Effective saturation is a measure of the extent to which the soil pores are filled with water. A soil with high effective saturation will have more water in its pores, while a soil with low effective saturation will have less water.
Comparing the results of A, B, and C, it is evident that the effective saturation increases from A to C. This indicates that the porosity of the soil increases and the drainage capacity decreases as we move from A to C.
At 30% effective saturation (A), the soil is relatively well-drained and has a lower water-holding capacity. This may be suitable for plants that do not require a lot of water or can tolerate drier conditions.
At 45% effective saturation (B), the soil has a moderate water-holding capacity and is suitable for a wider range of plants. However, it may not be ideal for plants that require well-drained soil.
At 60% effective saturation (C), the soil has high water-holding capacity and is suitable for plants that require a lot of water. However, it may not be well-drained and thus can lead to root rot for plants that are sensitive to waterlogging.
In conclusion, the effective saturation of the soil can have important implications for plant growth and health. It is important to select plants that are suitable for the soil's water-holding capacity and drainage capacity to ensure their optimal growth and development.