The best soil for successful onion cultivation is deep, friable loam and alluvial soils with good drainage, moisture holding capacity and sufficient organic matter but onion can be grown in all types of soils such as sandy loam, clay loam, silt loam and heavy soils . The bulbs produced may be deformed in heavy soil. with application of organic manure prior to planting onion crop can be grown successfully on heavy soil and preparation of the field for onion cultivation should be very good. The optimum pH range is 6.0 – 7.5 for all soils, but onion can also be grown in mild alkaline soils. Onion crop is more sensitive to highly acidic, alkali and saline soils and water logging condition. Onions do not survive in soils having pH below 6.0 because of trace element deficiencies.
Which kind of soil is preferred for cultivation of onion?