| 压片式微喷带在辽西干旱区甘草种植中的应用 |
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| 引用本文： | 王海兵,窦超银,于秀琴.压片式微喷带在辽西干旱区甘草种植中的应用[J].安徽农业科学,2012(20):10703-10706. |
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| 作者姓名： | 王海兵 窦超银 于秀琴 |
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| 作者单位： | 辽宁省水利水电科学研究院;建平县灌溉试验站 |
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| 基金项目： | 水利部科技推广计划项目(TG1203)《辽西北地区农业节水丰产与抗旱减灾实用技术推广》 |
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| 摘 要： | 目的]为了缓解辽西地区旱情频发对农业的压力,同时为了推广新型节水灌溉设备—压片式微喷带的应用。方法]在田间条件下对压片式微喷带工作性能进行试验研究,并通过与漫灌灌溉和无灌溉处理进行甘草种植效果比较,验证这一新型微灌设备的应用的可行性。结果]压片式微喷带灌水均匀,灌溉后土壤水分空间变异系数低于10%;压片式微喷带灌溉与漫灌灌溉甘草株高相近,显著高于无灌溉处理;在整个甘草生长期内,压片式微喷带灌溉处理灌水量为4 139 m3/hm2,产量为14 970 kg/hm2,水分利用效率为3.62kg/m2,净效益达60 570元/hm2,相对漫灌灌溉分别高出9.2%、15.0%、26.6%和17.0%。结论]压片式微喷带在田间具有较好的工作性能,具有节水增产的特点,能得到较高的经济效益,适合用于节水灌溉农业。
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| 关 键 词： | 灌溉均匀度 生长阶段 水分利用效率 土壤含水量 株高 |
Study on Application of Polyethylene-blankholder Spray Tape in Glycyrrhiza uralensis L.Planting in Western Arid Region of Liaoning Province |
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| Institution: | WANG Hai-bing et al(Water Conservancy and Hydropower Science Research Institute of Liaoning,Shenyang,Liaonin 110003) |
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| Abstract: | Objective] To alleviate the pressure on agrisulture brought by the frequent drought in western arid region of Liaoning Province,and promote a new type water-saving irrigation equipment of polyethylene-blankholder spray tape.Method] The Glycyrrhiza uralensis L.planting effect irrigated by polyethylene-blankholder spray tape was studied by field experiment,and then compared with that of flood irrigation and non-rrigation.The application practicability of the new type irrigation equipment was verified.Result] The soil water distributed uniformly after each irrigation and variation coefficient of water distribution uniformity was less than 10%;during the flowering period and maturation period,water consumption by spray irrigation and traditional irrigation was significantly larger than non-irrigation,meanwhile,the height of Glycyrrhiza uralensis L.of irrigation treatments were significantly higher than non-irrigation after flowering period;however,the water consumed during the whole growing season,yield,water use efficiency and net contribution of treatment irrigated by spray tape were 4 139 m3/hm2,14 970 kg/hm2,3.62 kg/m3,and 60 570 yuan/hm2,which were 9.2%,15.0%,26.6% and 17.0%,respectively,larger than traditional irrigation.Conclusion] Since the polyethylene-blankholder spray tape had a better working performance,saved water and increased yield while used for irrigation,it was suit for water-saving agriculture. |
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| Keywords: | Irrigation uniformity Growth stage Water use efficiency Soil water content Plant height |
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