id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
american_scientific_journal-7137	Mabitazan, Ma-Clarissa; Mabitazan, Raul	Automated System that Monitors and Controls the pH and Electrical Conductivity of a Closed-Hydroponic Setup	2021	19	.pdf	application/pdf	7170	297	45	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 important aspect to the hydroponic techniques is that the exact formulation should be checked to allow an estimation of the amounts of nutrient solution to be added and the level of EC and the pH values of the resulting nutrient solution should be monitored.	cache/american_scientific_journal-7137.pdf	txt/american_scientific_journal-7137.txt