Now Onion is in the News ! ..
Onion [ Allium cepa ] family Alliaceae is one of the most important commercial vegetables. It is grown in western, northern as well as in southern India. Maharashtra, Gujarat, Uttar Pradesh, Orissa, Karnataka, Tamilnadu, Madhya Pradesh, Andhra Pradesh and Bihar are Major onion growing states in India.
India stands 2nd position in Onion production after China in the World. In India, Gujarat stands 2nd position in Onion cultivation after Maharashtra state. The productivity of Onion is 12580kg/Ha all over the India while In Gujarat state, the productivity is highest [ 22120 kg/ha ] .
Onion is a cool season crop. However it can be grown under a wide range of climatic conditions. It grows well under mild climate without extreme heat or cold or excessive rainfall. In areas where average annual rainfall exceeds 75-100 cm in the monsoon periods, it can be grown only as a summer crop.
The ideal temperature requirement of the onion crop is 12.8-21 C for growth development and 15.5-25 C for bulb development. Very low temperature in the early stages favors bolting, where as sudden rise in temperature favour early maturity in Rabi, resulting in small –sized bulbs.
Onion can be grown on all type of soils. However, Goradu, and medium black soils are best for its successful production. Good drainage, weeds free plots and presence of organic matter favor production of good crop. It cannot be grown in alkaline or low-lying marshy lands. The optimum pH is 5.8-6.5.Here is how you can do it