The Role of Irrigation Interval on Growth and Consumptive Use of Rice Crop   (Oryza sativa L.)

L. Rasheed, Tareq; H. Atiyah, Ameerah; Sh. Faleh, Adnan; A. Tawfeeq, Husamuldeen

	The Role of Irrigation Interval on Growth and Consumptive Use of Rice Crop (Oryza sativa L.)
Journal of Tikrit University For Agriculture Sciences
Article 1, Volume 17, Issue 3, 2017, Pages 202-209
Authors
Tareq L. Rasheed; Ameerah H. Atiyah; Adnan Sh. Faleh; Husamuldeen A. Tawfeeq
Abstract
Field experiment was conducted to evaluate the irrigation management rice consumptive use on silty clay soil at the Soil and water Resources Center Research station located at Tuwaitha, Baghdad (latitude 33.14o North, longitude 44.14 o East) on 2013. Randomized Complete Block Design with three replicates was used. The treatments were three irrigation treatments (irrigation periods) and two Rice cultivars (Manathara Anbar and Baghdad Anbar). Irrigation periods were on each one day, 3 days and 5 days where 30mm irrigation water depth added for each irrigation for the whole growing season. Field calibrated Neutron prop was used to monitoring soil water content. Result showed that plant height, dry matter and grain yield did not differ between daily irrigation and each 3 days for the two rice cultivars. While irrigation treatment each 5 days caused a decrease in plant height, dry matter and grain yield as compared with the other irrigation treatments, and the rice cultivars did not affect these factors. Also, results indicated that water use efficiency in daily irrigated treatment were decreased with 21.5% and 37.5% for Manathara Anbar cultivars and 21.5% and 42.3% Baghdad Anbar as compared with 3 days and 5 days' irrigation treatments respectively, because of the high amount of irrigation water applied.
Keywords
soil water content; Rice cultivars; water use efficiency

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