Study on Plant Growth and Nutrient Uptake under Different Aeration Intensity in Hydroponics with the Application of Particle Image Velocimetry

Aeration is considered beneficial for hydroponics. However, little information available on the effects of aeration, and even less solutions that use bubble flow their agronomic effects. In this study, aeration intensity plants were studied through cultivation experiments field visualization. It was found growth did not increase linearly with an in intensity. From results when within low range (0.07–0.15 L·L?1 NS·min?1), increasing increased plant growth. after reached a certain extent (0.15–1.18 some indicators change significantly. When continued to (1.18–2.35 began decrease. These show dissolved oxygen promoting growth, rule “the higher intensity, better”. There reasonable which crops grow normally rapidly. addition, means energy utilization operating costs. actual hydroponics production, it very important find range.