How many days does leek seed sprout generally? How to plant it?

Leek is a very tenacious vegetable, it can grow well without any care, and the requirements for the planting environment are not high. Leek sowing is one of the commonly used planting methods, how many days does the leek seed sprout? How to plant it?

How many days does the leek seed sprout?

It usually takes 10 to 20 days for leek seeds to germinate from the seed to the first true leaf. The optimum temperature for germination was 15: 18 ℃, and the lowest temperature was 2: 3 ℃. No germination was found when the temperature exceeded 20 degrees. And the unearthed ability of leek is weak, so pay attention to the thickness of covering soil.

Second, how to plant leek seeds?

Leek seeds can be sowed with dry seeds or soaked to accelerate germination, which should be adopted according to planting season, temperature and other conditions.

The method of soaking seeds to promote germination is that 4-5 days before sowing, put the seeds in about 30 ℃ of warm water, 24 hours later, wash them out with cold water, use clean gauze as the inner layer, clean wet sacks as the outer layer, and put them at the temperature of 15: 20 ℃. During the budding period, rinse with clean water once a day. After 3-4 days, the bud can be exposed, and it can be used for sowing.

Sowing in spring, the soil temperature is low, in order to strive for quick emergence of seedlings, soaking seeds should be carried out to promote sprouting. Sowing seeds in late spring or early summer, suitable temperature conditions, but not soaking seeds or only soaking seeds without sprouting.

The sowing time of leek is generally from late March to early May. It is appropriate to sow seeds in spring and early rather than late in summer. And because leek is a perennial vegetable, autumn sowing is very suitable. Therefore, in Shandong area, the planting time of leek is after September, and it can be sown in autumn.

Reasonable ploughing needs to be carried out before sowing. Because leek needs a large amount of fertilizer, it is necessary to apply sufficient base fertilizer in the soil before sowing. Generally, you can choose about 5000 kilograms of farm manure, 5 kilograms of urea and 30 kilograms of diamine. The way of sowing is generally strip sowing or sowing.

In the growth process of leek, good field management is naturally the key to improve the quality of leek. The first is fertilization. Here we will focus on some matters needing attention on the fertilization of leeks. It has been mentioned above that leek is a kind of plant that needs a large amount of fertilizer, and a good supply of fertilizer can ensure the growth of leek. Base fertilizer has already been mentioned above, so there will be no more introduction here. Here we mainly talk about the topdressing of leeks.

Topdressing work needs to be carried out in time, according to the growth of leeks and seasons and other factors to carry out reasonable topdressing. For the leek seedlings with a short planting time, it is mainly to promote the growth of the root system, and topdressing is needed according to the growth status of the leek. When the new leaves grow after the leek seedlings are planted, 20 kg diammonium phosphate can be applied per mu.

After entering the harvest season, leeks need to be fertilized in time after each harvest, which is commonly known as "knife fertilizer". It takes two days to water and fertilize after harvest, which can prevent leek wound infection. Can be used per mu of rotten manure 400 kg, compound fertilizer about 30 kg, combined with watering.

In addition to fertilizing work, if you want the leek to grow well, you also need to pay attention to letting the leek rest its roots. In the hot summer season every year, it is best to stop harvesting leek and let the leek grow roots, which can not only improve the quality of leek, but also prolong the harvest life of leek. In addition, we should also do a good job in the prevention and control of diseases and insect pests of leeks.