Do leeks have adventitious roots, and do the roots of leeks belong to the straight root system

The roots of leeks do not belong to the straight root system.

The straight root system is found in dicots, which is characterized by a distinct and well-developed taproot with a vertical downward orientation, and the lateral roots are grape-like around the taproot.

Generally, the straight root system penetrates deep into the soil, and its lateral roots extend widely in the soil, woody plants.

The root system can extend up to 10 to 18 m in diameter, often exceeding the canopy.

several times; And camel spines that live in desert areas.

It can be up to 20 meters deep into the ground to absorb groundwater.

Root classification

The sum of plant roots is called the root system. It is divided into taproot system and fibrous root system.

Fibrous root system. The fibrous root system of plants is made up of many adventitious roots (roots produced by the hypocotyl and the lower realm) of thick and detailed thickness. The taproot cannot be clearly distinguished in the root system (this is caused by the cessation or slow growth of the radicle after the taproot has grown for a period of time).

Most monocots.

All are fibrous roots.

Such as sorghum (Sorghum vulgarepers), fragrant aconite.

cyperus rotundusl.etc. The roots of grasses such as rice, wheat, various weeds, alfalfa, onions, garlic, lilies, corn, daffodils, etc., are fibrous root systems.

The fibrous root system is characterized by the early degeneration of the taproot that occurs when the seed germinates, and the growth of clumps of whisker-like roots from the base of the stem, which do not come from the old roots, but from the base of the stem, and are called adventitious roots.

The number of adventitious roots is staggering, like a mature ryegrass.

There are 15 million roots and root branches, with a total root length of 644 km and a root surface area.

There is a large volleyball court and cubic meters of soil.

No, because leeks bought from the supermarket have no roots, so they cannot take root.

Methods of propagation of leeks:

Leeks are also known as lazy vegetables because they can be harvested all year round when they are planted at one time. So how do leeks reproduce?

1. The propagation method of leeks has a seed propagation method, if we have just started to plant leeks, but the seed reproduction time is relatively long, and the leeks in the leek seeds that have just grown out are as thin as hair, and it will take about 1 to 2 years of growth to be normal, like the leeks sold outside.

2. Leeks can also be propagated by roots. And it can be harvested faster, so if we want to propagate, it is best to use old leek roots for root propagation. Buy or ask for it from others, the old roots of leeks, 3, we first separate it, generally two to three pinches of leeks dug up with our hands to divide it into two or three pinches, and then use scissors to cut off the long roots, which is conducive to its rooting.

4. Leeks are perennial root plants, and many heads will be separated from the roots every year, so we must ensure a certain plant spacing and row spacing.

5. The soil for growing leeks must be fertile and deep, more than 20 cm. First, use a shovel to loosen the soil, which is conducive to the rooting and respiration of leeks.

6. Plant the divided leeks one by one, and make them empty according to the plant spacing and row spacing, so that the leeks can have the conditions for rooting. After planting the leeks, press the soil tightly. Pour a little water and let the soil cover the roots tightly. That's it.

7. Leeks are short-day plants, so the requirements for sunlight are not so strict, as long as there are 2 to 3 hours of sunlight a day, it is very good, so the north-facing balcony can also be planted leek flower pots. Leeks are known as "lazy vegetables", and they are not resistant to waterlogging, so don't let the pots be filled with water on rainy days, and it's okay to dry some. There is also a high requirement for fertilizer and water for leeks, so it is recommended to use Trim special fertilizer, especially in the peak season of growth, waiting for the harvest.

Fresh leeks bought in the market are not allowed to take root, because leeks can only grow if they are planted from seeds or if you buy leeks with leek roots.

1. Planting time chain brigade.

Leeks are generally planted in spring or autumn, the specific time is between March and May and October November, spring planting should not be too early, because the soil has not yet thawed, the root system can not fully absorb the nutrients in the soil, autumn should not be too late, and the plant is not cold-tolerant, can not survive the winter.

2. Soil selection.

The soil is fertile and loose slightly acidic soil, generally with humus layer leaf soil and grass and wood plaster soil, which can be covered with a layer of plastic film after the soil is prepared, which is conducive to keeping the water in the soil from evaporation, and the nutrients in the soil are not lost and slow down, so that the leek roots can grow rapidly after planting.

Leek planting tips.

1. Soak to promote germination.

Leeks are generally planted in spring and autumn when the temperature is more than the shed, the seeds need to be soaked in warm water before planting, and the germination treatment is carried out, and the radicle can be sown after it is born, and the neutral sandy soil is preferred, which is conducive to the survival of the plant.

2. Watering and fixing roots.

When planting leeks, the germinated seeds should be evenly sprinkled on the soil surface, then covered with the upper soil, watered thoroughly to fix the roots, and then covered the entire planting area with film to achieve the purpose of water retention and moisture. In addition, in summer, it is necessary to pay attention to drainage and waterlogging to prevent the roots of leek plants from soaking and rotting, which will affect the growth of plants.

1. Choose leek roots. It is recommended to grow leek roots for about 2 years, because 2-year-old leek roots are in a vigorous period and have well-developed roots, which is very conducive to growth.

2. Prune the leek roots. Before planting, the leek roots should be pruned, the long roots should be cut off, and the old roots of about 4 to 5 cm should be left to remove some weak roots, aging and diseased roots, and try to retain those roots that look relatively robust, so that the roots of the leek bridge socks will germinate and grow rapidly in a short time.

3. Transplanting time. Leek root transplanting is generally in late July to early August, if it is not a summer sown leek, then when the seedlings grow to 4-5 leaves, the plant height of 18-20cm can be planted.

4. Water and fertilizer management. In addition to the application of foot fertilizer before transplanting, after 3 days after each harvesting, it is necessary to water human urine manure, and then water water, and if there is a condition, you can apply more organic fertilizers such as chicken and duck manure, sheep manure, and plant ash. After fertilization, the soil is deeply turned and raked, and after the ground is leveled, it is watered again and then permeable, and you can start planting.

5. Planting method. Take a single hole for sowing, each hole can be planted 2-3 trees, while transplanting the row spacing is 15-20 cm away, and the hole distance is controlled at 10-15 cm. Leeks are relatively easy to survive, and if they are properly managed, they can basically obtain bumper yields by paying attention to timely topdressing and controlling pests and diseases.

6. Harvesting. The leeks planted in that year are generally not harvested, mainly to raise their rhizomes. After the second year, you can start cutting leeks, and remember to fertilize them every other time, so that they can grow fast and well.

Select leeks to remove the roots and eat half an inch. In general, the roots of leeks are where the most pesticide residues are located. The pest "leek maggot", which brings fatal harm to leeks, lives underground, and specifically bites the roots of leeks, which will cause the roots of leeks to rot and break and not grow.

The general spraying of pesticides is ineffective against this pest, and the pesticide must be applied to the ground and irrigated on the roots of leeks in order to effectively remove the "leek maggot".