Seed Price and planting method of Welsh Onion

Green onions, also known as green onions, spring onions, herbs, etc., are biennial herbs of the Liliaceae. Planting is very common in northern China, and the producing areas are mainly distributed in the northwest, northeast and North China. It occupies an extremely important position in vegetable production in China. Its cultivated area accounts for 10% of the total sown area of vegetables. Let's take a look at the seed price and planting methods of green onions.

How much is the green onion seed?

The price of green onion seeds varies greatly from variety to variety, such as about 240 yuan a box of high-yield and high-quality iron green onion seeds from Yamamoto, and about 320 yuan a box of green onions imported from Japan without leaves. Spring onion seeds are raised with new seeds of the same year, with a sowing rate of 3 kg per mu, which can be used to plant 6 mu of land. If the seeds stored for one year should be more than doubled, the seeds that have been aged for more than two years can no longer be used.

Planting conditions of scallions

1. Temperature: Welsh onion originates from semi-cold zone. In cold and warm climate, Welsh onion has high yield, good quality, strong cold tolerance, can endure low temperature of-20 ℃, seedlings can survive the winter safely under the condition of-10 ℃, and the highest can withstand high temperature of 45 ℃.

2. Illumination: green onions do not require high light intensity and neutral sunshine time. As long as they pass vernalization under the action of low temperature, they can bolt and blossom normally regardless of the duration of sunshine.

3. Moisture: the leaves of Welsh onions are tubular, waxy and drought resistant, which can reduce water evaporation and tolerate drought. The root system has no root hair, the water absorption capacity is poor, and each growth period must meet the water supply in order to grow healthily.

4. Soil: Welsh onion originally does not have strict requirements on soil, but the root group is small, without root hair, and the ability of absorbing fertilizer is poor. If you want to achieve high yield, you must choose the soil with loose soil, deep soil layer, fertile soil, good drainage and rich in organic matter.

Variety selection of scallions

1. Spring planting and autumn harvest: generally, seedlings are raised in March ~ April, planted in May ~ June, and harvested in October ~ December. Varieties are required to grow fast, heat-resistant and Rain Water-resistant, and high yield. Puwei Star No. 3, No. 4, Minghui and New Champion can be selected, but small leaf varieties are generally not selected.

2. Spring seed and winter harvest: generally, seedlings are raised from March to May, planted from June to July, and harvested from December to January of the following year. Varieties require good commodity quality, high commodity rate, strong low temperature tolerance and high yield, such as Yudu scallions, Star No.2, Mingmen, Changfeng scallions, Fengyu and so on.

3. Summer and autumn spring harvest: generally, seedlings are raised from May to September, planted from September to November, and harvested from May to July the following year. Varieties are required to be resistant to bolting, disease resistance, high yield and delayed harvest, such as Puwei long summer, late harvest in spring, late harvest of famous generals, etc.

4. Spring and summer harvest in winter: seedlings are generally raised from September to October, planted from November to December, and harvested from May to July the following year. Varieties are required to be resistant to low temperature, bolting, disease resistance and delayed harvest, such as Puwei long summer, late harvest in spring, late harvest, Star No.2, Fengyu and so on.

Planting method of Welsh Onion

1. Sowing time: there are differences in sowing time due to different climatic conditions in the north and south of the country. The best time to determine the size of seedlings before overwintering is that they are easy to bolt in spring after vernalization, but they cannot survive the winter safely if they are too small. The standard of seedlings before winter is to grow into two leaves with one heart.

2. Arrange the seedbed: the seedbed should choose the land that is flat, fertile, close to the water source and convenient for drainage, shallow ploughing and fine raking, 50 kg per mu of compound fertilizer as base fertilizer, 2.5 kg per mu of Fulandan and 0.5 kg of carbendazim powder to kill underground pests and bacteria.

3. Sowing method: take out the cover soil from the border before sowing, then irrigate the border with enough water, after the water seeps, mix the seeds with sandy soil, sprinkle it twice in the border, and finally cover the soil with a thickness of 1.5-2 cm. The amount of seeds used in the seedling field is 1.3 kg per mu, and it can be transplanted to 3-5 mu.

4. Timely planting: spring onions sown in summer were planted in the first and middle of September, and spring onions in autumn were planted in March to April of the following year. Row spacing 80 cm, plant spacing 1.5-2 cm, trench planting. The onion seedlings were strictly graded before planting, and then treated with chemicals to eliminate root maggots and ensure the whole seedling.

5. Rational watering: after planting, the management center of Welsh onion is to promote roots. Watering should be controlled, drainage and waterlogging should be prevented after rain to prevent rotten roots, yellow leaves and dead seedlings. After transplanting, such as continuous rain will lead to rotten roots and dead seedlings, we should pay attention to timely drainage. In case of high temperature and drought, it should be watered to cool down.

6. timely topdressing: topdressing "leaf-attacking fertilizer" after autumn, 1500kg / mu of rotten farm manure and 20kg / mu of superphosphate. After White Dew, combined with watering, "attacking plant fertilizer" was applied twice, with 15kg urea and 10kg potassium sulfate per mu.

7. Timely soil cultivation: soil cultivation is an important measure to soften leaf sheath, prevent lodging and improve the yield and quality of onion. From the beginning of the autumn festival to the harvest, generally cultivate the soil three times, the first two times combined with mid-ploughing, the ridge soil will be choked into the green onion ditch, the End of Heat will fill the ditch.