农业装备与车辆工程2025，Vol.63Issue(10)：9-18,10.DOI:10.3969/j.issn.1673-3142.2025.10.002
弥雾灌溉参数对设施微环境及生菜生长的影响
The influence of mist irrigation parameters on facility microenvironment and lettuce growth
摘要
Abstract
At present,systematic studies on the impact of mist irrigation on the microenvironment of protected facilities are still relatively lacking,and in particular,the quantitative relationship between irrigation parameters and key microenvironmental factors is not yet clear.To address this,the regulatory effects of micro-sprinklers with different orifice diameters(0.85 mm,1.00 mm,1.20 mm,1.40 mm)on microenvironmental factors such as air temperature,relative humidity,and light intensity inside the facilities under two irrigation frequencies(10 s of irrigation followed by 60 s of pause;20 s of irrigation followed by 120 s of pause)were explored through experiments.The results showed that the flow rate of the micro-sprinklers increased with the increase of water supply pressure and orifice diameter.Among them,the flow rate of the sprinkler with a 0.85 mm orifice diameter was less sensitive to pressure changes,and its average flow rate was 442.75 mL/min.The orifice diameter of the sprinkler and irrigation frequency jointly affected the microenvironment inside the facilities.The combination of a 0.85 mm orifice diameter and the"10 s of irrigation+60 s of pause"mode could effectively extend the duration of temperature reduction and humidity increase.After 30 minutes of irrigation,the temperature was 22%to 30%lower than that of the control group.A study conducted with lettuce as the research object further showed that compared with conventional irrigation,mist irrigation could optimize the microenvironment of protected facilities more effectively and promote crop growth.This research provided a theoretical basis and key parameter support for the practical application of mist irrigation in the precise regulation of the protected facility environment.关键词
弥雾灌溉/灌溉参数/设施微环境/生菜Key words
mist irrigation/irrigation parameters/facility microenvironment/lettuce分类
农业科技引用本文复制引用
张文东,王嘉怡,褚幼晖,王娟,田小萍,何青海,郭洪恩..弥雾灌溉参数对设施微环境及生菜生长的影响[J].农业装备与车辆工程,2025,63(10):9-18,10.基金项目
中央引导地方资金项目(YDZX2023017) （YDZX2023017）
山东省蔬菜产业技术体系(SDARS-05) （SDARS-05）
山东省农业科学院农业科技创新工程(CXGC2024D17) （CXGC2024D17）
