I. Burning of trash II. Slashing of undergrowth III. Seed bed preparation IV. Soil tillage. Which of the following options gives the correct sequence of lan...

The correct sequence of land preparation for planting yam is option II, I, IV, and III, which is "slashing of undergrowth, burning of trash, soil tillage, and seed bed preparation" respectively. Slashing of undergrowth is done to clear the farm of any unwanted plant debris or weeds that could interfere with the growth of yam. Burning of trash is done to further clear the farm and also to provide the soil with some nutrients from the ashes. Soil tillage is done to loosen the soil and make it easier for the yam to penetrate and spread its roots. Seed bed preparation is done to create mounds or ridges where the yam can be planted, as well as to create spaces for applying fertilizers or mulch.