难检字字典在线查询

汉语拼音：qǐ guàn

灌溉的一种方法，把灌溉的土地分成面积较小的畦，灌溉时，每个畦依次灌水。

• Extensive land leveling is often required because the topography must be smoother than for furrow irrigation.

  由于畦灌的地形必须比沟灌的平坦，因此，常常需要大面积平整土地。

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

  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。

• Several variations of border irrigation have been devised.

  畦灌的几种变通方式已经被设想出来了。

• Study of Reasonable Technique Elemental Combination in the of the Border Irrigation in the West Guanzhong Plain

  关中西部畦灌优化灌水技术要素组合的初步研究

• Experiment Study on Sediment Distribution Regularity Along the Border Lengthwise of Irrigation Field

  浑水波涌畦灌田面沉积泥沙沿畦长分布规律试验研究

• Experimental study on soil temperature of partial root-divided alternative border irrigation applied in greenhouse capsicum

  温室甜椒局部分根区交替畦灌土壤温度的变化研究

• Linear regression approach for estimating soil infiltration parameters of border irrigation

  畦灌土壤入渗参数估算的线性回归法

• Determination of Comprehensive Technical Parameter in Winter Wheat Film Crack Border Irrigation

  冬小麦膜缝畦灌综合技术参数的确定

• On optimum combination scheme under condition of level-border irrigation and plastic film hole irrigation for corn

  玉米水平畦灌与膜上灌复合最优组合方案研究