Different Buried Depths of Underground Drip Irrigation on Alfalfa Land in the Sandy Area of North China

XIA Yu-hui; WANG You-ke; WANG Jiang; WANG Zhi-tong

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Different Buried Depths of Underground Drip Irrigation on Alfalfa Land in the Sandy Area of North China

- Different Buried Depths of Underground Drip Irrigation on Alfalfa Land in the Sandy Area of North China
- Bulletin of Soiland Water Conservation Vol. 27, Issue 4, Pages: 100-104(2008)
- 作者机构：
  
  1. 西北农林科技大学水土保持研究所, 陕西杨凌,712100
  2. 国家节水灌溉杨凌工程技术研究中心, 陕西杨凌,712100
  3. 内蒙古阿拉善左旗宗别立动物防疫站, 内蒙古阿左旗,750306
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008
- 稿件说明：
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XIA Yu-hui, WANG You-ke, WANG Jiang, et al. Different Buried Depths of Underground Drip Irrigation on Alfalfa Land in the Sandy Area of North China[J]. Bulletin of Soiland Water Conservation, 2008, 27(4): 100-104.
DOI：

XIA Yu-hui, WANG You-ke, WANG Jiang, et al. Different Buried Depths of Underground Drip Irrigation on Alfalfa Land in the Sandy Area of North China[J]. Bulletin of Soiland Water Conservation, 2008, 27(4): 100-104. DOI：

摘要

研究了半干旱沙区不同滴灌带埋设深度下紫花苜蓿的生长特性。通过试验研究分析了滴灌带埋设深度对紫花苜蓿植株高度、茎粗、分枝数、根系生长、根系密度和产量等生长特性的影响。采用主成分分析法对不同滴灌带埋设深度的紫花苜蓿等生长特性进行了综合评价。结果表明

滴灌带不同埋设深度对苜蓿各个生育期生长特性指标影响不同。在苗期

埋设深度为10 cm的处理

有利于苜蓿生长。从分枝期起

埋设深度为30 cm的处理优于其它处理;在整个生育期内

不同埋设深度对苜蓿生长特性影响的综合评判结果为:埋深30 cm>埋深20 cm>埋深10 cm>埋深40 cm。

Abstract

The characteristics of alfalfa growth in the semi-arid sandy area for different buried depths of underground drip irrigation are studied.Effects of the buried depths on alfalfa planTheight

root collar diameter

branch number per plant

root length

weight density

and yield are investigated experimentally.Principal component analysis is used for comprehensive evaluation.Results show that the dropper installed at different depths affects the indexes of various alfalfa growth characteristics.In the seedling stage

the 10 cm laying depth treatment is conducive to alfalfa growth.From the branching period

the 30 cm laying depth treatment is superior to other treatments.T hroughout the growth period

the buried depths rank in the descendant order of 30

and 40 cm in terms of the comprehensive evaluation for the effects of different laying depths on alfalfa growth characteristics.

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