Browsing by Author "Kapur, Burcak"

Now showing 1 - 2 of 2

A Comparative Field Study of the Alternate Every Other Furrow Surge Irrigation and the Every Furrow Surge Irrigation Techniques
(Wfl Publ, 2013) Kapur, Burcak; Unlu, Mustafa; Kanber, Riza; Tekin, Servet; Koc, Deniz Levent; Kekec, Ugur
This study was conducted in order to compare the alternate every other furrow surge irrigation (AFO) to the every furrow surge irrigation (EFO), under Mediterranean conditions in Turkey at the Cukurova University experimental farm. The experiment was undertaken in order to determine the appropriate throughput at furrow lengths of 110 m. In general, depending on the water flow (0.87-1.16 L/s) and the duration of the irrigation application (228-272 min), there may be differences on the amount of water under the same flow rates with the use of similar forms of operating furrow application of the AFO, which was determined to be more advantageous than the application of the EFO. The application efficiencies were quite similar by 78% in the EFO and 84% in the AFO, respectively. The reason for these high efficiencies was found to be due to the lacking irrigation application concerning the time of irrigation and the rate of water flow. Significant water savings were achieved by AFO compared to the EFO technique in the field by using the furrows in turns at each irrigation operation. The average soybean yields for both two years were 252 kg/da for the EFO and 259 kg/da for the AFO application. The results of the experiment revealed that the AFO furrow irrigation technique was the appropriate surface irrigation technique for the studied area.
Effect of Elemental Sulphur on Heavy Metals Solubility and Remediation by Plants in Calcareous Soils
(Parlar Scientific Publications (p S P), 2007) Cimrin, K. Mesut; Turan, Metin; Kapur, Burcak
Sewage sludge application may lead to the accumulation of a number of potentially harmful components, such as heavy metals, in the applied sludge possibly resulting in phytotoxic effects, soil and water contamination, and accumulation of heavy metal in food supplies. A pot experiment was conducted to compare the relative efficiency of elemental sulphur application in enhancing Ph and Cd phyto-extraction, and to increase Ph and Cd desorption from heavy metal-contaminated soil. Two rates of elemental sulphur (S) applied at 0 (SO) and 300 (S300) mmol kg(-1) soil with three rates of each metal at 0, 200, and 400 mg kg(-1) Pb(NO3)(2) and 0, 50 and 100 mg kg(-1) Cd (CdCl2). Six corn plants were grown for 42 days in pots of contaminated calcareous soil. Results indicated that with S application at 300,mmol S kg(-1) soil pH decreased by 0.5 unit, and solubility of both Ph and Cd was significantly increased. The concentration of Fe, Mn, Zn, Cu, Ph and Cd in maize shoots and roots were increased with increasing rates of heavy metals. However, the concentrations of Pb and Cd in shoots and roots were higher with application of S than without S. Root Fe, Mn and Zn uptake rates were higher than those of shoot, whereas Pb and Cd uptake of shoot was greater than that of roots in corn plants. Plant yield was also significantly affected by application of S and heavy metals. With heavy metal addition, the shoot and root biomasses were decreased with rates of heavy metal increase, either with or without application of S. The removal of Pb and Cd by maize uptaken from the soil increased by application of S within a growth period of only 42 days. As a conclusion, it can be said that sulphur application facilitated Fe, Mn, Zn,Cu, Pb and Cd phyto-extraction, and this may provide an effective soil decontamination strategy in calcareous soils.