The commercial needs of large retailers increasingly require healthy onions, with a good and uniform size. These objectives can be easily achieved through the use of a drip irrigation system.
Although onion cultivation can be widely adapted to different environmental conditions, meeting water needs is an essential production factor both in terms of quantity and quality. In short, low water availability leads to lower production; on the contrary, an excess of water constitutes a waste of resources, favours a greater susceptibility to parasitic attacks and reduces the shelf life of the bulb.
Drip irrigation is therefore fundamentally important both for spring crops, to counter dry periods and ensure the development of a good size, and for autumn sowing crops, whose germination cannot otherwise be guaranteed.