کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4480713 | 1622991 | 2006 | 14 صفحه PDF | دانلود رایگان |
This study was conducted to determine the most suitable irrigation frequency and quantity in cucumber grown under field conditions. The amount of water used was based on pan evaporation from a screened Class-A pan. Irrigation treatments consisted of two irrigation intervals (I1: 4 and I2: 8 day), and three plant-pan coefficients (Kcp1: 0.50; Kcp2: 0.75 and Kcp3: 1.00). Plants were first watered at the transplanting date and scheduled irrigations were initiated after 4- and 8-day intervals.Irrigation quantities applied to the treatments varied from 320 to 509 mm; seasonal plant water comsumption or evapotranspiration of irrigation treatments varied from 391 to 597 mm; and the cuccumber yield varied from 17.99 to 45.20 ton ha−1. The highest total yield was obtained from I2Kcp3 treatment. Moreover, Kcp3 treatments had the highest early yield. Et/Epan ratio according to treatments ranged from 0.29 to 1.25. Irrigation treatments had significant effects (P < 0.01) on yield and there were significant positive linear relations (P < 0.01) between the fruit number and irrigation water and between the plant water compsumption and the yield.In conclusion, Kcp3 treatment with 8-day-irrigation interval is recommended for cucumber grown under field conditions in order to get higher cucumber yield and to save time and labor. Furthermore, the Et/Epan equation of the best irrigation treatment (I2Kcp3) of this study (Et = 1.05Epan + 96.72) should, therefore, be used in the scheduling irrigation programs in similar conditions.
Journal: Agricultural Water Management - Volume 81, Issues 1–2, 10 March 2006, Pages 159–172