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日光温室中自流式低压滴灌技术的研究

苏德荣, 田媛, 高前兆

苏德荣, 田媛, 高前兆. 日光温室中自流式低压滴灌技术的研究[J]. 农业工程学报, 2000, 16(3): 73-76.
引用本文: 苏德荣, 田媛, 高前兆. 日光温室中自流式低压滴灌技术的研究[J]. 农业工程学报, 2000, 16(3): 73-76.
Su Derong, Tian Yuan, Gao Qianzhao. Application of Gravity and Low Head Drip Irrigation Techniques in Solar Greenhouses[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2000, 16(3): 73-76.
Citation: Su Derong, Tian Yuan, Gao Qianzhao. Application of Gravity and Low Head Drip Irrigation Techniques in Solar Greenhouses[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2000, 16(3): 73-76.

日光温室中自流式低压滴灌技术的研究

Application of Gravity and Low Head Drip Irrigation Techniques in Solar Greenhouses

  • 摘要: 文章给出了自流式低压滴灌系统的灌水量与灌水延续时间的关系。对日光温室经常采用的2种灌水毛管及滴头的试验结果表明,低水头条件下滴头流量对压力降低较为敏感,随着压力的减少流量会显著降低。但是,滴头流量减少仅仅延长了灌水时间,对毛管灌水均匀度的影响并不显著。
    Abstract: This paper summarized the experiences of using simple gravity drip irrigation techniques by farmers and proposed a variable and low-head drip irrigation system for reducing irrigation cost and improving irrigation efficiency in Chinese-style lean solar greenhouses. The relationship between water application and dripping time was presented for the system. Two kinds of drip discharge experiments under the low-head conditions showed that the emitter discharge is much more sensitive to low pressure than high-pressure. With decreasing pressure the discharge is evidently reducing. However, decreasing discharge only results in extending the dripping time instead of influencing water application uniformity.
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出版历程
  • 收稿日期:  1999-12-25
  • 发布日期:  2000-05-30

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