Automated System that Monitors and Controls the pH and Electrical Conductivity of a Closed-Hydroponic Setup
Keywords:
Automated Closed Hydroponics, potential hydrogen-hydroxyl (pH), electrical conductivity (EC)Abstract
The Automated Closed Hydroponics System relates to a system that monitors the pH and electrical conductivity (EC) of the nutrient solution. It is constructed to modify and optimize the conventional hydroponic system as determined through its specific operational requirements to utilize the system safely and profitably. The modules are electronically integrated into the system that continuously monitors the pH level and the EC level of the nutrient solution and automatically adjusts its content to the proper range suitable for the plant used. The developed system lessens human involvement, and in turn, eliminates human error while keeping expenses at a minimum and ensuring yield at maximum. This article discusses the operation of the system which consists of the reservoirs for the dispensing of acid, base, nutrient solution, and water, with its necessary valves, motors, hose, and flow regulators; level sensors installed to the reservoirs to monitor the refilling requirement and operational conditions; pH monitoring and control; electrical conductivity (EC) monitoring and control; and, the nutrient uptake analysis to illustrate the plant nutritional status verifying that the plants were taking up the nutrient balance they require when the pH and EC are on their respective exact levels. The automation in the hydroponic system results in a more balanced culture, creating healthier and more homogeneous leaves.
References
Gabriel, A.G. Transparency and Accountability in Local Government: Levels of Commitment of Municipal. Asia Pacific Journal of Public Administration 39(3), July 2017, pp.217-223
Zaldy Commanda. “Baguio posts 1.7-million tourist arrivals in 2017.” Manila Bulletin, March 5, 2018.
PSA, 2016. “Highlights of the 2010 Census-Based Population Projections, Reference Number: 2016-090,” August 9, 2016.
Matuschke, I. “Rapid Urbanization and Food Security: Using food density maps to identify future food security hotspots.” International Association of Agricultural Economists. 2009 Conference, Beijing, China. August 16-22, 2009.
Lagomarsino, V., (2019, September 26). Hydroponics: The power of water to grow food, SITN, [On-line]. Special Edition: Water. Available: https://sitn.hms.harvard.edu/flash/2019/hydroponics-the-power-of-water-to-grow-food/. [September 2020].
Robbins, O., (2021, February 24). Hydroponics: How It Works, Benefits and Downsides, & How to Get Started, Food Revolution Network, [On-line], Available: https://foodrevolution.org/blog/hydroponics/. [2021].
Lincoln Taiz and Eduardo Zeiger, “Chapter 5: Mineral Nutrition.” Plant Physiology, 3rd ed., Sinauer Associates, Aug 30 2002, pp. 67-86; Epstein, E. (1972) Mineral Nutrition of Plants: Principles and Perspectives. Wiley, New York.
Lincoln Taiz and Eduardo Zeiger, “Chapter 12: Assimilation of Mineral Nutrients.” Plant Physiology, 3rd ed., Sinauer Associates, Aug 30 2002, pp. 259-282;
Junior,C.H., Rezende, R., Freitas, P.S.L., Gonçalves, A.C.A., Frizzone, J.A., 2008. Ciênciae Agrotecnologia 4, pp. 1142–1147.
D.S. Domingues, H.W. Takahashi, C.A.P. Camara, S.L. Nixdorf, (2012). Automated system developed to control pH and concentration of nutrient solution evaluated in hydroponic lettuce production, Computers and Electronics in Agriculture 84, [On-line] Available: www.elsevier.com. [September 2019]
Agung Putra P., Henry Yuliando, "Soilless Culture System to Support Water Use Efficiency and Product Quality: a Review," The 2014 International Conference on Agro-industry (ICoA): Competitive and sustainable Agro-industry for Human Welfare, 2014.
Christie, Emerson, "Water and Nutrient Reuse within Closed Hydroponic Systems" (2014). Electronic Theses and Dissertations. 1096. Available: https://digitalcommons.georgiasouthern.edu/etd. pp. 3, 16-17.
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