There are many green onion cultivation techniques, what is the technical guidance for green onion cu

To grow green onions for high yields, it is important to choose excellent varieties. A good variety is the most critical step to successful planting and high yields. You can choose from Chinese giant green onions, Zhangqiu green onions, chicken leg green onions, Anshu hardcore king green onions, etc., which are all good varieties.

First of all, the ground is tidied up, and then the green onion seedlings are separated according to the size, the large green onion seedlings are planted, and the small ones are planted again. When planting green onions, dig the ditch first, and then sprinkle some fertilizer (appropriate amount) into the ditch, if there is wheat bran, it is best to sprinkle some wheat bran.

Choose a plot with high terrain, good drainage and fertile soil, apply foot fertilizer, and the bottom fertilizer can be applied to 5000 kg of farm fertilizer, 100 kg of phosphate fertilizer, 10 kg of urea, 15 kg of potassium fertilizer, or 30 kg of ammonia, or 50 kg of compound fertilizer, and then plough and turn over the soil to eliminate the source of disease, select a variety of green onions suitable for local planting, and in the autumn of the first year, level the land, water thoroughly, and apply bottom fertilizer. Sprinkle the green onion seeds into the soil and wait for the green onion seedlings to grow! However, green onions are really powerful, and in cold winters, green onion seedlings can safely survive the winter.

Dig out the shallots, pull the radish furrow bigger, sprinkle organic fertilizer in the ditch, and then sprinkle a layer of soil on the fertilizer, and then row the green onion in the ditch, in order to make the green onion grow thick, the distance between the green onion and the green onion is three centimeters, and finally cultivate the soil, the soil is an important management measure when planting green onions, it has an important role in preventing lodging, softening the false stem, and improving the quality and yield of the green onion. Generally, the soil cultivation is carried out many times, starting from the height of the green onion 20 cm, once every half month.

Green onions can be planted from early June to early July every year. Seedlings should be planted with a plant height of 40 cm and a stem thickness of more than 1 cm. Apply high-quality farmhouse fertilizer before ploughing, and then open a ditch, the ditch is suitable in the north-south direction, the ditch spacing is 60-70 cm, the depth is 30 cm, and the width is 15-20 cm. The root system of green onions is not developed enough, and the root system is deep after soiling, so creating good aeration conditions is the key to ensuring the healthy growth of green onions.

The first thing to do is to choose a good variety. Seedlings are then raised in the right weather. After the green onion is planted, we must do a good job of drainage, and then strengthen the management of green onions at ordinary times, water more water on green onions, give it more top dressing, and then give the green onions soil, and we must pay attention not to bury the heart leaves when cultivating the soil.

It is best to sow seeds in autumn, the temperature is not too high, generally about 17 degrees on it, to choose some permeability and water absorption of good soil, you can prepare some compound fertilizer, fertilizer, nitrogen fertilizer, the distance of planting green onions is not too close, after the green onions are lived, they should be watered frequently, and they should also be properly cultivated, so that the quality of green onions planted is very good.

The planting time is generally from late May to early June. Before planting, the size of the seedlings is separated, and the diseased seedlings, weak seedlings, too small seedlings and obviously bent seedlings are removed, the plant spacing is 35-40 plants per meter, the row spacing is 1 meter, and about 10,000 plants are planted per mu. When planting, avoid breaking the green onion seedlings, the planting depth should not bury the green onion heart, too deep should not sprout, too shallow to affect the length of the green onion.

When planting, the leaf surface and the planting furrow should be arranged in a vertical direction, which is conducive to dense planting and management. Planting tools can be used about centimeters in diameter of the garden iron skewer or garden wood pole, planting first make a shallow hole, perpendicular to the ground, and then insert the seedlings, and then slightly lift up, so that the roots are spread downward, keep the green onion seedlings straight. If it is bent, the stem is bent until it is harvested later, and it becomes a defective product.

<> planting of green onions is generally carried out in spring and autumn, and the survival rate of planting will be relatively high during this bright season. The soil for planting needs to be loose, breathable, deep and well-drained. When planting green onions, there should be a certain distance between them, keep the soil moist after planting the ruler front, and apply thin fertilizer frequently during the vigorous growth period.

1.Planting time selection of sleepy socks: the planting of green onions is generally carried out in the spring and autumn seasons, the weather in these two seasons is relatively warm, the temperature is mostly maintained at about 20, is the best time to plant green onions, the most suitable for the growth and development of green onions, when planting, it is best to choose in sunny weather.

2.Suitable soil selection: The best soil for planting green onions is to choose loose and breathable, deep soil and relatively good drainage, so that the soil is more conducive to the growth of green onions.

3.Planting and maintenance: when planting green onions, it is necessary to ensure sufficient spacing, not too dense, after planting needs to be watered in time to keep the soil moist, and when the green onions are growing vigorously, apply phosphorus, potassium and nitrogen compound fertilizer every half a month, which is conducive to the vigorous growth of green onions.

The cultivation technique of green onions is to sow seeds and seeds, and field management should pay attention to light and disease.

1. Cultivation technology: fertilize the ground deeply, and generally make a wide rice high furrow. The seedbed should be finely arranged, the bed surface should be infiltrated with water before sowing, and the seed amount per mu should be 75-100 grams.

After sowing, cover with soil 2 cm, and then cover with straw or film to increase temperature and moisture, and speed up the emergence of seedlings. The general row spacing of open field cultivation is 90 100cm, the depth of the furrow is 15 20cm, and the plant spacing is planted in 10,000,000 plants every 667m.

2. Technical management: green onions like nitrogen and potassium fertilizers, and every 1000kg of green onion products need to absorb 3kg of nitrogen, phosphorus and potassium from the soil, and generally 100kg of high nitrogen and high potassium compound fertilizers are required per 667m. Generally, it is required to apply about 40kg of compound fertilizer to the bottom fertilizer.

Later, combined with watering of sealed soil, about 20kg is applied each time. The insect pests of off-season cultivation of green onions mainly include leaf miners, allium thrips, beet armyworm, etc., and the diseased plants are pulled out in time when they are found in the early stage, and they are prevented and controlled in time, and fertilizer and water management is strengthened. Car scale.

Field management of green onions

The requirements for the planting area of the green onion are not high, generally as long as the light is relatively sufficient, and close to the water source, easy to irrigate, the soil organic matter content is more abundant plots can be planted. When preparing the land, it is necessary to turn at least 30 centimeters deep, and clean up the impurities in the soil, pest residues, weed roots, etc., so that the later management will be relatively simple. Finally, the clods of soil are broken as much as possible, and then raked flat, and at the same time, the width is about one meter to one meter and five meters to make a ditch for planting.

There are three main ways of green onion planting, namely planting propagation, branch propagation and bulb propagation, the suitable planting time is generally around May to June each year, and then according to the distance between each row to do 30 cm of ditching for strip sowing or strip planting, the interval of each plant is about five to eight centimeters, and the planting ground must be watered thoroughly before planting, so that the survival rate can be increased by at least 15 percent.

Cultivation technology of green onions: seedling raising, transplanting and planting; Management of green onions: seedling management, field management.

1. Cultivation technology of green onions.

1. Seedling. Before sowing, a flat and fertile, well-drained plot should be selected as a seedbed, and the seedbed should be lightly tillaged and raked, and 50 kg of compound fertilizer should be applied per mu before sowing. According to the planting varieties to determine the sowing time, the suitable sowing time for high-yield cultivation of green onions is autumn, when the average temperature is stable is the appropriate sowing time (generally in early October).

The spring sowing time is generally around the Qingming Festival.

2. Transplanting and planting.

After the green onion seedlings grow to a certain extent, they will be transplanted into the planting ground, and 5000 kg of farm fertilizer per mu will be applied before planting, as well as an appropriate amount of urea, phosphate fertilizer and potassium fertilizer. According to the size, height and thickness of the onion seedlings, they are divided into 3 grades (if the green onion seedlings are enough, then generally do not use 3 grade seedlings), and then it is necessary to do it with the grading and transplanting of the seedlings, so that the green onion seedlings can be kept fresh when transplanting.

Second, the management of green onions.

1. Seedling management.

When the cotyledons are straightened, water and weed in time, and when the green onion seedlings grow to 5 cm, the seedlings are lifted in time.

2. Field management.

The field management of green onions requires cultivating strong seedlings, watering and replenishing seedlings, timely watering, and soil topdressing. Pay attention to the prevention and control of onion maggots, allium thrips, leaf miners and other pests, as well as fungal diseases, and timely use of drugs when pests and diseases occur.

Introduction to green onions

Green onions, herbaceous plants of the genus Allium in the lily family, its underground bulbs are solitary and cylindrical, and a few shallots are swollen above the roots and are ovate cylindrical; The bulb has a white rind, some with a slight reddish-brown color; The whole green onion is cylindrical, hollow, and narrower and narrower from the bottom to the top; The flower leaf is cylindrical, hollow, expanding more and more from the middle downward, gradually narrowing towards the apex, the lower part of the flower leaf is wrapped by the leaf sheath, and the umbel-like florets at the top are spherical and radially arranged; The petals are white, nearly oval, and the tips are gradually sharpened.

The flowering and fruiting period of green onions is from April to July. Green onions are native to Siberia and are important production areas in China, with Shandong, Hebei, Henan and other provinces as important production areas. Green onions have strong cold tolerance and heat resistance, drought tolerance is very strong, like dry climate, but not humid tolerant, excessive rain weather is not conducive to its growth, the requirements for the soil is deep soil layer, good ventilation and drainage, often use sowing or branch propagation.

The above content refers to Encyclopedia - Green Onion (Liliaceae Allium).

1. Land preparation and fertilization: Choose a flat field for planting green onions, and apply well-rotted manure. 2. Sowing and planting:

The green onion seeds are sown on a furrow surface with a width of one meter, covered with soil and watered. 3. Seedling management: seedlings grow 5 leaves after seedlings.

4. Pest control: downy mildew is prevented with a new high-fat film, and purple spot is treated with zeb zinc.

1. Soil preparation and fertilization

The cultivation of green onions should choose a flat terrain, convenient drainage and irrigation field, and use a hoe or machinery to turn it deep to improve the air permeability of the soil, and then apply 5000 kg of rotting manure and sulfuric acid ternary compound fertilizer per mu to provide a fertile growth environment for green onions.

2. Sowing and planting:

Before sowing green onions, it is necessary to apply fried yellow mixed with phosphine to the field to remove pests and eggs in the field, and then dig out a furrow with a width of 1 meter, and evenly sow the full green onion seeds on the furrow surface, cover the fine soil and water it, and wait for the green onion seeds to germinate.

3. Seedling management

After the green onion seedlings grow 5 leaves, the seedlings should be treated, the spacing between the seedlings should be kept at about 1 cm, and the weeds should be pulled out to avoid weeds and green onion seedlings competing for nutrients.

4. Pest control

Common pests and diseases of green onions are downy mildew, black mildew, purple spot, after the disease the plant will grow mold, black or purple spots, affecting the growth, in the process of breeding, you can spray a new high fat film every other week to prevent downy mildew, or water lime water to prevent black mildew, purple spot is to use dysen zinc dilution agent treatment.