Onions are accepted as the most essential ingredient in the majority food recipes. They are rich flavonoids and antioxidants that protect human body from diseases like cancer and cardiovascular problems. Being an excellent source of Vitamin C they are easily grown vegetables. They can be grown with minimum maintenance in three different ways – seeds, sets and seedlings. The average time bulb onions take to grow efficiently is about three months. By late summer, July or early August, they are ready for best possible harvest.
With the help of hydroponics you can easily grow bulb onions in your house. Given below are a few tips to grow bulb onions hydroponically:
- You need 250 seeds per gram to begin the process of growing onions.
- The ideal space requirement is 0.5 cm (1/4”) and depth 1 cm (1/3”).
- The total time it takes for germination is about 10 days.
- The transplanting takes around 30-35 days.
- The final transplanting and harvesting time is about 80 days.
- The ideal pH level for the nutrient solutions to be used is 5.5 to 7.0.
- Maintain proper transplanting distance, i.e. distance between rows: 12 cm (5”) and between plants: 10 cm (4”).
It is advisable to harvest onions in the morning. Onions don’t need bright and hot environment on the day of harvest; therefore you should move your onions to the shady part of your yard to protect them from sunburn. You should dry the bulb onions thoroughly before storing them and don’t expose them to morning dews.
Ensure that the water level while growing bulb onions is lower in the tub or you can simply add nutrients in the tub where the roots can’t be damp. Bulb onions need good air ventilation otherwise they can get mildew from stale air. Remember, once bulb onions have matured, store them in an old orange or onion sack. You can hang them in a safe place where there is enough ventilation. With this you can grow bulb onions effortlessly and enjoy your meals!