PADDY RICE-RAISING SEEDLING CULTURE SOIL

摘要

The present invention relates to a paddy rice-raising seedling culture soil containing a water absorptive resin and a culture soil, wherein an elution amount (A) of the water absorptive resin into pure water and an elution amount (B) of the water absorptive resin into pure water after irradiating a mixture of the water absorptive resin and pure water having 50 times the mass thereof with ultraviolet rays having an integrated illuminance of 14.4 MJ/m² satisfy the following expression: elution amount (B)-elution amount (A)50 mass%.