Abstract

                                Cyperus rotundus is a pernicious weed which smothers the growth of crop plants in badly infested fields, specially during the seedling stages of the crop. If the growth of the weed could be arrested by some chemical or agronomic method there will be less competition in the field, and the crop will be able to come up better. The local mothod of getting rid of this weed is to work the Guntaka or blade harrow in the fields after the receipt of showers during the fallow period or work the country plough before the crop is sown. When the crop is on, the weeds are removed once or twice by means of chisel hoes, engaging human labour.

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