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Water holding capacity of soil-

Field capacity or water holding capacity of soil may be soil defined as the amount of water retained by the soil particles after the excess amount of water has been drained off due to gravitational force. The water holding capacity is equal to the gravitational force. The water holding capacity is equal to the amount of water left in the wet soil when excess amount has been removed by a centrifugal force of 1000 x gravity. In fact the field capacity of represents the amount of both hygroscopic and capillary water present in soil. The amount of water held by soil depends upon total pore space in the soil and the supply of water to the soil. The soil contains the water in the interconnecting spaces, in capillaries, these capillary vary in size, angle and continuity and normally the clay soil has more water holding capacity, than sandy soil.