Pick out the odd one from the following words given in the box and give reason for it.
Plough, seed drill, hoe, chain pump, sickle
Seed drill
A seed drill is a modern mechanical method of sowing seeds using a tractor. Whereas the rest implements like a plough, hoe, chain pump and sickle are traditional tools used in agriculture for loosening or tilling the soil, removing weeds, irrigation, and harvesting.