| 杜立鹏，张新燕.低压下加肥对迷宫滴头流量及灌水均匀度的影响[J].干旱地区农业研究,2015,33(1):142~145 |
| 低压下加肥对迷宫滴头流量及灌水均匀度的影响 |
| Influence of injected fertilization under low pressure on dripper discharge and uniformity coefficient |
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| DOI：10.16302/j.cnki.1000-7601.2015.01.023 |
| 中文关键词: 滴灌带 滴头流量 灌水均匀度 堵塞 |
| 英文关键词:drip irrigation tape dripper discharge uniformity coefficient blockage |
| 基金项目:“十二五”国家科技支撑计划“微灌工程系统集成与配套设备开发”项目（2011BAD29B02） |
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| 中文摘要: |
| 针对滴灌中侧翼迷宫式滴灌带的流量、灌水均匀度、肥料堵塞等问题，对4种不同规格的侧翼迷宫滴灌带进行试验，测定在清水和加肥灌水时滴头的流量及灌水均匀度。结果表明：加肥灌水时滴头流量比清水时减少，灌水均匀系数也较清水减小，4种不同结构滴头的灌水均匀度系数减小了5%～9.9%；随着灌水间隔增长，灌水次数增加，由于溶解在水中化学肥料结晶析出造成的堵塞程度逐渐增加；迷宫流道结构不同滴头的化学堵塞程度也不同。 |
| 英文摘要: |
| To address the concerns about dripper discharge, uniformity coefficient, and blockage of flanking labyrinth drip tape, a series of experiments were carried out to test the effects of clear water and fertilizer water on the uniformity coefficient and blockage of the dripper discharge. The results showed that dripper discharge became less with the injection of fertilizer water than clear water, as well as the uniformity coefficient, which was reduced by 5%～9% in four drippers with different structures. With the increases of irrigation time intervals and frequencies, the blockage degree of drip irrigation will increase due to the crystallization of chemicals in water. Different structures of the drip irrigation tape had different effects on the degree of blockage. |
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