Capillary Water

Capillary water refers to the water in the soil that is available for plants to uptake. It is the water held in the soil pores against the force of gravity and is stored in the capillary spaces between soil particles. This water is accessible to plant roots and is vital for plant growth and development.

Field Capacity Water

Field capacity water is the maximum amount of water that the soil can hold against gravity after excess water has drained away. It represents the water content of the soil after it has been thoroughly wetted and allowed to drain freely due to the force of gravity. Field capacity water is not immediately available for plant uptake as it requires the force of gravity to drain.

Hygroscopic Water

Hygroscopic water refers to the water molecules that are tightly held to the soil particles in thin films. It is strongly attracted to the soil surface and is not available for plant uptake. This water is held so tightly that plants cannot extract it and it is considered as unavailable water for plant growth.

Explanation

The water which can be utilized by the crops from the soil is called capillary water. Capillary water is the water that is retained in the soil against the force of gravity and is available for plant roots to absorb. It is held in the capillary spaces between soil particles and provides the necessary moisture for plant growth.

Field capacity water, on the other hand, is the maximum amount of water that the soil can hold after excess water has drained away. It represents the water content of the soil after the force of gravity has drained it. This water is not immediately available for plant uptake as it requires the force of gravity to drain.

Hygroscopic water is tightly held to the soil particles and is not available for plant uptake. It is strongly attracted to the soil surface and is considered as unavailable water for plant growth.

Therefore, the correct answer is option 'B' - capillary water, as it is the water that can be utilized by crops from the soil.