Excerpt from Soil Alkali: Its Origin, Nature, and Treatment
The study of soil alkali is by no means simple, nor have all the problems relating to it been solved. The many different salts involved, each with its own properties; the various types of soils in which these salts occur, all with different textures and composition; the complex relations between the soluble salts of the soil and the plants growing on it; and the several economic factors involved in the reclamation of alkali land: these and numerous other considerations make the problems connected with soil alkali as difficult to solve as any found in agricultural science.
The excuse for writing a book on a problem that is so far from solution is found in the great demand that exists for one volume containing the important information concerning alkali. At present, the literature of the subject is very much scattered and is largely unavailable to the average student of soils.
There are hundreds of millions of acres of land in the world that are at present not used for agriculture but which might become productive if the alkali could be eliminated. The need for more land to supply food for the world"s increasing population is making a very insistent demand that some of these alkali lands be made available. The response to this demand will depend on a better understanding of the nature of alkali and methods of reclaiming land impregnated with it. This accounts for the new interest that is being shown in the study of soil alkali.
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