It's good to grow onions on the balcony, so you can experience the fun of planting. If you want to eat them when they are mature, you can pull out a few trees to make soup, which is also quite delicious. The balcony has good lighting and ventilation, which is suitable for the growth of onions.
Steps of planting onions on the balcony
1, sowing
Soak onion seeds in warm water for four hours. The seeds bought are generally dry and germinate more easily after soaking. Then all you have to do is scatter the seeds in the soil. It's a little as thin as hair in the early stage, and it will grow thick and strong in the back. Get more sunshine and then cultivate some soil. The back is very strong.
2. Types of onion roots
Buy back the onion, eat the edible part on it, leave the part with roots about three or four centimeters, plant it in the soil, and leave a centimeter on the surface of the soil to help it grow onion leaves. If the soil is rich, you don't need to fertilize later, just water it the next day.
Key points of planting onions on balcony
1, temperature
Onions like warm growing environment, and the suitable temperature for growth is between 15 ~ 25 degrees. When the temperature is too high, shallots run fast, grow slender, thin and long, which is not good-looking or delicious.
Step 2 control watering
After the emergence of shallots, water should be controlled, and the air humidity should not be too high, so it can be dry and wet. Just wait until the soil is dry before watering it, and water it thoroughly every time.
Step 3 get more sunshine
If the shallots are potted, they should bask in the sun. It is a sun-resistant plant, which grows stronger with the sun. Generally, it is necessary to shade and maintain at the seedling stage to avoid the seedlings being too weak to be sunburned. When it grows to a few leaves, you can put it in a sunny place, so it can grow well.
How to fertilize onions on balcony?
1, fertilization method
When fertilizing leeks planted on the balcony, the fertilization method can be determined according to the color of the soil. When the soil turns white, fertilizer can be directly added to the soil to improve the fertilizer content of the soil. When the soil is dark, it is necessary to mix fertilizer with clear water and pour it in the soil, so that onions can absorb enough nutrients.
2. Fertilizer selection
When fertilizing the leek planted on the balcony, it can also provide them with balanced nutrition. In the vigorous growth period of shallots, decomposed farmyard manure, cake manure or nitrogen fertilizer can be provided to improve the growth speed of plants. In the case of thin leaves of shallots, phosphorus, potassium fertilizer or potassium dihydrogen phosphate fertilizer can be provided.
3, fertilizer damage treatment
When fertilizing chives planted on the balcony, if there is too much fertilization, it is necessary to irrigate the soil with clear water in time to dilute the amount of fertilizer in the soil and let the plants grow healthily. After watering, you can also loosen the soil for onions to discharge excess water in the soil and avoid water accumulation in plants.