Main content

Improving Greenhouse Irrigation Through A Sensor-Based Decision Support System

Show full item record

Title: Improving Greenhouse Irrigation Through A Sensor-Based Decision Support System
Author: Henderson, Scott
Department: School of Environmental Sciences
Program: Environmental Sciences
Advisor: Youbin, Zheng
Abstract: To automate greenhouse irrigation, microclimate variations of the greenhouse environment and plant water requirements must be understood. Variation in greenhouse microclimate was monitored and quantified using pan evaporation (Bosman, 1990). The growing substrate volumetric water content (VWC) and growth performance of two crops, basil (Ocimum basilicum 'Genovese Gigante') and bellflower (Campanula portenschlagiana ‘Get Mee’), were monitored. The variation was not significantly related to growth performance, indicating plants can tolerate a range of growing substrate VWC for acceptable growth performance. Thresholds of 0.25 m3·m-3 for basil and 0.15 m3·m-3 for bellflower were determined to be the optimal growing substrate VWC at which irrigation should occur. A decision support system (DSS) was designed to control irrigation of a crop of bellflower at a commercial greenhouse, alongside the grower’s crop. At the end of the production cycle, the plants managed by the DSS the same quality as those managed by the commercial grower.
Date: 2017-12
Terms of Use: All items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.

Files in this item

Files Size Format View Description
Henderson_Scott_201712_Msc.pdf 1.860Mb PDF View/Open Master's Thesis

This item appears in the following Collection(s)

Show full item record