Water holding capacity of determined by measuring the weight of

Options

A. Soil by adding water and humus
B. Water saturated soil first weighed, heating the soil till it is dry and then weighing the soil
C. Soil by adding water, biomass and humus
D. Soil from different location with biomass.

Answer

To determine the water holding capacity of soil, follow these steps:

### Step-by-Step Solution:

1. **Saturate the Soil**: Start by taking a sample of the soil and saturating it with water. This means that you need to add enough water to ensure that the soil is fully soaked and no more water can be absorbed.

2. **Weigh the Saturated Soil**: After the soil has been saturated, weigh the sample. Record this weight as the "weight of saturated soil."

3. **Dry the Soil**: Next, you need to dry the soil completely. This can be done by heating the soil in an oven until all moisture has evaporated. Make sure that the soil is completely dry before proceeding to the next step.

4. **Weigh the Dry Soil**: Once the soil is completely dry, weigh it again. Record this weight as the "weight of dry soil."

5. **Calculate Water Holding Capacity**: The water holding capacity can be determined by subtracting the weight of the dry soil from the weight of the saturated soil. This difference gives you the amount of water that the soil can hold.

### Final Formula:
Water Holding Capacity = Weight of Saturated Soil - Weight of Dry Soil

### Conclusion:
From the above steps, you can conclude that the water holding capacity of soil is determined by measuring the weight of its saturated state and then the weight after it has been dried.

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