土壌の荷電特性の違いがミニトマトの養分吸収に与える影響

概要

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In plant cultivation, nutrient retention is associated with variable and permanent charges in the soil. In this study, we cultivated mini tomato plants in 2 types of soil and investigated the absorption of nutrients in these plants. Andosols have a variable charge, whereas Fluvisols have a permanent charge. Our results showed that in plants grown in Andosols, the nitrogen content of plants varied with soil (pH=5.3, 5.8, 6.3, and 6.8) and was 3.48%, 2.83%, 2.44%, and 2.90%, respectively. The potassium content of plants grown at soil pH=5.3, 5.8, 6.3, and 6.8 was 4.34%, 5.08%, 3.86%, and 4.89%, respectively. For plants grown in Fluvisols, the nitrogen content in all plants was approximately 2.00%. The potassium content in all plants was approximately 3.00%. Therefore, we suggest that soil with a variable charge affects nutrition absorption in mini tomatoes in a manner depending on the soil pH.