Determination Interval and Depth of Canola Irrigation.
2014
Sahabi, Mhedi | Goshe, Mohyedin | Moradi Dalini, Abollfath | Ebrahimi Pak, Niyaz Ali | Naghavi, Hormoz
Canola cultivation develops at some of province in Iran. Information about irrigation schedule in canola field is necessary and this information unavailable. In order to determine optimum canola irrigation schedule (irrigation interval and irrigation depth) this experiment designed. This experiment was randomized complete block design consist of 4 treatment in three replications from 2000 for three years in research stations of Khuzestan, Hormozgan, Ghazvin, Kerman, Markazi, Boushehr and Esfahan province. The treatments were as follow: I1- Irrigation at 50mm cumulative evaporation of class A Pan I2- Irrigation at 75mm cumulative evaporation of class A Pan I3- Irrigation at 100mm cumulative evaporation of class A Pan I4- Irrigation at 125mm cumulative evaporation of class A Pan The depth of irrigation water was calculated to receive. Soil moisture up to fieldcapacity. At the end of growth stages and harvesting time, the grain yield, oil percentage, water use efficiency of canola were determined and statistical analyzes were used and discussed for yield and water use efficiency. The optimum irrigation interval in all of the research stations was irrigation at 75mm cumulative evaporation of class A Pan. The optimum depth of irrigation water were as follow: - Khozestan 350-400 mm - Hormozgan 436 mm - Ghazvin 412 mm - Kerman 343 mm - Markazi 464 mm - Boushehr 561 mm - Esfahan 570 mm Key words: Canola, Irrigation Interval, Irrigation water depth, Irrigation schedule and Evaporation Pan.
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