Polymers in Irrigation

Irrigation systems are categorized as flooding, soil surface spraying or sprinkling, and drip irrigation, which are all referred to in detail in the following  

Evaporation is the removal of free water from the soil surface, while evapotranspiration is the removal of water from plant leaves. The soil is a reservoir for water and chemical plant nutrients and provides a substrate to support the plants - water is removed from this soil reservoir by evaporation. The rate of water removal from the soil by plants and the amount of rainfall or irrigation water stored in the soil is determined by the type of plants, on plant spacing and yield, and general management criteria. For irrigation, the water-holding capacity and the rate of water removal by plants must be considered. 

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