Abstract

                                Among the various means by which agricultural production can be stepped up, proper use of fertiliser is probably the pivot. In recent years, the use of chemical fertilisers has gained importance necessitating research on judicious and optimum use of fertiliser. The fertiliser - crop yield relationship expressed in the form of a mathematical function with the data obtained from trials conducted in experimental farms or cultivators' fields provides not only information on crop response to fertiliser but also enables us to specify optimum doses. Choice of suitable functional models for describing the fertiliser - crop yield relationship is therefore one of the important steps in fertiliser research. The object of this paper is to examine the suitability of different mathematical models for describing response of sugarcane to nitrogen.

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