Source: Potato production handbook By NPCK https://npck.org/Books/PotatoProductionHandbook2019(002).pdf
Potato can be grown in a wide range of soil types but well-drained loamy to sandy loam soil is the most recommended. It also grows well with adequate fertilization even in sandy soils. Black soils that have undesirable physical and chemical qualities should be avoided. The pH should range between 5.0 and 7.0 but the ideal pH should be 5.5. The soil should be deep, light, loose and well drained but able to retain moisture. It should also be free from pests and diseases such as bacterial wilt, nematodes and blight. Blight requires a living host to survive between seasons. Partially decomposed tubers, which give rise to plants known as ‘volunteers’, infected with late blight, are a major source of blight infestation in subsequent potato crops. Poultry can be used to remove the partially decomposed tubers from the field after the crop has been harvested.