Water and Nitrogen Application Levels for the Optimum Tomato Yield and Water Use Efficiency | ||
| Journal of Agricultural Science and Technology | ||
| Article 18, Volume 14, Issue 4, 2012, Pages 889-902 PDF (494.65 K) | ||
| Authors | ||
| A. Ertek* 1; I. Erdal2; H. I. Yilmaz1; U. Senyigit1 | ||
| 1Department of Irrigation, Faculty of Agriculture, Süleyman Demirel University, 32260, Isparta,Turky. | ||
| 2Department of Soil Science, Faculty of Agriculture, Süleyman Demirel University, 32260, Isparta,Turky. | ||
| Abstract | ||
| This study was conducted to determine the effects of different water and nitrogen application levels on drip-irrigated tomato plants. The amount of water usage was based upon the pan evaporation from a screened (class “A”) evaporation pan. The treatments consisted of two irrigation intervals (I1= 5 days and I2= 10 days), three plant-pan coefficients (Kcp1= 0.50; Kcp2= 0.75 and Kcp3= 1.00) and three nitrogen (N) levels (N0 = 0, N1= 80 and N2= 160 kg ha-1). The I, Kcp and N levels affected the tomato yields and water usage efficiencies, however the effects of nitrogen applications were found to be greater than those of the other applications. Consequently, to reach the maximum tomato yields under similar climate and soil conditions, plant-pan coefficients (Kcp) and nitrogen values should be equivalent to 1.00 and 160 kg ha-1, respectively. | ||
| Keywords | ||
| Irrigation; N fertilization; Pan evaporation; Plant-pan coefficient; Tomato | ||
| References | ||
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