Effects of Supplemental Irrigation Using Catchment Rainfall on Water Movement of Potato Field in Semi-arid Rainfed Areas

QIN Shu-hao; ZHANG Jun-lian; WANG Di; LIU Zhen; SHEN Peng

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Effects of Supplemental Irrigation Using Catchment Rainfall on Water Movement of Potato Field in Semi-arid Rainfed Areas

更新时间：2024-11-07

- Effects of Supplemental Irrigation Using Catchment Rainfall on Water Movement of Potato Field in Semi-arid Rainfed Areas
- Vol. 25, Issue 4, (2011)
- 作者机构：
  
  甘肃省干旱生境作物学重点实验室/甘肃农业大学农学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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QIN Shu-hao, ZHANG Jun-lian, WANG Di, et al. Effects of Supplemental Irrigation Using Catchment Rainfall on Water Movement of Potato Field in Semi-arid Rainfed Areas[J]. 2011, 25(4).
DOI：

QIN Shu-hao, ZHANG Jun-lian, WANG Di, et al. Effects of Supplemental Irrigation Using Catchment Rainfall on Water Movement of Potato Field in Semi-arid Rainfed Areas[J]. 2011, 25(4). DOI：

摘要

采用大田试验方法

研究集雨补灌对旱作马铃薯田水分运移规律和产量的影响。结果表明

对马铃薯有效的土壤水分主要分布在80 cm以上土层

苗期补灌45 mm处理水分利用效率(WUE)最高

且收获后不同土层中滞留的水分较少;在此基础上再增加补灌量

马铃薯产量增加不显著

WUE显著降低。集雨补灌增加了马铃薯棵间蒸发量(E)和植株蒸腾量(T)

90 mm高额补灌处理在前、中期棵间蒸发量较高

收获后80 cm以下深层贮水量显著高于45 mm及45 mm以下补灌处理。45 mm与90 mm补灌处理植株蒸腾量差异不显著

马铃薯生长后期

苗期补灌与薯块膨大期补灌植株蒸腾量差异亦不显著;苗期45 mm补灌处理蒸腾量与蒸发量比率(T/E)比较高

其综合用水效率较高。

Abstract

The effects of supplemental irrigation using catchment rainfall on water movement and production of rain-fed potato were studied by field experiments.The results showed that WUE of potato was higher in the supplemental irrigation treatment of 45 mm than other treatments at the seedling stage

and the storage of water in different soil depth was more least.With the increasing of irrigation amount

the production of potato was not increased significantly and WUE decreased significantly.The soil evaporation and ...

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