One of the most used plants in the kitchen are the onions, thanks to which exquisite dishes can be prepared. For the onion cultivation you don't need a lot of space in your garden, much less have a “green thumb”. As for all plants, preventive soil tillage is required, so let's see in detail how grow onions following some of our useful indications.
Onion cultivation, directions
- With the hoe, dig holes in the soil about 15 centimeters deep each, leaving a space of thirty centimeters between the different plants to allow them to develop properly.
- Spread a few leaves or plant remains on top of the topsoil: decomposing it will act as the first nourishment during germination
- After planting the seeds, start immediately to do the first watering of the plants twice a day
- Subsequently you will have to irrigate constantly without exceeding since the onion does not like too much humidity: irrigation should be done when the sun does not heat up very much, in the morning or at dusk
- Since onions require a good amount of potassium and phosphate but little nitrogen, use an organic type of plant fertilizer.
- A month before collecting them, when the onion it is in full development, pound the stems of the plant from the base without being afraid of them breaking: the effect you will get will be to see the onions grow more forcefully.
- When the onions have bulbs well swollen, fold the stems just above the bulb to facilitate ripening.
Attention: if during the growth the onions tend to bloom it is better to remove the stems while they are still "in bud".
Onion cultivation, collection
Harvesting is usually done at the end of June, if the seeds were planted in December, and in September if the planting was started in May.
Harvesting must be done when the leaves are completely yellowed and the plants almost dry. After having uprooted the plants, the bulbs should be left to dry well in the sun and then collected in braids. Finally they should be placed in a cool and dry place before consuming them.
Onion cultivation, parasites
Among the parasites that most affect the onion we find the onion moth and fly: they dig tunnels inside the bulb and also cause rot. Onions sown in spring are the most exposed, while those grown from bulbils seem to be exempt.