Can onions be grown hydroponically? How to grow onions hydroponically

Can onions be grown hydroponically?

Onions can be grown hydroponically, and the method is simple. When growing hydroponically, choose suitable onion segments, then change the water frequently and add nutrient solution. The operation process is simple. You can also choose soil culture. The nutrients in the soil are comprehensive, which is conducive to the growth of the roots of onions. In comparison, growing onions is more suitable for soil culture.

Green onion hydroponic culture method

1. Water quality selection

   When growing onions hydroponically, the key lies in the choice of water quality. Rainwater or river water is the most appropriate because they contain more minerals. Tap water cannot be used because a large amount of minerals will be lost after filtering.

2. Root treatment

   When growing onions hydroponically, after selecting the right water quality, you need to process the roots of the onions. Cut the roots and the green parts of the stems and leaves, tie them together with a rubber band or rope, and place them in a transparent glass bottle container.

Precautions for growing onions in water

1. Add nutrient solution: During the hydroponic culture of onions, nutrient solution needs to be added every 3 days or so to replenish nutrients. At the same time, the amount of water should be enough to cover half of the onions.

2. Diffused light and ventilation: During the hydroponic culture of onions, they need to be placed in a place with diffused light and ventilation, because sufficient sunlight is conducive to the growth of roots, and maintaining a ventilated environment can avoid pests.