Experiments wereconducted et the Acrculturet Research Station, Bhavanisagar to determine the critical period of wend free environment for POL 2 groundnut under irrigated conditions. It was found that no weeding is required beyond the sixth week of sowing, the first 40 per cent of growth period being the critical period of crop-weed competition. Pod vield increased progressively with increase in the weed-free regime upto six weeks beyond which there was no further increase. This increase was a reflection more of an increase in pod number than in any other viele constituent, It was also due to lesser weed count and dry matter under this
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