potentials of 5 soil series (Pasakoy, Akkerpic, Aktas, Kangallar, Baglama), common to the Amik Plain in Hatay/Turkey, have been determined. To this end, 2 different incubator trials were carried out, with and without fertilizers. Hence, the nitrification potentials of natural and fertilized soils have been determined. The ammonium results of fertilized trials which comprised the main objective of the study dropped to minimum levels after the 7th measurement day whereas the initial ammonium content of the studied soil (200 mg/kg), on the 11th day (3rd measurement day) was determined to be 3.7, 20.9, 4.1, 2.7 and 7.5 mg/kg, respectively. According to these results, the Kangallar series which rapidly dropped to an ammonium content of 2.7 mg/kg was determined to be that with the highest nitrification capacity. In addition, Akkerpic soil series was that with the lowest nitrification rate but the highest ammonium value (20.9 mg/kg) on the 11th measurement day. According to the study results, the nitrification potentials of the study areas have been determined to be high. Therefore, the regional soils and underground waters face the threat of nitrification, possibly damaging macro and micro living things and plants by nitrate compounds.
  • Küçük Resim
    Öğe
    Effect of solarization under different applications on soil temperature variation and microbial activity
    (Wfl Publ, 2013) Dogan, Kemal; Sariyev, Alhan; Gok, Mustafa; Coskan, Ali; Tulun, Yusuf; Sesveren, Sertan; Pamiralan, Hesna
    Soil solarization is an environment-friendly soil pasteurization technique which uses the solar energy to increase the soil temperature to diminish soil-related pests and pathogens. The efficiency of this technique is closely related with a number of factors such as soil water and organic matter contents and feature of cover material; therefore, the effect of solarization was studied under applications of CO2, basaltic tuff (BT), organic matter (OM) and a different color plastic cover (PE2) on soil temperature and microbial activity as dehydrogenase enzyme activity (DHA) and soil respiration (CO2). The trial was carried out in a greenhouse for 32 days. Organic matter, salt and lime contents, pH and texture class of greenhouse soil were 1.7%, 0.055%, 38.5%, 7.7 and clay, respectively. According to the results, while the lowest CO2 value was determined as 12.9 mg/100 g ds. 24 h in the A6 (PE2) application, the highest CO2 value was determined as 16.3 mg/100 g ds. 24 h in the A4 (+OM 1.5 kg/m(2)) application. The dehydrogenase enzyme activities (DHA) yielded similar results with the applications, however, the highest value (291.2 mu g TPF/10 g ds.) was in A7 (control). Soil (0-5 cm) temperatures varied between 28.1 and 60.1 degrees C with applications and the lowest soil temperature was determined in the control plot. The effect of the applications to soil temperature led to significant differences statistically (p<0.05). The results documented that the organic matter (OM) and CO2 amendments (OM or +OM+CO2) had a role in protecting soil microbial activity (dehydrogenase-DHA) and soil respiration (CO2) from the detrimental effects of the heating of solarization.