|Title:||Yield prediction of hydroponic grown lettuce base on nutrient uptake in plant factory||Authors:||Shih-Wei Kong
|Keywords:||nutrient uptake;plant factory;yield prediction;lettuce;hydroponics||Issue Date:||Dec-2018||Publisher:||農業試驗所||Start page/Pages:||125-132||Source:||農業試驗所特刊第214號||Conference:||產業現況及研究發展國際設施研討會論文專刊||Abstract:||
The purpose of this study was to develop a yield prediction model by measuring amount of nutrient uptake in plant factory for hydroponically grown lettuce. An automated system was developed to control pH and Electrical Conductivity (EC) of nutrient solution and measuring the amount of nutrient absorbed. The integral nutrient uptake in full day, light period and dark period were compared with fresh mass of lettuce after harvested. The result shown the integral nutrient uptake in full day had best linear relationship (R2: 0.95) with the fresh mass harvested. This system can predict the fresh mass of lettuce harvested after 3 days of pure water treatment for nitrate control, and can also be used as early warning mechanism when the nutrient absorbed are low compare with normal conditions.
|Appears in Collections:||農業工程組|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.