Growing clean vegetables on the rooftop is quite popular with every family. In particular, green onions are chosen by many housewives to be grown because of their effectiveness and not taking too much time. However, housewives also need to pay attention to how to grow and care for green onions, especially in cold winter weather.
Prepare the variety and choose the variety
The body plays a decisive role in the development of the root system. To grow green onions effectively on the terrace, the soil needs to be loose and drained well. The ideal mixture includes clean soil, rotten beef manure (or vermicompost) and ashes in ratio of 5:3: 2.
Regarding varieties, using available onion stems (rooted onions) often brings faster results than sowing seeds in the cold season. You should choose old onions with large roots, sturdy and no signs of mold.
Seeding and keep warm techniques
Before planting, you should cut down the old leaves and dry roots of the seedlings to stimulate new shoots. Add the onion base about 2 - 3cm deep to the soil, keeping the distance between the plants from 10 - 15cm to ensure the growth of the onions is airy.
The characteristic of the cold winter is that the soil temperature drops, so after planting, you should cover the pot with a layer of dry straw or thin coconut fiber. This coating has the effect of keeping heat in the roots and limiting evaporation during dry days.
Chicken care regimen
Caring for green onions in the cold season requires adequate water and light. The terrace is an area that is easily flooded or crushed by strong winds.
Therefore, housewives should only water water early in the morning when the fog has dissipated. Avoid watering late in the afternoon because water stagnates on the leaves during cold nights, which can easily cause fungal diseases.
Place the green onion planting bins in the best sunlight position. In winter, the sunny period is short, so optimizing the photosynthesis will help the green onions become darker and more fragrant.
After about 15 days, you can add water organic fertilizer or fermented rice water to increase the resistance of the plant to cold windy days.
Pests control and harvest
The cold winter often causes frost and frostbite. Instead of using chemicals, housewives can use a diluted crushed garlic and chili solution to spray periodically. Regular inspection and removal of yellow onions will help prevent the spread of pathogens.
Green onions can be harvested after 30 - 40 days of planting. The standard harvesting method is to cut the leaves 2 - 3cm from the base. After cutting, gently dredge the soil and fertilize with some organic fertilizer so that the plants can continue to produce new shoots of onions.
