How to propagate onions in hydroponics
This article provides an explanation of how to propagate onions hydroponically, specifically addressing green plant and flower cultivation methods as follows:
How to propagate onions in hydroponics
Place the onion in a container, add a small amount of water, just enough to touch the bottom, not submerging the entire onion. Change the water every 2-3 days. Once the roots grow, the water change interval can be longer. Maintain the plant in a well-ventilated, bright area with scattered light. After 2-3 days, it will grow white fibrous roots, and the roots will continue to grow, with green leaves appearing at the top.
Hydroponic method for growing onions
1. Peel off the outer skin of the onion that is about to sprout, mainly trimming the dried-out skin, and cut off a small part of the root with a knife.
2. Use an unwanted cup or a flattened plastic bottle, fill the cup with one-eighth water, and place the onion on top of the cup.
3. Change the water every 2-3 days at the beginning, and once the roots grow, the water change interval can be longer.
Onion hydroponics for quick root growthWhen hydroponically growing onions, you can trim the top fibrous roots, place them in a container, and add a small amount of water, ensuring the bottom of the onion touches the water without submerging the entire onion to prevent rot.
Onion hydroponic propagationPlace the onion in a container, add a small amount of water, and change the water daily. Keep it in a well-ventilated, bright area with scattered light. After 2-3 days, it will grow white fibrous roots, and the root system will continue to grow, with the top tender green leaves also slowly growing.
Transitioning onion hydroponics to soil cultivation
Hydroponics is better for onions, similar to narcissus, with the roots growing underwater.
1. Root pruning and drying: Onions are relatively "weak" compared to soil-grown plants because they lack root hairs. Before transitioning to soil, prune and dry the roots, removing old and weak roots and leaving the stronger ones. Then, place them in a shaded, well-ventilated area to dry for about 1-2 days.
2. Prepare growing medium: When transitioning from hydroponics to soil cultivation, onions need time to adapt, so the growing medium should be selected for good aeration and drainage. The soil should be sterilized at high temperatures before use and can be mixed with some carbendazim powder. The soil mixture can be prepared in a ratio of humus soil to river sand of 1:1.
3. Planting in moist soil: Before planting, place a layer of ceramsite at the bottom of the pot to enhance drainage and prevent root rot. Moisten the growing medium with water, keeping it slightly damp. When the growing medium is added to two-thirds of the pot, place the plant vertically in the center of the pot and fill the soil until it reaches the edge of the pot, pressing it down, and finally add a layer of decorative stones on top of the soil.
The above explanation of how to propagate onions hydroponically is hoped to bring a little help to your life!