The ICEID or International Conference on Emerging Infectious Diseases is a conference for public health professionals on the subject of emerging infectious diseases. The International Conference on Emerging Infectious Diseases was first convened in 1998; ICEID 2006 marks its fifth occurrence.
Clay type, organic content, and soil structure also influence soil water retention. The maximum amount of water that a given soil can retain is called field capacity, whereas a soil so dry that plants cannot liberate the remaining moisture from the soil particles is said to be at wilting point.
field capacity the water content of a soil at the upper limit of the available soil water range it is the amount of water remaining in a soil after the soil has been saturated and allowed to drain for approximately 24 hourspermanent wilting point the lower limit of the available soil water rangeigures 3 3 and 3 4 illustrate how water is held in soils the capillary action or tension which holds water in the soil is most important to plant growth smaller pores hold water with more tension negative pressure than larger pores as soil dries the tension of the remaining water increases