Agricultural colloids pesticide

Table 13.3 provides some examples of agricultural colloids. Beyond foods and the processing of agricultural products into foods, as covered in the previous sections of this chapter, there is a range of crop-protection products. These include pesticides and foam blankets. There are several books and reviews related to agricultural colloids [861-864],... 

Colloidal-mediated transport of contaminants into the subsurface is illustrated by the behavior of heavy metals and organic pesticides that originate from agricultural practices. 

The colloidal materials in soil also protect plants against many of the numerous pesticides that are now in common use in agriculture Mader, 1959). Only rarely do these materials, at the rates commonly used, cause injury to crops. But as the colloid content of soils decreases the possibility of injury increases. Humus is especially effective in protection against insecticide residues that contain copper. It has been shown repeatedly that where pesticides are applied directly to soils the effective dose increases markedly as the colloid content of the soil increases. This shows how effective colloids are in inactivating toxic materials. The literature is covered rather fully by Bailey and White (1964). 

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