The challenge for onion growers
Onion is a shallow-rooted crop and therefore does not use all the soil nutrients. Even then, leaching of nutrients to the deeper zone takes place. This refers to maintaining the availability of soil and moisture within the shallow root area. Onions are known to be surviving under tough drought conditions. But, water forms a critical element required in adequate quantities for onion crop growth, yield, and quality. Particularly in drought conditions, onions might split or form double or multiple bulbs. Besides, lack of sufficient knowledge, adequate nutrition, and plant protection management are other challenges that confront onion cultivators.