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.
Generally, in a direct measurement method, the volumetric water content of a soil sample is evaluated on the basis of three measured quantities: (1) Ww, the wet weight of the soil sample; (2) Wd, the oven-dried weight of the sample; and, (3) Vt, the field volume or the. total volume of the sample.