What is the effect of soil cultivation on green onions? How deep is the soil better?

Because the string-shaped root system of green onions has a small distribution range, it mainly grows in the soil about 30 cm deep and about 20 cm horizontally, and the growth cycle of green onions is long. Therefore, in production, it is necessary to continuously cultivate soil in order to achieve high yields and improve commerciality. Soil cultivation can prevent the lodging of green onions and the softening of leaf sheaths, prolong the length of green onions, and improve the yield and quality of green onions.

The plant height, pseudostem length and thickness, dry matter quality and yield of green onion under soil cultivation treatment were higher than those of non-soil cultivation treatment. For green onions, the quality and appearance attributes of their commerciality are mainly measured by false stems (including length, diameter, whiteness, firmness, etc.), which are also the main edible parts of green onion products. The pseudostems without soil cultivation treatment were obviously inferior to those of green onions, so the soil cultivation treatment improved the commercial performance of green onions.

At the same time, due to the tall plant, the soil cultivation treatment also appropriately improved the lodging resistance of the plant, which had a positive impact on its growth and increased the yield of green onions.

It was found that with the increase of soil depth, the length of green onion white increased significantly, and the white thickness of green onion also showed an increasing trend, and the yield increased accordingly. The yield of green onion mainly depends on the length of green onion and the thickness of green onion, the deeper the soil is cultivated in a certain range, the longer and thicker the green onion white, and the higher the yield per plant, but the total yield of green onion is also affected by the planting density. Proper dense planting and appropriate increase in soil depth can effectively increase the total yield.

The depth of green onion cultivation is about 35 cm.

The role of soil cultivation in the growth of green onions.

After the investigation of the white length of green onions, it was found that the white length of green onions increased significantly with the increase of soil depth under the same plant spacing. However, the length of green onion white of plants with different plant spacing under the same soil cultivation depth also showed an increasing trend with the increase of plant spacing, but the effect was not large. Among them, the treatment with the highest soil cultivation and the largest plant spacing, that is, the soil depth is 35 cm, and the green onion and onion white under the plant spacing treatment of 10 cm are the longest and centimeters; The higher the soil depth and the larger the plant spacing, the longer the green onion white.

It can make the green onions better absorb nutrients, and it can also make everyone better develop, and the yield will be particularly good, and 15 cm is fine.

The effect of soil cultivation on green onions is to increase the length of green onions, and the length of green onions increases significantly with the increase of soil depth. The soil is at a depth of 35 cm, and the green onion is the longest.

Green onion soil cultivation is an important measure to increase the length of green onions, prevent lodging, and improve the quality of green onions. The following issues should be paid attention to when soiling green onions:

Timely soil cultivation: In autumn, the temperature gradually cools, green onions begin to grow vigorously, the leaves continue to increase, and the leaf sheath continues to lengthen. The soil is cultivated too early, and the temperature is too high, which is easy to cause white rot of green onions; If the soil is cultivated late, the plant is prone to lodging.

Moderate soil cultivation: When cultivating soil, the soil is cultivated to the boundary between the leaf sheath and the leaf body, that is, only the leaf sheath is buried, and the leaf body is not buried, so as not to cause leaf rot.

Reasonable soil: take soil from the middle of the row, and the width of the soil should not exceed 1 3 of the row spacing, so as not to hurt the roots.

Soil should be solid: When cultivating soil, the soil on both shoulders of the ridge should be patted to avoid collapse caused by watering or rain washing.

Avoid hurting onions: Do not hurt false stems and leaves when cultivating soil, so as not to affect the photosynthesis of leaves.

Loosen first and then cultivate: Before soil cultivation, the soil should be loosened by cultivating, and then the soil should be cultivated.

Green onion cultivation method and precautions.

1. Soil cultivation time.

Generally, the green onion grows to about 30 cm can be cultivated, not too early, otherwise it will cause the green onion to grow slowly and the green onion bends, the soil should be carried out in the afternoon, because the leaves are tender at this time, and the leaves will not be damaged, if you miss this opportunity, the green onion leaves will be damaged in the potting process.

2. Reasonable top dressing.

In the process of green onion growth, it is generally necessary to carry out about 3 times of soil cultivation, the first time is a small soil, the thickness of the soil is controlled at about 5 cm, generally after the green onion grows to 30 cm after the formation of green onion white, it can be applied with green water-soluble fertilizer to promote the root system to take root and meet the needs of the early growth of green onions. When the green onion grows to 40-45 cm, the second soil cultivation is carried out, and the thickness of the soil is controlled at about 10 cm. The last time the soil is about 20 days before harvesting, in order to improve the quality and taste of the green onion, the thickness of the soil is controlled at about 10 cm.

3. Soil cultivation method.

The width of the soil should not be too wide, take the soil from the middle of the row, and the width of the soil should not exceed one-third of the row spacing, and not too deep, so as not to hurt the roots, and the soil should be pat solid to prevent the rain from collapsing. The soil is too dry or too wet and should not be cultivated, and the false stem of the green onion should be kept straight, so it is not suitable to cultivate the soil too deeply, and bury it deep to the leaf sheath, otherwise it is easy to cause the white onion to bend.

4. Pay attention to the season.

In the high temperature season, it is not advisable to cultivate soil, otherwise the false stem will rot because it is buried too deep in the soil, and the number of soil cultivation can not be too much, and frequent soil cultivation will not only increase the workload, but also inevitably hurt the roots and leaves, affecting the growth of straw. Do not be too deep at a time, otherwise it will bury the leaves, which is easy to cause decay, each time the thickness of the soil is 3-4 cm, the soil will be cultivated to the boundary between the leaf sheath and the leaf body, that is, only the leaf sheath will be buried, and the leaves will not be buried.

OK. The higher the green onion soil, the higher the white growth of the green onion, and the better the quality of the green onion.

Green onion planting management:

1. Seed selection and site selection.

Choose high-yielding, disease-resistant, locally appropriate varieties. The selected land has a high content of organic matter, deep soil layer, high dry land, and easy drainage, therefore, the green onions produced by these plots are spicy, rich in flavor, and have a high yield.

2. Sow seeds and raise seedlings.

The ground is deeply turned and fertilized, and it is generally made into a high furrow with a width (even a ditch) meter. 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 warm and moisturize and speed up the emergence of seedlings.

3. Deep ploughing of the soil.

The root system of green onions is not developed enough, and the root system is deep after soil cultivation, so creating good aeration conditions is the key to ensure the healthy growth of green onions. Plough the soil to ensure that the soil in the planting area is alive. Therefore, the plot where the green onions are planted must be deeply cultivated by more than 30 cm and the soil must be loose.

4. Reasonable fertilization.

Green onions like nitrogen, potassium fertilizer, in the whole growth cycle of green onions reasonable fertilization, suitable for topdressing with green water-soluble fertilizer, fertilization needs to use thin fertilizer diligent method.

5. Reasonable dense planting.

The cultivation of imported green onions mostly adopts the wide-row dense planting method. The row spacing is 90 100 cm, the furrow depth is 15 20 cm, the plant spacing is cm, and the plants are planted in 10,000 plants per 667 m. Before planting, diseased and weak seedlings, deformed seedlings and miscellaneous plants were eliminated, and they were divided into three levels: large, medium and small according to the size of the seedlings.

When planting, use "pipe to the end" pesticide at the bottom of the ditch to prevent insects and diseases.

6. Mechanical training*

Soil cultivation can soften the whiteness of green onions, improve quality, and promote growth. The whole growth period is generally 3 5 times of soil cultivation, and the workload is very large, so machine soil cultivation is applied. The machine has high soil cultivation efficiency and high degree of standardization, which is especially suitable for large-scale planting.

7. Pest control.

The insect pests of off-season cultivated green onions mainly include leaf miners, allium thrips, and Spodoptera exigua. The main diseases are purple spot disease, downy mildew, virus disease and so on. Early detection of diseased plants should be pulled out in time, and timely prevention and control should be carried out, and fertilizer and water management should be strengthened.

The yield of green onions is relatively high, and it can be harvested and marketed according to the needs of the local market, or when the green onion is about 30 cm long and more than 1 cm thick. It can be harvested in batches or all at once, depending on the need. When it needs to be stored, it should be placed with the roots facing down, the leaves facing up, and placed in ventilation.

It will have an impact, and the cultivated soil must be carried out during the formation period of green onions, otherwise it is easy to cause rot of roots and plants. The soil should be gradually thickened according to the size of the seedlings, but if the soil is unreasonable, it can cause the green onion to burn the roots, the green onion to bend and so on.

Green onion soil saving time and effort saving method:

First, the time of soil cultivation. Green onions are generally cultivated 3 times during their lifetime. For the first time, it became a "small pei", the thickness of the soil is controlled at about 5 cm, and the soil can be cultivated when the green onion grows to 30 cm, not too early, otherwise it can cause the green onion to grow slowly and the green onion to bend; Soil cultivation should be carried out in the afternoon, because the leaves are tender, otherwise it is easy to cause leaf damage.

When the green onion grows to 40 to 45 cm, the soil should be cultivated twice, and the thickness of the soil should be controlled at about 10 cm. The last soil was cultivated about 20 days before harvesting, and in order to improve the quality and taste of green onions, the thickness of the soil was controlled at about 10 cm. Soil cultivation should pay attention to the season, high temperature season can not be soil, otherwise the false stem buried in the soil is too deep and easy to rot.

Second, reasonable top dressing. When the green onion grows to 30 cm, after the green onion is formed, you can apply 25 kg of balanced (such as 15-15-15 type) compound fertilizer with 150 kg of soybean meal organic fertilizer to promote deep rooting and meet the needs of green onion growth in the early stage. When the green onion grows to 40-45 cm, the top dressing should be mainly nitrogen and potassium fertilizer, and you can choose 15-5-20 high nitrogen and high potassium type to promote the growth of false stems and leaves, and at the same time cooperate with 250 kg of soybean meal organic fertilizer.

About 20 days before harvesting, 50 kg of calcium nitrate can be sprinkled, and nitrogen fertilizer should not be added to this top dressing, otherwise it is easy to cause the green onion to become white and soft, and the taste is poor.

3. Soil cultivation method. The width of the soil should not be too wide, and the width of the soil should not exceed one-third of the row spacing, and not too deep, so as not to hurt the roots; The soil should be compacted to prevent rain or watering from collapsing; If the soil is too dry or too wet, it is not suitable for soil cultivation; It is necessary to keep the false stem of green onion straight, and do not cultivate the soil too deeply, and bury it deep to the leaf sheath, otherwise it is easy to cause the white onion to bend. And the soil should not be too deep at one time, otherwise it will easily cause leaf rot if the functional leaf itself is buried.

The thickness of each soil is 3 4 cm, and the soil is cultivated to the boundary between the leaf sheath and the leaf body, that is, only the leaf sheath is buried, and the leaves are not buried.

Fourth, the number of soil cultivation. The number of soil cultivation should not be too much. Frequent soil cultivation not only increases the workload, but also inevitably hurts the roots and leaves, affecting the growth and accumulation of green onions.

The soil cultivation of green onions is generally 3 months after the green onions are planted, and the deep soil is cultivated, otherwise, the green onions will only grow taller, not thicker.

If the planting is less than 3 months, the green onion grows tall, and it will fall if it is not cultivated, and the soil of the green onion ridge can be divided into the green onion ditch and cultivated.

Green onion soil cultivation, you can use a soil cultivator, a soil cultivator, a day can cultivate 15 acres of green onions, one person can operate, the machine does not consume much fuel, very labor-saving.

First of all, we should pay attention to the width of the soil, not more than 1 3 of the width, and secondly, to prevent the collapse after the rain, and the soil should also be carried out in the afternoon.

It is necessary to pay attention to the temperature control and choose the soil with a high temperature for cultivation, so that the survival rate of green onions will be high.

We must pay attention to the soil to be very nutritious, timely fertilization and watering, but also pay attention to the protection of pests and diseases, and timely spraying of pesticides.

When planting, you must learn some professional planting techniques, and you should also choose very fertile soil, and you should also keep it in sufficient light, and you also need to water it in time.

It must be pH balanced, and the soil must be fertile, and the soil must have enough nutrients so that the green onions will grow better.

Summary. Generally, the row spacing is 50-60 cm, the plant spacing is 5-6 cm, 2-30,000 plants can be planted per mu, and about 300 kg of onion seedlings are needed.

Generally, the row spacing is 50-60 cm, the plant spacing is 5-6 cm, 2-30,000 plants can be planted per mu, and about 300 kg of onion seedlings are needed.

The seed coat of green onion seeds is thick, the seeds are unearthed slowly, and the seedlings grow slowly and have a long seedling period after unearthing. In order to shorten the time occupied and facilitate management, seedlings are generally transplanted. The preparation of the green onion seedbed is basically the same as that of the bed of leeks and onions.

There are two types of sowing methods: spreading and stripping. 1. Sowing is when the soil water content is insufficient, first water the bottom of the foot, and then evenly sow the soil, and the thickness of the covering soil is about centimeters. Cover the soil to dry (generally the second or third day of sowing) and flatten the furrow.

In this method, the soil moisture is sufficient, the topsoil is not compacted, and the seedlings emerge neatly. When the moisture is good, you can not water the bottom water, but after covering the soil, you should suppress the side fields in time. 2. Strip sowing is a shallow ditch with a depth of 15 cm in the row spacing of 15 cm, and the seeds are evenly sown in the ditch, and then the furrow surface is flattened.

When the moisture is insufficient, it should be watered immediately after sowing, and watered again before the seedlings emerge, so that the seedlings can be unearthed smoothly. The amount of seeds per mu is 2-4 kg, and seedlings can be planted 5-10 mu per mu.

Does the effect of mechanical soil cultivation have a big impact?

The use of mechanical tillage does not have a large impact on the fertility of the soil (almost nothing), and its impact is mainly due to the impact of mechanical oil spills on the soil trillions The other is that the mechanical wear increases the metal content of the soil, because the wear and tear of your tillage machinery is not large, but the impact on the soil is minimal

Does mechanical soil cultivation have a big impact on the effect of green onion soil cultivation?

The work efficiency is high, and the use effect is ideal.

I would like to ask if there is a difference between the mechanical soil cultivation effect of one ditch and two rows of mechanical soil cultivation and one ditch and one row!

The picked furrow kernel is much deeper than the single furrow and single row; According to the onion farmers who use single ditch and double row planting, the depth of the ditch for single ditch and double change is 60 cm, and the width of the bottom of the ditch is 25 cm.