Question

What is true for the water available in the soil?

• A. Hollard = Chresard + Echard
• B. Hollard = Chresard Echard
• C. Chresard = Hollard + Echard
• D. Echard = Hollard + Chresard

Answer 1

The correct option is A Hollard = Chresard + Echard

Amount of water not available to plants is called as echard. It includes hygroscopic water and chemically bound water.

Water present in the capillary spaces between soil particles is available to plants and is called as chresard.

Whole water content of a field is called as hollard. It includes gravitational and surface run off water, chresard and echard water.