ISWC OpenIR  > 水保所知识产出(1956---)
温度对施肥滴灌系统滴头堵塞的影响
刘璐1; 李康勇2; 牛文全1,2; 李元1; 许健1
2016
Source Publication农业机械学报
Volume47Issue:2Pages:98-104
Abstract

为探究不同灌水温度下水肥一体化滴灌滴头堵塞成因与过程,采用固定周期间歇滴灌的多因素完全随机试
验设计方法,分别在冬、夏两个季节研究了3 种不同泥沙级配浑水与3 个不同施肥质量浓度组合对滴头堵塞的影
响和堵塞变化过程。结果表明,灌水温度是影响滴头堵塞的重要因素,与水质交互耦合效应显著,夏季施肥和未施
肥2 种情况下灌溉滴头的抗堵塞性能均高于冬季,夏季有效灌水次数是冬季的1. 26 ~ 1. 43 倍; 施肥加速滴头堵塞
的作用受泥沙级配和灌水温度的影响,冬季灌溉水中0. 034 ~ 0. 1 mm 粒径粗颗粒含量越多,施肥质量浓度对堵塞
的影响越敏感,夏季灌溉水中0 ~ 0. 034 mm 细颗粒越多,施肥质量浓度对堵塞的影响越敏感。建议灌水温度较低
时,水肥一体化滴灌应控制在较低的施肥质量浓度下灌溉,适当增大次灌水时间,减少灌溉次数。

Other Abstract

Fertilizers injected into the drip irrigation system may contribute to serious clogging,which
occurs due to multiple factors,including water quality,water condition,hydraulic parameters and system
design. To better understand the causes and process of emitter clogging of fertigation at different irrigation
water temperature levels,laboratory experiments were conducted to investigate the effects of irrigationwhen the temperature stays low,and the fertilizer concentration can be controlled at a low level when
irrigation is applied with fertilizer.
water temperature on the sensitivity of emitter clogging. Three different particle gradations and three
different fertilizer concentrations were investigated through the intermittent drip irrigation method in
summer and winter,respectively. Experiment results showed that the temperature of irrigation water was
an important factor causing clogging with remarkable coupling effect with water quality. The anti-clogging
performance of emitter in summer was always better than that in winter for both scenarios of fertilization
and no fertilization. The acceleration of drip clogging with fertilization was affected by the sediment
gradation and the season. When the content of sediment particles ( with diameter of 0. 034 ~ 0. 1 mm)
became high,the fertilizer concentration could be more sensitive to clogging in winter than that in
summer. The fertilizer concentration became more sensitive to clogging when the content of sediment
particles ( with diameter of 0 ~ 0. 034 mm) were high in summer than that in winter. The number of
effective irrigation frequency in summer was 1. 26 ~ 1. 43 times as much as it was in winter. However,
the irrigation water temperature could not change its effect on clogging caused by sediment gradation and
fertilization concentration. Therefore,it is recommended that the irrigation frequency can be reduced

Keyword滴头 堵塞 温度 施肥质量浓度 泥沙级配
Indexed By中文核心期刊要目总览
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8696
Collection水保所知识产出(1956---)
Affiliation1.西北农林科技大学水土保持研究所
2.西北农林科技大学水利与建筑工程学院
Recommended Citation
GB/T 7714
刘璐,李康勇,牛文全,等. 温度对施肥滴灌系统滴头堵塞的影响[J]. 农业机械学报,2016,47(2):98-104.
APA 刘璐,李康勇,牛文全,李元,&许健.(2016).温度对施肥滴灌系统滴头堵塞的影响.农业机械学报,47(2),98-104.
MLA 刘璐,et al."温度对施肥滴灌系统滴头堵塞的影响".农业机械学报 47.2(2016):98-104.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[刘璐]'s Articles
[李康勇]'s Articles
[牛文全]'s Articles
Baidu academic
Similar articles in Baidu academic
[刘璐]'s Articles
[李康勇]'s Articles
[牛文全]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[刘璐]'s Articles
[李康勇]'s Articles
[牛文全]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.