Soil diagnosis and improvement method

摘要

Disclosed are a soil diagnosis method for diagnosing soil using a cycle activity indicator which is calculated using the following factors (I) to (III): (I) the ammonia reduction rate in target soil; (II) the activity of forming phosphoric acid from phytic acid in the target soil; and (III) the activity of forming potassium from compost in the target soil, and (IV) the soil bacteria count in the soil; and a soil quality control method; and a soil improvement method.

主权项

1. A soil improvement method comprising:
obtaining soil; measuring the following (I) to (IV):
(I) an ammonia reduction rate in the soil based on an indophenol method, a leaching method using potassium chloride, or high-performance liquid chromatography;(II) an activity of forming phosphoric acid from phytic acid in the soil based on a molybdenum blue method or high-performance liquid chromatography; and(III) an activity of forming potassium from compost in the soil based on atomic absorption spectrophotometry or ICP-MS, and(IV) a soil bacteria count in soil based on a measurement value found by a method of eluting DNA present in a sample taken from the target soil for diagnosis and determining the amount of the DNA; and diagnosing a problem with a cycle activity indicator which is calculated using (I) to (III), and a problem with (IV) the soil bacteria count in soil; and performing treatment for improving the cycle activity indicator in accordance with a result of the diagnosis, wherein the treatment on the soil is selected from the group consisting of administration of fertilizer containing one or more of nitrogen, phosphorus, and potassium, administration of nutrient components for activating soil microorganism, and administration of microorganisms having cycle activities of one or more of nitrogen, phosphorus, and potassium.