**Part 6**

**New Technologies** 

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**8** 

*Spain* 

**Sustentable Use of the Wetting Agents** 

The wetting agents in agriculture are materials that are classified within a larger group identified as adjunvants (Cahn and Lynn, 2000; Hazen, 2000; Kosswig, 2000; Thacker, 2003; Young, 2003; Lynn y Bory, 2005). According to their chemical nature, adjuvants are grouped into four families: surfactants, oils, inorganic salts and non-traditional adjuvants (figure 1). Nowdays some of the wetting agentes can be considered inside of called Green Chemistry

Fig. 1. Classification of adjunvants according to their chemical nature and function

**1. Introduction** 

(Carrasco and Urrestarazu, 2010).

**in Protected Horticulture** 

Carlos Guillén and Miguel Urrestarazu

*Universidad of Almería,* 
