| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for simply and quickly diagnosing soil, while conventionally a chemical diagnose method of analyzing cation exchange capacity, a phosphoric acid-absorbing coefficient, a pH, a nutrient content and the like in the soil, and a physical diagnose method of analyzing a hardness of soil, a porosity, water retention and the like are known as a scientific method for diagnosing soil; however, as these methods of diagnose are limited to one aspect evaluation of the properties of the soil, it has been necessary to use a plurality of soil diagnose methods in parallel for a more multi-aspect diagnose.SOLUTION: To provide a method for diagnosing soil by a biological method utilizing microorganisms living in the soil of a diagnostic target, the method measuring a soil degree for growing crops, comprising: (b) a sample preparing step for preparing a suspension of soil to be measured as a microbial sample; (c) a dropping step for dropping the suspension of the prepared microbial sample onto a plurality of nutrients at least parts of which have different consumption rates depending on the microbial species; and (d) an observation step for observing the accumulated consumption amount of each nutrient by the microorganisms after the dropping. |
