抄録
Effect of discharge inside bubble in water on growth rate of a vegetable was investigated experimentally for application on vegetable cultivation system. Brassica rapa var. perviridis was used as a specimen and was cultivated in pots filled with artificial soil. The water was circulated from a water pool to the cultivation pots. The discharge was produced out of the water in the pool during 30 minutes by one day. The growth rate of the Brassica rapa var. perviridis was improved drastically with discharge inside bubble in water. The growth rate increased with increasing duration of the Brassica rapa var. perviridis and was also improved by adding HNO3 ions into the circulation water. An inactivation of bacteria in the water was also confirmed with discharge inside bubble in water.