The document summarizes a seminar on evaluating the performance of different weeders in cotton. It introduces the objectives to evaluate hand khurpi, peg type dry land weeder, animal drawn blade hoe, and power weeder. Field tests were conducted to determine parameters like theoretical and effective field capacity, field efficiency, weeding index, soil properties, and cost. The results found the animal drawn blade hoe had the highest field capacity and lowest cost per hectare, providing the highest savings in both cost and time compared to manual weeding. The hand khurpi was the least effective with the highest man-hours and operation costs.