Page 21 - soil-plant-water relationship and water requirement
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SOIL-PLANT-WATER RELATIONSHIP AND WATER REQUIREMENT























                                               Figure 2.2.3-1: Drainage Lysimeter Diagram

                               Weighing Type Lysimeter:

                               It provides a more precise estimate of ET and can measure ET for a short
                               amount of time. It calculates the water balances, which include the amount
                               of water given to the soil, the amount of water retained by the soil, and the
                               amount  of  water  lost  through  all  sources,  including  evaporation,
                               transpiration, and deep percolation.

                               Effective rainfall is also measured. Therefore weighing type lysimeter are the
                               most direct and accurate instrument for the determination of E.T.






















                                               Figure 2.2.3-2: Weighing  Lysimeter Diagram











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