Author(s): PRADYUT CHANDRA, R. C. SAMUi AND SANJOY KUMAR BORDOLUP

Abstract: A field experiment was conducted in the summer and rainy seasons of 2002 at the Central Research Farm, Gayeshpur, Bidhan Chandra Krishi Viswavidyalaya under New Alluvial Zone of West Bengal to study the effect of application of four levels of potassium (0, 60, 120 & 180 kg K.iO/ha) on gtowth, yield attributes and yield of seven cultivars of groundnut. Results revealed that vegetative growth was higher during rainy season than that in the summer season but the later out yielded the former because all yield attributing characters like pods/plant, l 00-kemel weight and shelling percentage were higher in summer. Among the cultivars, ICGS-49 gave highest pod yield (1964. l kg/ha) and kernel yield (1361.1 kg/ha). Application ofpotassium@l80 kg K.iO!ha gave highest yield but were statistically at par with 120 kg K20/ha or even 60 kg K,Q/ha .However, its economic dose was 96.3 kg K.iO/ha.

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