Do leeks need to be fertilized before winter? How to apply basal fertilizer to leeks? When to chase

Leek, also known as flat cabbage, huiyang grass, etc., is a perennial herbaceous plant. Leeks are rich in nutrition, and eating more leeks can nourish yin and kidneys, moisten the intestines and laxative. Leeks have a strong fragrance, and people often use leeks to scramble eggs, wrap buns, dumplings, etc.

In the past, people planted leeks were planted in the open field, only in spring, summer and autumn can eat leeks, the temperature is low in winter, leeks stop growing, and the aboveground part is also frozen to death, and wait until the next spring, the leek roots in the soil can sprout and grow leaves. With the continuous development of greenhouse technology, people can eat fresh and delicious leeks all year round. So how do you fertilize leeks in winter?

How to fertilize leeks in the open field.

After the frost every year, the above-ground leaves of the open field leeks are beaten by frost, and with the continuous decrease in temperature, the aboveground part of the leeks will be frozen to death, and the underground root system is still alive, at this time the management point of the leeks is to raise the roots. Although the above-ground part is dead, in order to make the leeks produce a good harvest in the next year, it is necessary to fertilize the leeks, and many people in our village sprinkle fermented animal manure and human feces and urine in the leek fields, and some dig ditches in the leek rows for fertilization.

How to fertilize leeks in greenhouses in winter.

In winter, when the temperature is low, the leeks planted in the open field will enter the dormant period, but the temperature in the greenhouse can be artificially controlled, and the temperature inside is relatively high, and the leeks can still grow in winter. In order to make the greenhouse leeks grow vigorously in winter, in addition to watering, the most important thing is fertilization, which is mainly nitrogen, phosphorus and potassium compound fertilizer, and can also be applied to fermented human manure. Fertilizer should be applied every time a stubble of leeks is cut, and the coarse leeks grow new leaves.

Summary: Leeks planted in the open field will enter a dormant state in winter, in order to make the leeks grow tender and fat in the next year, it is necessary to fertilize the leeks, and the fertilization can be done with fermented livestock manure or human manure, focusing on root raising; Leeks planted in the greenhouse out of season, due to the high temperature in the shed, leeks continue to grow, and the growth needs to consume a lot of nutrients, so it is necessary to give leeks top dressing, and apply compound fertilizer about 25 kg per mu. Whether it is planting leeks in the open field or planting in greenhouses, it is necessary to fertilize appropriately in winter, which can not only raise roots, but also make leeks grow tender and fat.

Summary. Dear, hello, I am the answer to the Lord is honored to answer for you, you need to fertilize leeks and garlic before winter, no need to ditch and apply, just sprinkle the fermented organic fertilizer evenly into the surface, such as: pig manure, cow manure, chicken and duck manure, cake fertilizer, etc., after this sprinkling of organic fertilizer, not only can play a role in keeping warm and frost, but also play a role in promoting root nourishment, after applying combined with watering nutrients will be slowly absorbed.

Dear, hello, I am the answer to the Lord is honored to answer for you pro, pure late need to fertilize leeks and garlic before the winter banquet, do auspicious plum without ditching, just the fermented organic fertilizer evenly sprinkled into the surface, such as: pig manure, cow dung, chicken and duck manure, cake fertilizer, etc., after this sprinkling of organic fertilizer, not only can play a role in keeping warm and anti-freezing, but also play a role in promoting root nourishment, after applying combined with watering nutrients will be slowly absorbed.

Pro, early in winter, before hail, Lu Fan needs to do a good job of fertilization, so that the leeks can be smoothly wintered, generally before pouring into the winter water, filial piety and top dressing, about 1500 kg of organic fertilizer per mu, about 35 kg of compound fertilizer.

Leek root transplanting is generally in mid-to-late July - early to mid-August, before transplanting, cut off the leaves on the ground, and then water again, remember to be sure to water thoroughlyOnly then can the leek roots be dug up. In the case of digging the roots of leeks, it is better not to hurt their roots. Before the set, it is necessary to apply base fertilizer to the soil, and the farmhouse fertilizer that can be topdressed, and some miscellaneous fertilizers can also be topdressed.

In order to better prevent leeks from raw maggots, you can mix some grass ash in the farmyard manure, or spray 40% phosphine 800 times potion.

Then carry out subsoiling and fine raking of the soil, level the land resources, and then water the permeability, and then you can gradually transplant. In the case of transplanting, it is proposed to use the one-way groove planting method, open a furrow every 40 cm, and the depth of the furrow is about 15 cm, and then gradually plant according to the spacing of 1 cm. The soil covered is most suitable in a way that does not obscure the petioles and leaf identities of the leeks.

Of course, they can be used for cavity. After transplanting, remember to water once and then once three days later to push the leeks to slow down the roots. Leeks planted in early spring, gradually fertilized in July after the wheat harvest, improve fertilizer and water management, if the management method is good, the beginning of autumn can harvest a stubble of leeks, and then fertilize again, there is no need to harvest in the future, to raise roots, so that the root system is developed and thick, and the leeks that grow out can be very rental.

If it is harvested again, it will jeopardize the quality and production of leeks in the coming year.

Farm fertilizer includes farm fertilizer, farm fertilizer, livestock and poultry manure, which has the advantage of being very comprehensive and colorful depending on the nutrients, and is also very easy to sample, low cost, and has a very large working capacity for the improvement of soil fertilizer efficiency, which is a very ideal chemical fertilizer in agricultural planting. The fertility of farmhouse fertilizer is sluggish, lasts for a long time, and has an irreplaceable function as a base fertilizer. However, the application of farmhouse fertilizer must be completely fermented, on the one hand, the nutrients in it can be reasonably digested and absorbed, on the other hand, the farmhouse fertilizer that has not been applied to the fertilizer will release a lot of heat in the case of alcohol, if it is used immediately, it will burn the roots of crops and even kill crops, and at the same time, there are many harmful bacteria and diseases in the unfermented farmhouse fertilizer, which will cause damage to crops.

If you use organic fertilizer, it is best to use strong trees, such as urea solution and permeable irrigation after sprinkling to avoid burning roots and newly cut stubble. Leeks like fertilizer and wetland parks, and every stubble must be fertilized and watered. Some people think that it is a mistake for the Venerable Master and the organic chemical manure of animals to be unclean, but of course you can use organic fertilizer, but you only need to go two or three more times.

In the cultivation technology of growing leeks, unfertilized farm manure must not be applied, especially in human manure and urine manure, if it is immediately increased in leek fieldsFirst, it is not environmentally friendly and hygienic, and secondly, it is highly corrosive to select people's urine, which will erode the leek stem sheath and roots, resulting in rotten sheath and dead roots, which will cause large-scale death of leeks when obvious, which is remembered.

In summer, when the temperature is high, leeks are generally not topdressed. After entering the cool autumn, it is a suitable growth stage for leeks, and it is also a critical period for fertilizer and water management, so timely fertilization should be applied to promote leaf growth and lay a material foundation for the expansion of leek rhizomes and root growth. When topdressing, apply 30 40 kg of three-element compound fertilizer (15-15-15) per mu.

Generally, leeks planted in the current year are not harvested. The overwintering ability of leeks and the growth of the next year mainly depend on the amount of nutrients accumulated by the plants before winter, and the accumulation of nutrients is determined by the growth status in autumn, so the fertilizer and water management at this stage should be grasped.

Leeks are generally harvested in spring and autumn, and leeks are not harvested in hot summer. Apply nitrogen fertilizer 1 or 2 times per harvest to replenish the nutrients taken away by harvesting in time, so that leeks can quickly resume growth, maintain strong growth momentum, and prevent premature plant aging caused by nutrient loss caused by harvesting. The topdressing method is 2 3 days after the leek harvest, when the new leaves grow 2 3 cm high, combined with watering to chase urea 7 9 kg mu.

This should be operated before planting, you can choose pig manure and chicken manure, duck manure after rotting near the leek, or when the soil is ploughed, it is mixed with the soil and spread evenly. Generally speaking, top dressing is to use chemical fertilizer or water-soluble fertilizer, and fertilizer should be applied when cutting off leeks.

Water fertilizer can be used as base fertilizer, so that it is absorbed quickly. Top dressing can be used after cutting vegetables, so as to help grow up.

Hello, pay attention to these three points after the leek harvest.

After the leeks are harvested, it is best to clean up all the residual leaves or other debris in the plot. This can effectively prevent the rot of leek wounds.

After sterilizing the cut leeks, wait until about 3 to 5 days. You can add fertilizer and water to the leeks appropriately. Some phosphorus and potassium fertilizers can be applied, such as fertile leaf phosphorus and potassium fertilizers, which are conducive to the absorption and utilization of leeks.

After adding fertilizer and water to the leeks, it is necessary to protect the leeks from diseases. When the leeks grow to about 2 to 3 cm, they need to be sprayed with fungicide again.

Leeks are generally planted at the beginning of March of the lunar calendar and transplanted before the Mid-Autumn Festival. When transplanting, it should be a little thinner, five or six trees in a pond. The base fertilizer in the leek field should be sufficient, the soil should be loose, the ridge should be fine, the furrow width should be about five feet, the moisture width should be one foot, the moisture depth should be seven or eight inches, and the field should be cool.

Before sowing, it is necessary to soak water with willow leaves, mix a little kerosene, water once, and choke out the mole crickets and pick them up; If there is a tiger, it should also be watered with dimethoate. The favorite fertilizers of leeks are chicken and duck manure, human and animal manure, household ash or cake fertilizer. When using cake fertilizer, the rapeseed cake should be cooked first, diluted with water and then splashed, and the time of fertilization is best in the evening.

Leeks are generally cut once every fifteen days, and they can be cut about 20 times a year. Leek cutting should be done in the morning or evening, and the mud should be cut with a quick knife. When cutting, it is necessary to cut in order, loosen the soil with a nail rake after cutting, and cover the leek pile with a little bit of the fine next to it.

Fertilize once after one or two days. Leeks are drought tolerant and should be watered in the morning if the weather is too dry.

Try to strive for early germination of leeks and market in the morning. In the winter of the previous year, the knife should be harvested early, so that the leaves of the tail knife leek will die naturally, and the leek will be covered with a layer of dung residue, miscellaneous ash and broken grass, and after the spring of the second year, the broken grass and the big block will be crossed out, and then chase the manure, so that the head knife leek can sprout quickly. Leeks have strong bifurcation power, and newly planted leeks can grow to thirty or forty trees per pond in two or three years.

If the density is too high, it should be transplanted in time. Apply plant ash as fertilizer.

Leeks have strong adaptability to soil, sandy soil, loam, and clay soil can be planted, but it is better to have a deep soil layer, loose cultivated layer, and fertile soil. Leeks need a lot of nitrogen, and should be combined with an appropriate amount of phosphorus and potassium fertilizer to improve the yield and quality of its main edible part of the leaves and leaf sheaths. Applying sufficient basal fertilizer is very important for growing leeks.

It is generally applied in combination with land preparation for furrowing. We can buy organic fertilizer such as rotted chickens and cows, and apply them to the soil as base fertilizer before transplanting. Timely top dressing:

Top dressing is only started after transplanting is lived, and topdressing is done every 5-6 days until the beginning of harvesting, and then topdressing can be done once or twice after each harvest. No fertilization is applied when moss is pumped, and fertilization is applied again after flowering to promote tillering. Fertilization time, once a year when the leeks are stopped to be harvested, when the leeks germinate 2 4 cm, combined with the cultivated soil to apply organic fertilizer once.

Nitrogen fertilizer can not be applied alone, the time is mastered after each harvest of leeks 3 4 days after the new leaves grow and then applied, nitrogen, phosphorus, potassium, fully mixed and then applied.

1. The fertility tolerance of leeks is very strong, and the deep ploughing (2 meters of pit packing) before planting is applied enough rotting base fertilizer, and 2000 kg per mu is applied.

2. The principle of fertilization is the combination of organic fertilizer and inorganic fertilizer, and the ratio is not less than 1::1.

3. Fertilization should be carried out according to the growth of leeks, weather, soil dryness and humidity, and the principle of light and diligent application should be adopted, with a seedling height of less than 35 cm, and 500 kg of 2% compound fertilizer per mu.

4 seedlings are more than 35 cm high, 800 kg of 3% decomposed manure per mu, 5 kg of compound fertilizer is added at the same time, 5 when the weather is dry, the dilution factor of fertilizer should be increased.