ABSTRACT
Peat can be used on sandy arid lands that are not very conducive to cropping without soil conditioners. Viable research with humates can include interactions with other soil conditioners. A relatively new use of surfactants or wetting agents as soil conditioners is in bioremediation. Most uses of seaweed products are as biostimulants, but there are some claimed effects as soil conditioners. Composts, which can be effective soil conditioners, are claimed by some also to contain substances that have biostimulating effects, and this is especially claimed for composts containing seaweed products. Ammonium laureth sulfate has properties somewhere between those of water-soluble polymer soil conditioners and wetting agents. Both chemical and physical forces are involved, as iron chlorosis is preventable with soil conditioners. This volume cannot identify and describe all the substances that can be used as soil conditioners. More and more waste products are being used as soil conditioners.
