Explanation:

Ans. Field capacity 

Field capacity (Cc) corresponds to the superior limit of available water and represents the moisture of the soil after drainage of the water contained in the macropores by gravity action. This moisture condition favors higher absorption of water and nutrients by the plants.

Usually, field capacity is determined in the laboratory, by the retention curve method. In this method, the value of the field capacity moisture is represented by the balance moisture with tension of 6–33 kPa, depending on the texture, structure and content of organic matter in the soil.