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Sesame Yield Response to Deficit Irrigation and Water Application Techniques in Irrigated Agriculture, Ethiopia

机译:埃塞俄比亚灌溉农业缺陷灌溉和水应用技术的芝麻产量反应

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摘要

The study was conducted at Werer Agricultural Research Center, Addis Ababa, for two years, 2013 and 2015, during main seasons and for three years, 2012/13, 2013/14, and 2014/15, during the cool period cropping season (November to February) as in the local cropping calendar. The study was aimed at identifying optimum soil moisture stress for sesame and thereby determining appropriate water-saving irrigation methods and also productivity under limited water resource conditions. Nine treatments with three levels of irrigation water percentage based on evapotranspiration of the crop (ETc) (100% ETc, 75% ETc, and 50% ETc) and three types of furrow irrigation methods (alternate furrow, fixed furrow, and conventional furrow) were used. The study design was randomized complete block design (RCBD) with three replications. The yield of sesame had significant (p<0.05) variation among treatments due to deficit irrigation levels and application methods for sesame planted in main seasons. The highest mean yield of 937.50 kg/ha and 2797.6 kg/ha was obtained from the treatment of 50% ETc with alternate and conventional furrow application methods in 2013 and 2015, respectively. The combined mean yield of two years (2013–2015) showed different levels of deficit irrigation, and irrigation methods had a significant effect (p<0.05) on main season planted sesame. Hence, the highest mean yield of 1846.7 kg/ha was obtained from the application of 50% ETc with the conventional furrow application method. In the cool planting season, the highest mean yield of 528.55 kg/ha, 1432.3 kg/ha, and 1562.5 kg/ha was obtained from treatments of 50% ETc, 75% ETc, and 100% ETc with the conventional furrow application method in 2012/13, 2013/14, and 2014/15, respectively. Moreover, during the same period over years, combined analysis showed that the highest mean yield of 1053 kg/ha was obtained from application of 100% ETc with the conventional furrow application method. Thus, it is concluded that a deficit irrigation treatment of 50% ETc with the conventional furrow application method for main season and application of 100% ETc with the conventional furrow application method for cool planting season are best practices of water-saving strategies for irrigated agriculture system.
机译:该研究在Addis Ababa,2013年和2015年,主要季节和三年,2012/13,2013 / 14年和2014/15,在酷时期种植季节(11月)到二月)如在当地种植日历中。该研究旨在鉴定芝麻的最佳土壤水分胁迫,从而确定适当的节水灌溉方法以及在有限的水资源条件下的生产率。九个治疗方法,基于作物(等等)(100%等,75%等)和三种沟灌 - 方法(替代沟,固定沟槽和传统沟槽)的九种灌水水分百分比被使用了。该研究设计是随机完整的块设计(RCBD),具有三种复制。由于在主要季节种植的芝麻灌溉水平和芝麻的应用方法,治疗的芝麻产量具有显着的(P <0.05)变异。最高平均产率为937.50千克/公顷,2797.6千克/公顷的治疗方法分别获得50%等,分别在2013年和2015年的交替和常规的沟槽施用方法获得。两年(2013-2015)的综合平均产量显示出不同水平的缺陷灌溉,灌溉方法对芝麻的主要季节(P <0.05)具有显着影响(P <0.05)。因此,利用传统的沟槽施用方法从50%等施用获得1846.7千克/公顷的最高平均产率。在凉爽的种植季节中,最高平均产量为528.55千克/公顷,1432.3千克/公顷和1562.5 kg / ha获得50%等,75%等的治疗,以及100%等的传统沟槽应用方法2012/13,2013/14和2014/15分别。此外,在多年来的同一时期,组合分析表明,1053千克/公顷的最高平均产率与常规沟槽施用方法施用100%等。因此,得出结论是,用传统的犁沟施用方法等常规犁沟应用方法等缺陷灌溉治疗与凉爽种植季节的传统沟施用方法是灌溉农业的节水策略的最佳实践系统。

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