When planting green onions, how to choose the soil that is suitable for its growth?

Green onion is a fertilizer-loving and water-loving crop, which can improve the yield and quality of products due to the comprehensive nutrition of organic fertilizer, long and long-lasting fertilizer effect. Therefore, many growers choose to use well-rotted organic fertilizer as base fertilizer. We want to choose plots with high organic matter content and fertile soil.

My aunt, aunt and uncle's family have planted green onions before, and they used to help pick green onions during the summer vacation, but although the green onions grown in the soil here are white and strong, the air permeability is too poor, and they have to be improved and taken care of in the later stage.

<> Gansu loess has one of the biggest advantages is "loose", which is not directly related to drought and cold, like my green onion has been transplanted on a barren halfway mountainside called "Chunshutai", that piece of land is loess and yellow sand. If you want to say that the soil quality is good for planting green onions, of course, the fluffy soil is the best, such as fertile black soil and sandy soil, both of which are fluffy soil, that is, loose soil. Due to the high sand content in the soil, the space is propped up.

If you grow onions in large quantities, you can grow clay soil like the one in a vegetable patch. The clayey soil has less sand content, good water retention performance, heavy soil texture, not easy to lose when watering and fertilizing, and good nutrient retention, which can provide a steady stream of nutrients for the roots of green onions.

Seedling management: Generally, 6-8 days after sowing, the mulch is removed when the seedlings are ready. The growth of plants at the seedling stage is small, and the leaf transpiration is small. After the emergence of seedlings to the three-leaf stage, it is necessary to control the fertilizer and water to make the root system develop strongly.

The seedling stage should be interspersed 1-2 times, remove the weak seedlings that are too dense, and in the autumn onion white and prosperous period, it is necessary to water in time and appropriately to maintain the humidity in the field, so as to promote the expansion and development of the false stem of the onion plant. During this period, it is necessary to prevent drought from affecting the formation of yields.

For clay soil, due to the poor permeability of fine texture, planting green onions is not conducive to the growth of root system and green onion white, resulting in thin and long green onion plants and low yield. However, the stalks are compact and firm, crisp and white, and the spicy flavor of the green onion is heavy and strong. Green onions have a wide adaptation to the soil and a greater demand for water, but in the selection of soil, it is better to use the deep, fertile and loose sandy loam soil of the earth house, and in terms of water management, it is necessary to water frequently with little water and keep the soil moist frequently.

Green onions are widely adapted to soil conditions and can be cultivated from sandy loam to clay loam. In order to obtain high quality and high yield, green onions should be planted in dark brown clayey loam soil with loose and granular soil texture, and also on land with deep soil tillage layer and strong water retention ability.

The soil for planting green onions should be fertile, with high organic matter content, good air permeability, and relatively loose soil. The pH is on the medium side, to the best. Clayey soil is best in vegetable gardens, it has a low sand content and good water retention.

Watering and fertilizing are not easy to lose, and nutrients are well retained. The green onions raised have a strong root system and are rich in nutrients.

First of all, we must be familiar with the habits of green onion growth, the root system of green onion is very developed, so the soil suitable for its growth should be very fertile, the content of organic matter is high, and at the same time, it is necessary to achieve good drainage and good air permeability of the soil, in addition, green onions are suitable for growing in neutral soil, only in this way is conducive to the growth of green onions.

To choose first, the soil is more fertile, more humid, preferably the kind of black soil, you can give it some fertilizer before planting, and the green onions should be relatively thick.

Soil with suitable sunlight, fertile soil, and deep layers should be selected, and the pH value should be optimal.

Generally, green onions can be planted in the field, because the soil in the field is very fertile, and the water is suitable and the temperature is suitable when irrigated regularly.

Shallots can be grown in sandy loam and clay loam. Shallots have a strong ability to survive and integrate into the soil, which can meet most of the natural soil environment, such as sandy loam or clay loam. However, the advantages and disadvantages of different soil qualities are different, and the presentation of shallots is also different in different soil qualities.

Based on my work experience, I know that the most suitable soil for growing shallots is a loose clayey loam with particles. Grown in this type of soil, shallots are of higher quality and yield.

Which soil is better to use to grow shallots?

It is better to grow shallots in loose soil and powdery clay loam. Loose soil is beneficial to the growth of shallots, and loose soil is beneficial to the entry of gases and aerobic respiration at the roots of shallots, and on the other hand, it is also beneficial to the maintenance of water. Compared with plate soil, loose soil has a stronger water storage capacity and is very friendly to the growth of shallots.

The granular soil has an effective water and fertilizer storage capacity and has good air permeability. The loose and porous structure of the soil is suitable for growing shallots. The cohesive loam soil has less sand content, fine soil quality, rich and colorful nutrients, slow leakage, strong water-retaining ability, and is more suitable for planting shallots.

How to grow shallots

Sowing: Spring or autumn is the best time to sow shallots, choose rich and soft soil before sowing, and bring a suitable natural environment for the growth of shallots. The day before planting, the soil should be adequately watered and fertilised. It's all about pre-planting preparations.

Transplanting: Before sowing, soak the shallots in 55 water for about 20 minutes, take them out to dry and plant them in the soil. The shallots look quick under the right standards.

About 40 days after planting, if you find that it looks congested, you can plant a part of it first. Before planting, it is also necessary to pour the new soil with mountain spring water, and plant the shallots on the cover plate with fine soil and wait for them to grow.

Feeding: Only the leaves of the shallots are plucked when picking, and they do not have to be uprooted. Then the shallots can grow out again and be picked several times.

The cultivation of shallots is mainly spring ploughing and autumn planting, it likes wet and cold, and the suitable growth temperature is about 12-22 degrees. Shallots should be planted in the leeward of the rising sun, which is suitable for growing in rich, loose, strong drainage pipes and thick soil. Select seeds with high yield, high drought resistance and good quality, mix seeds in advance, promote germination treatment, spread the seeds evenly into the soil, cover the soil and irrigate, ensure the temperature after sowing, water on time, and wait for the bud to sprout.

I think you should choose some sandy soil with good drainage, because if the soil is too wet, it is likely to cause the shallots to rot.

You should choose some soil with good air permeability and water absorption, and it is best to choose some alkaline soil, so that the grown shallots will be particularly strong.

I think you should choose soil with acidity, soil with high humidity, soil with high temperature, soil with wide soil, and fertile soil.

You should choose some fertile soil, the soil is slightly drier, so that it is not easy to grow insects, and the growth may be better.

You don't need special soil to plant green onions, sprinkle onion seeds in the soil at the beginning of spring, cover the soil with your feet.

Four seasons of green onions can be harvested for 2 to 3 years at a time, generally sown in months or months.

Cultivation method. Using a sowing and multiple harvesting, it can be harvested for 2-3 years after a sowing, and 7-8 stubbles can be harvested in a year.

After planting for 2 to 3 years, the plant becomes thinner and grows poorly, so it should be replanted in a selected place, and it is not suitable for continuous cropping.

Cultivation techniques. Fine land preparation, application of sufficient base fertilizer, four seasons onion should be grown in loose and fertile soil, before planting. The land should be fully turned over and the number of pests and diseases should be reduced as much as possible. Use decomposed organic fertilizer as base fertilizer, generally apply 2500 kg per mu, and apply 40kg of ternary compound fertilizer.

Timely sowing, the temperature of the growth of green onions in all seasons is 10-25, and it can be planted all year round, with good quality and strong adaptability. In the summer high temperature season, it can be covered with a sunshade net to cool down, and in winter, it can be covered with a small arch to keep warm. Local perennial planting should be sown in the month, but it can also be sown in the month.

Cultivating strong seedlings, dense planting and shallow planting, whether live broadcast or transplanting, must cultivate strong seedlings, generally about the amount of sowing per mu, so as to achieve uniform precision sowing. The furrow is wide, and too wide is not conducive to management. The transplanting depth should be shallow but not deep, 6-7cm, the density should be dense and not thin, the row spacing should be 15-10cm, and each hole is 3-5 plants.

After planting, water enough to facilitate survival. After planting, shallow hoeing loosens the soil and weeds.

Thin fertilizer and light application, moist soil, shallow distribution of onion roots in all seasons, weak absorption, so not tolerant to thick fertilizer, not tolerant to drought and flood, and weeds are less competitive, field management must achieve thin fertilizer and light application, rain drainage and dry irrigation, and moist soil. The growth period of the four seasons onion is short, the number of stubble, the direct seedling seedlings 60-80d market, the transplanted seedlings 30-40d on the market, the soil should be kept moist after planting, generally about 7 days to water once, combined with top dressing, with urea top dressing. In summer and autumn, when it is dry, it can also often keep semi-ditch water, so that the furrow soil is always moisturized.

Especially in summer, water exchange through furrow irrigation and drainage can reduce soil temperature and prevent high temperature delay and injury to seedlings. In the rainy season, it is necessary to do a good job of ditch cleaning and drainage.

Prevent diseases and insects, and reduce pollution.

Actually, my father planted green onions, and his furnace ash also grew green onions.

The main thing is that the porosity and air permeability are good, and there are not too many requirements in other aspects, whether it is the role of acidity and alkalinity, the green onion itself can grow in any kind of environment, and there is basically no special requirement for the environment.

Green onions must have sufficient water when planting, do not like thick fertilizer, the soil should be moist, the ventilation should be good, and when planting, the distance should be appropriately opened.

The requirements for the soil are particularly strict, it must be guaranteed that there are sufficient nutrients, and we must pay attention to the ventilation is particularly good, there must be a certain humidity, we should regularly fertilize and water them, increase the gap between them, do not get too close, and maintain sufficient sunlight to facilitate the growth of green onions.

Shallots can be grown in sandy loam and clay loam. Shallots have a strong ability to survive and adapt to the soil, and can adapt to most soil environments, such as sandy loam or clay loam.

Alkaline soil should be chosen, and it should be watered and fertilized in a timely manner, and it is also necessary to ensure that the soil is permeable, and it is also necessary to ensure that the soil is fertile, and it is also necessary to maintain sufficient light.

Green onions are not too strict on the soil requirements, but the green onion root group is small, no root hairs, poor fertilizer absorption ability, in order to obtain high yield, it is necessary to choose loose soil, deep soil layer, fertile soil, good drainage, rich in organic matter in the soil cultivation.

Green onions are cultivated in sandy soil, green onions are white and beautiful, but because the soil is too loose, it is easy to collapse after soil cultivation, and the ability to retain water and fertilizer is poor, so the yield of green onions cultivated in sandy soil is relatively low. When cultivating green onions in clay soil, the texture of green onion white is soft, not resistant to storage, spicy taste, gray and dark skin color, which is not conducive to the growth of root system and green onion, and is not convenient for soil management and planning, so it can not obtain high yield.

Green onions are more fertile, especially fully rotted organic fertilizer. Green onions are the most sensitive to nitrogen fertilizer, and the length of the growing and closing stages requires more nitrogen fertilizer, but the later growth stage requires more phosphorus and potassium fertilizers. Therefore, in the application of fertilizer, it should be mainly organic fertilizer, and nitrogen, phosphorus, lead and potassium should be complete.

On the basis of applying sufficient basal fertilizer, scientific and reasonable top dressing can be carried out according to the law of fertilizer demand in each growth period to obtain high yield. Green onions prefer sulfur fertilizers, and soil sulfur deficiency will affect the increase in yield.

Green onions are highly adaptable to the soil, and can be cultivated in both sandy and clay loam soils. Due to the low organic matter content of sandy loam soil and poor water retention and fertility retention, green onions are planted on sandy loam soil, the green onion is rough and loose, the outer dry film layer is more, not brittle and tender, the spicy taste is heavy, and it is not resistant to storage and transportation.

The green onion planted on the clay loam soil, although the ring is dense and firm, the green onion and stupid white are white and crisp, but due to the poor soil aeration, it is not conducive to the development of the root system, the plant is weak, the green onion is white and slender, and the yield is low.

Practice has proved that in order to obtain high quality and high yield, green onions need to choose dark brown clay loam soil with loose soil texture and granularity, and choose plots with deep soil tillage layer, rich organic matter and strong fertilizer and water retention ability for planting.

Since the seedling raising time of the two stubbles is almost in the rainy season, it is necessary to choose a plot that has not been planted with green onions, onions, leeks, garlic and other lily vegetables for more than 3 years with flat land, slightly higher terrain, drought watering and waterlogging drainage.

In addition, the seedling and planting time arrangement: the first crop, the end of June to the beginning of July seedlings, planting in September, the second year in March and April on the market; The second crop, seedlings are raised in mid-September, planted in March and April of the second year, and marketed in early August and September. It is also necessary to apply sufficient basal fertilizer:

Because the root system of green onion seedlings is short and shallow, and the ability to absorb soil nutrients is poor, in order to cultivate strong seedlings, it is necessary to apply enough fully decomposed organic fertilizer and a certain amount of phosphorus and potassium fertilizer. The specific method is to apply 5000 6000 kg of well-rotted and finely chopped manure (except for chicken, duck, sheep manure and raw reed manure and urine) per mu before plowing the land, and prepare the furrow. Before sowing, 25 kg of sulfuric acid tri-element compound fertilizer was sprinkled.

Onion has strong adaptability to the soil and is suitable for planting in the soil with pH value, but because of its short root system, small root group and underdeveloped, it is advisable to choose the plot with fertile soil, deep soil layer, suitable sunlight and good drainage and irrigation. If the soil pH is too high or too low, it will hinder the germination of seeds and affect the normal growth of green onions.

Green onion planting technology:

1. Seedling. The seedbed is broken and leveled, watered, and when there is no stagnant water, it is evenly sown, and covered with clean river sand, sieved fine soil or substrate after sowing. Mulching before emergence is conducive to warming, moisturizing, preventing soil compaction caused by rainwater erosion, and preventing high temperature damage.

2. Land preparation. To apply plantar fertilizer, 100 kg of high-nitrogen and high-potassium compound fertilizer is generally required per 667 m. Deep ploughing of the soil, the plot where the green onions are planted must be deeply cultivated by more than 30 cm, and the soil must be loose.

3. Transplanting. Diseased and weak seedlings, deformed seedlings and miscellaneous plants were eliminated, and planted in three grades according to the size of the seedlings. The cultivation of 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.

4. Management. Water management should master the principle of frequent watering and heavy watering, and irrigation should be gradually reduced in the later stage of onion white growth. In the formation stage of green onions, the soil is cultivated in stages, and the depth of soil cultivation is the first.

15 cm each for the first and second sessions. Combined with watering of sealed soil, about 20 kg of top dressing is applied each time. Green onions grow slowly in high temperature and rainy seasons, so it is not advisable to top dressing too much.

5. Pest control.

The main diseases of green onions are downy mildew, purple spot, rust, anthracnose, sclerotinia and soft rot. The main insect pests are allium thrips, allium nematode disease, submarine flies, noctuidae and so on. No matter what kind of pests and diseases occur, it will seriously affect the good growth of onions, leading to the occurrence and epidemic of pests and diseases, so it is necessary to timely prevent and control the symptoms.