Title :
Study on the Number and Placement for Moisture Monitoring Sensor in Lettuce with Substrate Cultivation
Author :
Liu Zhigang ; Wang Jizhang ; Xu Yunfeng ; Li Pingping
Author_Institution :
Key Lab. of Modern Agric. Equip. & Technol., Jiangsu Univ., Zhenjiang, China
Abstract :
A continuous monitoring tests for substrate moisture content were carried out in different depths of lettuce field under drip irrigation in greenhouse. Based on the observation data of the moisture probes laid at fixed points, the correlationship between substrate water content in different depths were analyzed, a better method for installing water monitoring points in substrate profile under drip irrigation is selected by R type hierarchical clustering method. Comprehensive analysis the substrate physical properties and the activity root zone of lettuce showed that the moisture sensors buried in 5 and 15 cm for monitoring the substrate moisture content in the depths of 0~15 cm were reasonable.
Keywords :
agricultural engineering; crops; humidity sensors; irrigation; moisture measurement; statistical analysis; drip irrigation; greenhouse; hierarchical clustering method; lettuce; moisture monitoring sensors; substrate cultivation; substrate water content; water continuous monitoring tests; Automation; Manufacturing; Moisture Sensor; Sensor Placement; Substrate;
Conference_Titel :
Digital Manufacturing and Automation (ICDMA), 2013 Fourth International Conference on
Conference_Location :
Qingdao
DOI :
10.1109/ICDMA.2013.315
