The present investigation was carried out to study the pattern of variability of five soil parameters simultaneously across the villages and to group the villages having same pattern by considering data of villages in eleven different talukas of Panchamahal district. The data on five soil parameters viz....

In long-term experiments on fertilizer nutrients and manures, the original data are of zig-zag in nature and there is a need to apply trend-fitting techniques to develop smooth trends to enable interpretation of the data in a better way. Very few attempts have been made in this direction....