Planting method and propagation method of water onion

Water onion may be less known, water onion leaves linear, long lateral branch Cymes simple or comeback. Then how to grow spring onions? What are the methods of reproduction? Let's learn about it next.

I. the planting method of water onion

1. Sowing: after the spring onion is harvested before February, the field will be deeply turned and whitened, and the dark side will be finely broken and leveled after applying sufficient basic fertilizer. The germination temperature of spring onion seeds was the fastest at about 18 ℃ and emerged at 5-6 days after sowing. Do not water the cotyledons before straightening, so as not to cause topsoil to harden.

2. Transplanting seedlings: the seedlings can be transferred and planted from April to May, and it is best to plant them at different levels in order to facilitate management. The row spacing of 20cm × 20cm was 3 plants per hole, and the row spacing of varieties with strong tillering ability was 20cm × 25cm, with 3 plants per hole. When planting, a pointed cylindrical wooden stick Jack is used, and the planting depth should be exposed.

Temperature: water onions like cool climate, avoid extreme heat, frost-resistant. The requirement of winter temperature is not very strict, as long as it can survive the winter safely without frost, it dies when the temperature is more than 30 ℃ in late spring and early summer, and the most suitable growth temperature is 15-25 ℃. Try to sow seeds in autumn and winter to avoid high temperatures in summer.

4. Humidity: spring onions like dry air environment, overcast and rainy days are too long, and they are easy to be infected by bacteria. For fear of rain, keep the leaves dry at night. The optimum air relative humidity is 40-60%.

5. Water and fertilizer: in addition, spring onions have more requirements for fertilizer and water, and fertilization should follow the principle of "light fertilizer applied frequently, less and more times, and complete nutrition", and watering should follow the principle of "dry and wet, dry and thoroughly, no dry, no watering". Attention should be paid to water control and fertilizer control when breeding in winter.

2. Propagation methods of onions.

1. Sowing and reproduction: often sowing indoors from March to April. The cultivation soil is leveled and compacted, seeds are sowed on it, a layer of fine soil is sifted to cover the seeds, and the basin is shallowly submerged in water, so that the basin soil is often soaked. When the room temperature is controlled at 20-25 ℃, it can germinate and take root in about 20 days.

2. Ramet propagation: when the weather is getting warmer in early spring, dig up the overwintering seedlings from the ground, shake off part of the soil, divide the underground stems into several clumps with shears or shovels, each with 5-8 stems, and plant them into flowerpots without discharge holes. Keep the pot soil in a certain humidity or shallow water, and sprout in 10-20 days.

The above is the introduction of the planting methods and reproduction methods of water onions. I hope it will be helpful for everyone to grow water onions. I also want to know other knowledge of water onions and continue to pay attention to us.

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