How field preparation is done for groundnut cultivation?

Although the groundnut is a deep-rooted crop, but looking to its underground pod forming habit, deep ploughing should be avoided, because it encourages development of pods in deeper layers of soil which makes harvesting difficult. Adequate rains at sowing are necessary for proper germination and good plant growth and well-distributed rainfall during the crop period ensures normal vegetative growth, increased flowering and proper development of pods. One ploughing with soil turning plough followed by two harrowing would be sufficient to achieve a good surface tilth up to 12-18 cm depth.