What fertilizer is good for leeks? What fertilizer is good for leeks?

Leek fertilization generally has organic fertilizer and inorganic fertilizer, organic fertilizer is mainly used after fermentation of farmhouse fertilizer, and it is also a good base fertilizer for leeks.

Leek top dressing, when the leeks grow to about 5-6 cm and 10 cm, two top dressing, top dressing is mainly high-nitrogen compound fertilizer.

Leek top dressing according to the season, spring, summer and autumn should be carried out, the temperature rises in spring, leeks begin to return to green, at this time watering and top dressing, maintenance of leek roots, after the new leaves grow, to the summer and then two times of top dressing, respectively, with high nitrogen fertilizer and high nitrogen and potassium fertilizer for top dressing. In autumn, leeks should accumulate nutrients to prepare for winter, at this time it is advisable to harvest less, strengthen fertilizer and water, and apply an appropriate amount of compound fertilizer.

In short, leeks are very well managed and planted, adaptable, not requiring high fertilizer and water, resistant to cold and heat, and are planted in many places across the country, making them a delicacy on the table.

Bottom fertilizer. Leeks can be picked continuously and grow fast, so sufficient bottom fertilizer is the key to high leek yield. 3,000 kg of fully decomposed farmhouse fertilizer and 40 kg of compound fertilizer can be applied per mu.

2. Top dressing. Leeks should be topdressed once after each harvest, in order to prevent bacterial infectionEach topdressing should be carried out 2 days after harvesting, and 10 kg of urea can be topdressed per mu.

3. Spray foliar fertilizer. In order to improve the utilization rate of fertilizer and further improve the yield and quality of leeks, urea that can be sprayed during the growth period of leeks can be sprayed on the third day after each harvest to have a better effect, and foliar fertilizer can be sprayed every 10 days.

In the seedling stage, the amount of nutrients consumed is also relatively small because the growth of the plant is smaller. In the year of planting, because the root system is in the early stage of development, it is necessary to absorb nutrients to restore growth and promote growth, but the whole plant has not yet fully developed, and there are fewer tillers in the tree, so the amount of nutrients absorbed and utilized is still less.

Leeks grow to the second to fourth year, this period is the stage when the tillering ability of leek plants is the strongest, the most vigorous growth, and the growth period with the highest yield, so the amount of nutrients required for growth and development is also the largest.

After the leek grows to the fifth year, because it has been harvested many times a year, and has been harvested continuously for many years, the fertility of the soil, especially the content of organic nutrients, will inevitably weaken the growth momentum of the leek plant because of excessive consumption, that is, it is often said that there is a phenomenon of premature aging and weakness. Therefore, after the growth of leeks enters the fifth year, it is necessary to strengthen fertilization, especially to increase the application of organic fertilizer to fertilize the soil and enhance the growth stamina of leeks, so that the yield of leeks will endure for a long time.

Planting leeks should avoid applying these three fertilizers.

1. Nitrate nitrogen fertilizer.

Leeks like nitrogen, nitrogen fertilizer for the growth of leeks has played an important role in promoting, but in the application of nitrate nitrogen fertilizer should be noted, the concentration is too high easy to burn roots and fertilizer damage, so if the application of nitrate nitrogen fertilizer should be controlled, not too much at one time, even on cloudy days to reduce the amount of use, can not be mixed with compound fertilizer and water soluble application.

2. Undecomposed farmhouse fertilizer (also known as organic fertilizer).

1) Farm fertilizer includes human manure, manure, livestock and poultry manure, etc., its advantage is that the nutrients are relatively comprehensive, abundant, easy to take materials, low production cost, and also has a very large ability to improve soil fertility, which is a very ideal fertilizer for crop planting. The fertilizer effect of farmhouse fertilizer is slow and lasts for a long time, and it has an irreplaceable role as a base fertilizer.

2) But the use of farmhouse fertilizer needs to be fully decomposed, on the one hand, the nutrients in it can be effectively absorbed, on the other hand, the unrotted farmhouse fertilizer will release a lot of heat in the process of fermentation, if directly applied will burn the roots of crops and even burn the crops, at the same time, there are many harmful bacteria and pests and diseases in the unrotted farmhouse fertilizer, which will cause harm to crops.

3) Therefore, the farmhouse manure can only be used after it is fully decomposed, that is, it is piled up for more than 60 days, it becomes black and rotten, there is no big lumps, and it feels loose and soft when grasped by hand.

3. Ammonium carbonate (ammonium bicarbonate).

Ammonium carbonate is also often used as a nitrogen fertilizer, which can promote the photosynthesis of crops and promote seedling growth. But it has a disadvantage, that is, it is volatile, the utilization rate of nitrogen is relatively low, and if it is not properly disposed of, there is too much residue on the surface, and the ammonia formed by volatilization will smoke the leaves of leeks, so it should be applied in a ditch and covered with soil in time.

Compound fertilizer, because this fertilizer is particularly natural, and there are not many additives, people will not affect their health after eating, and this fertilizer is also particularly nutritious, which can make leeks grow better.

Plant ash. This fertilizer can speed up their growth and also stop the growth of weeds. Provide them with nutrients so that they can grow stronger.

In this way, when the vegetables are ripe, they don't need to go to the vegetable market to buy, so let's talk about the three things used in the leek field, which can make the leek leaves wide and thick, which is better than any fertilizer!

Feces. As the most pure natural fertilizer, it has a great effect on the growth of leeks.

When it is first planted, you can add some nitrogen fertilizer, which can make its roots stronger, and in the future growth process, it can absorb a lot of water and nutrients. After it grows for about a week, you can add some phosphorus fertilizer, which can integrate the pH of the soil and be more suitable for its growth.

Answer 1: Leek is a perennial root vegetable, which requires a large amount of fertilizer during the growth period, and after each harvest, it also needs to be topdressed to promote the growth of leeks. If you only need leek leaves, you need to apply nitrogen fertilizer, and if you want to flower and bear fruit, you need to apply phosphorus fertilizer, potassium fertilizer before flowering.

2. The first year: before sowing, deep ploughing, and then apply 5000kg of decomposed organic fertilizer, 20kg of ammonium sulfate, 20kg of diammonia sulfate per mu, and at the same time, 2kg of 5% phosphine granules per mu can be used, and 10-15kg of dry fine soil is mixed and sprinkled to control leek maggots. After the emergence of seedlings, if the seedlings do not grow well, they can be sprayed with foliar fertilizer or 5kg of urea per mu.

Wait until the seedlings grow to a certain height for transplanting, before transplanting, apply 7000kg of rotted farmhouse fertilizer, 50kg of compound fertilizer, and 2kg of zinc sulfate per mu. After planting, after the end of the seedling period, a top dressing is carried out, and about 20kg of urea or diamine phosphate is applied per mu.

3. The second year and beyond:

1) When the leeks are green, 4000kg of human feces or 20kg of urea are applied per mu of land at the same time as cultivating to promote the recovery of leek growth.

2) Top dressing is carried out 3-4 days after harvesting leeks, and 3000kg of pig urine manure of 3000kg per mu is applied, or 80kg of rotted cake fertilizer, or 20kg of urea, or 20kg of ammonium sulfate compound fertilizer. Be careful not to rush to water, otherwise the leek roots will rot easily.

3) Before leeks are sprouted, apply 15-20kg of urea per mu. After entering autumn, it is the most vigorous period for the growth of leeks, so during the period before and after the beginning of autumn, 300-400kg of cake fertilizer is applied per mu to raise roots. When watering frozen water, apply 10-15kg of ternary compound fertilizer per mu.

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The best fertilizer for growing leeks is organic fertilizer, as this effectively avoids soil acidification in the growing area. In late autumn and early spring, more human manure, chicken manure, and pig manure should be applied, which can not only help increase the ground temperature, but also allow leeks to be harvested early and put on the market, killing two birds with one stone.

When growing leeks by yourself, you can choose leeks to like chicken and duck manure, human and animal manure, household ash or cake fertilizer, generally speaking, it is not recommended to use chemical fertilizers to grow leeks.

Leek planting is also important for the choice of soil, and leeks are suitable for growing in loose, fertile and deep soil plots. The soil is also more suitable for the growth of leeks than the soil with higher soil drainage. For base fertilizer, it is best to use well-rotted cow manure, pig manure and other animal manure in our rural areas, and at the same time mix some potassium sulfate compound fertilizer as base fertilizer.

Generally, 2500 kg of rotting farmhouse fertilizer + 15 kg of potassium sulfate compound fertilizer can be applied together per mu.

Leeks can be sprinkled with plant ash, which can not only improve nutrition, but also make wounds heal quickly and prevent bacterial infections.

Note: Grass ash is alkaline, and must not be mixed with human and animal manure, manure, ammonium sulfate, and ammonium bicarbonate, so as not to cause nitrogen volatilization and failure. In rural areas, many people pour plant ash directly on the farmhouse manure, and then ferment together, which is the wrong way to operate, and plant ash is best used alone.

What fertilizer can leeks grow vigorously and what fertilizers do leeks need.

If you want leeks to grow well, you need to understand the law of nutrient demand during its growth, and then carry out scientific fertilization, as follows:

Fertilizer, leek planting base fertilizer must be sufficient, which is to ensure the nutrient needs of leeks throughout the growth period, determined by agricultural professionals, can be an acre of land and 667 square meters of organic fertilizer after decomposition and fermentation of about 4000 kilograms, if the soil is relatively short of fertilizer can be applied to 40-20 kilograms of sulfur-based compound fertilizer.

2.Top dressing, leek top dressing time generally to 5-10 cm when the time begins, at this time the nutrient demand rises, at this time can be water-soluble fertilizer for root irrigation top dressing, or spray foliar fertilizer, basically these two fertilizers if the quality is qualified, the nutrients can meet the growth needs of leeks, such as boron B, copper Cu, iron Fe and other elements required for the growth of leeks. Poly Wuba water-soluble fertilizer can be used, which can be sprayed flush to supplement nutrients through the foliage.

3.Humic acids, because leeks are vegetables that are propagated by the root system, for this reason, if you want leeks to grow well, the soil can not be compacted or acidified, you can apply some humic acids such as potassium fulvic acid from polywuba mineral source when turning the ground and applying bottom fertilizer to improve the soil.

Leek foliar fertilizer usage.

If you use foliar fertilizer for leek topdressing, the usage is also relatively simple, and the amount of mu and water is controlled, as follows:

1.Concentration, the use of leek foliar fertilizer concentration requirements can only be low can not be high, can not think of high concentration of nutrients, can make leeks grow better and other ideas, this is wrong, the general foliar fertilizer 30g need to be mixed with about 20 kg of water, fully dissolved and stirred, specifically see the specifications of the amount of water.

2.Time, spraying foliar fertilizer on leeks is recommended to be planted in the morning and evening to reduce foliar evaporation, the time is just the opposite in winter, the temperature is low in winter, at this time it can be better before ten o'clock in the morning to four o'clock in the afternoon, the temperature in the shed is high, and the efficiency of leeks to absorb nutrients is also high.

3.The growth time of each stubble of leeks is short, so it is enough to spray foliar fertilizer on leeks every ten days.

How to make leeks grow thicker and thicker: When planting leeks, just sprinkle a little bit of it, which is better than the fertilizer you bought.

If leeks do not need to flower and bear fruit, but only need to grow leaves, nitrogen fertilizers such as urea, human urine, etc. If you need to flower and bear fruit, you should apply some phosphorus and potassium fertilizers before flowering, such as plant ash, other fertilizers that are well decommodated, etc.

In addition to the application of base fertilizer, leeks also need to be "knife top dressing", that is, top dressing 1 2 times after each harvest. Top dressing should be carried out 3 4 days after harvesting, and when the wound of harvest heals and new leaves grow, it is easy to cause fertilizer damage immediately after harvesting. Top dressing should be based on fast-acting nitrogen fertilizer and human manure and urine, which can be applied with water or ditching, and the manure dilute water must be fully rotted to prevent maggots.

The seedling land should be convenient for drainage and irrigation, and the sandy loam or clay soil soil that has not been planted with onion and garlic vegetables in the past 1-2 years should be deeply cultivated before winter, watered with frozen water, and raked and cultivated in the next spring to protect moisture. Apply 4-5 cubic meters of rotting farmhouse fertilizer per mu. In order to prevent leek maggots, 5% phosphine granules can be used 2kg per mu, add 10-15kg of dry fine soil, evenly sprinkled, fine rake after shallow tillage, leveling furrow, furrow width, length 7-10m, easy to manage.

Leeks are good for applying grass ash fertilizer.

Grass ash is the ash left behind after the plant burns, plant ash is a high-quality potassium fertilizer (the main component is potassium carbonate), and leeks are a potassium-loving crop, so applying plant ash can promote the growth of leeks. Secondly, plant ash is also rich in mineral elements, such as iron, calcium, magnesium, boron, zinc, etc., to leeks can prevent leeks from "deficiency" reed, can regulate the metabolism of plants, and the taste of leeks with plant ash is better.

Many people will have the phenomenon of "cutting more and more fine" when planting leeks, the main reason is that the root system of leeks is weak and the root system is not developed, and the more developed the root system of leeks, the stronger the regeneration ability. In addition to providing nutrients directly, plant ash can also improve the soil, and the soil will be looser when applied with plant ash, which is conducive to the development of leek roots. Leeks have a well-developed root system and are more able to absorb water and nutrients.

Types of leeks

1. Fine-leaved leeks.

Fine-leaved leeks belong to the traditional vegetables of the farmer's family, also called local fine leeks, the leaf color is light green and relatively thin, the upper part is bent, the quality is soft, the fiber is more, although the yield is low, but the leek fragrance is relatively strong, the taste is good, soft and fragrant, so the rural people are most often planted. Local fine leeks grow fast, tillers are strong, the plants are not high, the leaves are not long, heat-resistant, cold-resistant, and wind-resistant, often planted in the open air, and flower stems can be harvested.

2. Large-leaved leeks.

This type of leek is a hybrid variety, and we also call it large-leaf leek, sweet and crisp leek. Compared with local fine-leaved leeks, the leaf color is dark green, the leaves are thick and wide, and the taste is crisp and sweet. Large-leaved leeks can be cultivated in the open field, or they can be planted in solar greenhouses, plastic greenhouses, etc.

3. Broad-leaved leeks.

This kind of leek is called a big leek, and some places are called Pifeng pants, the leaf color is light green, and the leaves are thick and soft. Large leeks have fast growth speed, strong tillering ability, heat resistance, cold resistance, wind and rain resistance, but because of the light taste of large leeks, they generally do not eat lightly, but mainly harvest leek flowers and leek roots.