中国农业科学Issue(24)：5098-5112,15.DOI:10.3864/j.issn.0578-1752.2013.24.004
不同喷射角微喷带灌溉对土壤水分布与冬小麦耗水特性及产量的影响
Effects of Irrigation with Micro-Sprinkling Hoses of Different Sprinkling Angles on Soil Water Distribution and Water Consumption Characteristics and Grain Yield of Winter Wheat
摘要
Abstract
[Objective]The objective of this experiment was to study the effects of irrigation with micro-sprinkling hoses of different sprinkling angles on soil water distribution and water consumption characteristics and grain yield of winter wheat, to provide a scientific basis for innovating water-saving irrigation technology and achieving high-yield and high-efficiency cultivation of wheat. [Method]Field experiments were conducted with high-yield winter wheat cultivar Jimai 22 in Yan Zhou, Shandong Province during 2010-2012 growing seasons. Five irrigation treatments were designed: T0, no irrigation during the whole growth stage;T1, T2, T3, T4 were irrigated with micro-sprinkling hose, and the sprinkling angles were 35°, 50°, 65° and 80°, respectively. The length of all micro-sprinkling hose was 40 m. The hose was put at the middle of the border along the direction of wheat rows, which irrigated the four rows (L1-L4) besides it, the irrigation width was 1.6 m in field.[Result]Under the condition of micro-sprinkling irrigation applied at jointing and anthesis stages, the soil water content in 0-200 cm soil layer from L1 to L4 of each sampling area in the same treatment had the same change law. The soil water content in the upper soil layers decreased with increasing the distance from inter-rows of wheat to micro-sprinkling hose in T1, T2 and T3 treatments, and the irrigation water distribution uniformity in soil increased with increasing the sprinkling angle from 35° to 65°. There was no significant difference among each inter-rows of wheat in soil water content of 0-200 cm soil layer in T4 treatment, and the irrigation water distribution uniformity in soil of T4 treatment was the highest. Compared to other treatments, the soil water consumption in 40-80 cm soil layer from jointing to anthesis and in 20-80 cm soil layer from anthesis to maturity in T4 treatment were the highest, while the water consumption from jointing to anthesis, irrigation amount in anthesis and total irrigation amount, total water consumption in T4 treatment were the lowest. The grain yield, yield water use efficiency and soil water use efficiency in T4 treatment were higher than those in T1, T2 and T3 treatments. [Conclusion]As far as high-yield and high-water use efficiency were concerned in this experimental, the most appropriate treatment for recommendation was the one which irrigated with sprinkling angle of 80° micro-sprinkling hose at jointing and anthesis stages.关键词
微喷带灌溉/喷射角/土壤水分布/耗水特性/籽粒产量/冬小麦Key words
micro-sprinkling irrigation/sprinkling angle/soil water distribution/water consumption characteristics/grain yield/winter wheat引用本文复制引用
满建国,王东,张永丽,石玉,于振文..不同喷射角微喷带灌溉对土壤水分布与冬小麦耗水特性及产量的影响[J].中国农业科学,2013,(24):5098-5112,15.基金项目
国家自然科学基金 （）
