Abstract

                                In increasing yield per acre, varieties and manures constitute the two major factors. The problem is a complex one and as such there is still some gap in our knowledge and also between the experimental results and ryots' field practico. From 1914 to 1950, there have been 38 exporiments in repre- sontativo sugarcane tracts of this State on manuring sugarcane. Of these, 16 were at Anakapalie, 8 at Samalkot, 8 at Palur and 6 at Gudiyattam. In spite of the large number of experiments laid out, the quantitative knowledge in respect of manuring the crop is not advanced very much. The results of experiments recorded year after year aro so vary- ing that conclusions based on three-year data have been of only qualitative value. Further, the results of these experiments were not tested in ryots' fields and therefore are not very helpful in extension service. It is therefore desirable to critically roview the manurial experiments, to detect the causes for the fluctuating results recorded and to explore the possibilities of better technique for future experiments.

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