• 畦灌的几种变通方式已经被设想出来了。

    Several variations of border irrigation have been devised.

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  • 介绍了地面灌溉中畦灌水流运动的特性及零惯量模型。

    The characters of border irrigation water flow movement of surface irrigation and its zero-inertia model have been introduced.

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  • 研究了辽西半干旱区井灌条件下褐土涌流畦灌的节水效果。

    Water saving effects on surge flow border irrigation were studied under well irrigation in semi-arid area of West Liaoning.

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  • 根据大量试验研究成果,提出了波涌畦灌灌水技术要素设计的理论方法和经验方法。

    Based on a great amount of experimental research, the theoretical and empirical design methods of surge flow border irrigation technical parameters are presented.

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  • 在一定范围内,适当缩短周期灌水时间,增加灌水周期数会提高涌流畦灌的节水率。

    Within a certain range, the rate of water saving might be improved by adding number of irrigation cycles and shortening the period of irrigation cycle.

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  • 畦灌水流推进过程计算模型对确定灌水技术要素、田间平均入渗率和糙率有十分重要的作用。

    Border irrigation current advancement process model plays an important role to determine irrigation technical index, average field infiltration rate and roughness coefficient.

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  • 小畦灌的应用历史已久,也有较好的群众基础,但理论研究、产品研发、技术推广工作方兴未艾。

    There has been long history and wide extent for application of small border irrigation, but theoretical research, product development and technique popularization should be enhanced.

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  • 以传统地面灌溉(畦灌)为对照,分析了喷灌条件下,冬小麦农田土壤水分分布特征和水量平衡。

    The characteristics of soil water distribution and soil water balance of winter wheat were analyzed under sprinkler irrigation, with surface irrigation (border irrigation) as the control treatment.

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  • 在露地栽培条件下,研究了不同氮、钾、钙水平处理以及喷灌、畦灌对生菜钙吸收和干烧心的影响。

    Ca absorption and tipburn of lettuce were studied under different application of n, k, ca, sprinkler irrigation and border irrigation in open field.

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  • 研究表明同一次畦灌过程中地表储水形状系数并非恒定值,而是随灌水时间和水流推进距离等因素变化的。

    Research results showed that the surface shape factor was not a constant value, but a variable value with the change of irrigation time, water advance distance and other factors.

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  • 在对水量平衡模型进行修改的基础上,结合零惯量运动方程,以水量平衡方程为基础,对畦灌水流演进模型的结构进行了研究。

    The explicit volume balance model was modified and combined with the motion equation of the zero inertia to predict water advance in border irrigation.

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  • 在对水量平衡模型进行修改的基础上,结合零惯量运动方程,以水量平衡方程为基础,对畦灌水流演进模型的结构进行了研究。

    The explicit volume balance model was modified and combined with the motion equation of the zero inertia to predict water advance in border irrigation.

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