| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for nutriculture of liquid supply control, with which a liquid supply is controlled based on the amount of solar radiation. <P>SOLUTION: A medium having ≥150 liters/m<SP>3</SP>readily effective water content, ≥50 liters/m<SP>3</SP>hardly effective water content, ≥20 cmols/kg cation exchange capacity and high physical/chemical buffer power is used as the medium. The liquid supply amount of a culture liquid per plant individual is adjusted to an amount to be supplied to 1 MJ/m<SP>2</SP>integral solar radiation, the waste liquid ratio of the culture liquid discharged to the outside of a culture system is adjusted to ≤15% of the liquid supply amount and the liquid supply is controlled to extremely efficiently and excellently cultivate a plant. <P>COPYRIGHT: (C)2004,JPO |
