I always find it difficult to weed in puddled muddy field. If the rice plants are planted in rows, then I used to use cono weeder. But now a days, planting in rows is not done. Some time back had got a push-pull hoe and started using in weeding in rice field. This looks to be relatively easy since standing at one place we can weed all the four sides so walking in the muddy field is reduced.
Push-pull hoe with long handle