ABSTRACT
Several reasons exist concerning the urgent need for soil improvement. The well being of the world does depend very much upon how the soil is maintained. The present generation is just starting to appreciate this fact. Soil is usually subject to severe problems that require the use of various soil conditioners to keep it tillable, fertile, and chemically and biologically healthy, and also to prevent its loss to various kinds of erosion. In many ways, intelligent use of soil conditioners can help reach these goals. The physical and biological properties of soil are undoubtedly as important as the nutritional properties, which are mostly but not entirely in the realms of inorganic chemistry but with involvement of biological cycles. In a natural ecosystem, energy and nutrient flow are relatively stable and self-regulating. Acid rain has been a widely recognized and publicized means of soil pollution.
