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Synopsis Notwithstanding the availability of a number of modern books, this classic work still remains an important reference source for the farmers as well as students and teachers of agriculture. Going away from the traditional style of explaining the origin and composition of fertilizers and manures, the author describes lucidly their mode of action and their relation to particular crops and soils. Enriched with tables of scientific data, the text covers the need, sources, functions, uses and also a comparative analysis various fertilizers and manures—Nitrogenous, Phosphatic and Potassic. Also discussed is the use of waste organic compounds as manures, the requirement of trace elements for plant nutrition, use of farmyard manure and the role of materials having lesser direct fertilizing value. On the whole, it is a unique book on the applied aspect of fertilizers and manures, telling how to adjust them to particular soil and particular style of farming.