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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