Exploring the Best Environmental Conditions for the Growth of Butterhead Lettuce in a Closed System

Agricultural productivity is one of the key drivers to improve agricultural industry in Thailand. The productivity is determined by various environmental factors including soil, weather, and water supply. Thus, to improve productivity, the optimized values of these factors must be specified. The objective of this paper is to explore the best environmental conditions for the growth of butterhead lettuce in a closed system. The closed hydroponic system was set up and various types of sensors were installed. The conditions of the system were monitored and recorded. After a 21-day period of growing butterhead lettuce, the data were analyzed in order to develop a prediction model. The insight and result of environmental effect is based on the current situation. Not only it could be used for effective productivity, but also does it for further improvement.