NUTRIENT CIRCULATION SYSTEM, SOIL CONDITIONER, AND NUTRIENT CIRCULATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide nutrient circulation systems capable of efficiently utilizing nutrients.;SOLUTION: A nutrient circulation system 1 has a field 10, an underdrain 20 laid under the field 10, a water source 30 for storing drainage from the underdrain 20, a water supply device 40 for pumping up the drainage from the water source 30, a microbubble generator 42 for generating microbubbles in the drainage pumped up by the water supply device 40, the water supply device 40 returning the drainage containing the microbubbles generated by the microbubble generator 42, to the field 10.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2018,JPO&INPIT