Potato seedlings have grown very tall, why have they not bloomed?

Potato seedlings grow too tall and grow potatoes have an impact, pay attention to whether there are only stems and leaves without potatoes or small potatoes. There are many reasons for this, mainly the following:

l) Autumn potatoes are used for seeding, and the seedlings emerge too late without germination. The seed of autumn potatoes is good, the growth potential is strong, and the seedlings are in high temperature and long sunshine, which can promote the growth of stems and leaves, but most of the nutrients are used for the growth of stems and leaves, and the top of the stolons can not get enough nutrients, so they can not be expanded or enlarged very little. It is even worse if the emergence of seedlings is delayed, coupled with too much forced fertilizer.

2) Forced fertilizer too late or too much nitrogen fertilizer. If 50-60 catties of urea are applied per mu during the flowering period, it is likely to cause the stems and leaves to grow and lodging, so that there will be no potatoes or few potatoes.

3) High soil fertilizer density. Potatoes are planted on fertile land, if the density is too large, the plants will grow upwards in order to win glory after emergence, resulting in mutual shading, insufficient light (click to view potato light requirements), the plants are slender, photosynthesis is weak, and respiration consumes more nutrients, and no or little nutrients are transported to the tuber to accumulate.

4) Too much nitrogen fertilizer, insufficient magnesium fertilizer, or improper ratio of nitrogen, phosphorus and potassium fertilizer in the soil may also cause the growth of potatoes without tubers.

5) It is related to the variety and caste. Varieties with unlimited stem growth are prone to overgrowth, such as Mira, Xintaro No. 3, Sijinhuang, Kebao, Aguo and other late-maturing varieties, while generally early-maturing varieties such as Dutch No. 7 potato have less overgrowth. Seed potatoes with good seed properties are more likely to grow than degraded seed potatoes.

Apply some fertilizer, it seems that it does not bloom.

The reason why potato seedlings grow.

1. High planting density: the potato seedlings grow long, which may be due to the large planting density, the large number of plants, the mutual shading between branches and leaves, and the affected lighting, which will lead to the growth of potato seedlings.

2. Overwatering: If you water too much, it will be supplied to the stems and leaves in large quantities, causing the potato seedlings to grow wildly and cause them to grow.

3. Improper fertilization: too much fertilization or too much nitrogen fertilizer will cause growth.

The solution to growing too tall:

1. Pinch the tip pruning: When the potato seedlings grow too high, they need to pinch the tip and prune, and they cannot be allowed to grow, or the nutrients will be supplied to the aboveground part to grow wildly, and the underground tubers will be affected. It is necessary to pinch off the part that grows too high to reduce the consumption of nutrients, which can promote the growth of side branches and also facilitate the growth of underground tubers.

2. Drug control: It can also be controlled by drugs to avoid the growth of potato seedlings too high, and paclobutrazol can be sprayed.

Oxybutramol and other growth regulators are controlled, sprayed once every seven days or so, and can be controlled by spraying twice in a row.

3. Adjust maintenance: It is also necessary to adjust the maintenance method, reduce the application of nitrogen fertilizer, and apply fertilizer reasonably to ensure the balance of various nutrients. It is also necessary to control watering to avoid water accumulation. The temperature should not be too high and keep it within the appropriate range.

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Potatoes not flowering may be the conditions of the planting environment are not suitable, but potatoes will bear fruit without flowering.

How to manage potatoes to achieve high yields.

1. Treat the soil: If you want to have a high yield of potatoes, you must treat the soil when planting, first turn it deep to ensure the air permeability of the soil, and remove the weeds and debris of the plot, so that the tubers can germinate better in the later stage.

2. Reasonable fertilization: If you want it to have a high yield, you can't do without fertilizer. During the growth process, it is necessary to apply Bika potassium fertilizer, nitrogen fertilizer and phosphate fertilizer in time. Nutrient tubers can germinate better. Be sure to apply different fertilizers at different stages of growth to ensure that the nutrients are sufficient.

3. Pest control: Potatoes are susceptible to early blight, black shin disease and late blight during the growth period, as well as aphids, ground tigers, needleworms and other insect pests, which will seriously affect the yield. During the management period, it is necessary to pay attention to the prevention and control of pests and diseases, and spray drugs in time to control them.

The symptoms of fertilizer deficiency after potato emergence are as follows:

When potatoes are deficient in nitrogen fertilizer, the plants are short, and the stems are short and thin. The leaves are small, pale green, then yellow, and first show yellow, orange, red and other colors on the old leaves, and then transfer to the young leaves; Premature leaf shedding, reduced leaf count, premature plant senescence, resulting in small bacteria and low yield. The remedy for nitrogen deficiency is to apply fast-acting nitrogen fertilizers, such as ammonium nitrate, urea, and fermented and rotten human and animal manure.

When the potato plant is deficient in phosphorus, the stem and leaf stop growing, the leaves roll up, and purple spots form on the leaf surface, and then the leaf tissue dies rapidly, and the color of the dry leaves becomes dark or black. The general leap will indeed affect the development of the root system and the growth of seedlings, the flowering leaves are shrunken, the leaf color is dark green, and the basal leaves become purple when the leaf is serious, the plant is erect, the petioles, leaflets and leaves are around, not to the horizontal direction, the leaflet area is reduced, the color is dark green, the flowering and maturity period is delayed, and the rust spots appear inside the tuber.

Symptoms of potassium deficiency in potato plants appear later, usually at the tuber formation stage. When potassium is deficient, the leaves are shrunk, the leaf winds and the leaf tips are shrunk, and even the dead bears are bear-shaped, the dead tissues are brown, there are bronze-colored spots between the leaf veins, the upper internodes of the stem are shortened, and the stems and leaves are dried up and shrunk prematurely, which seriously reduces the yield.

The fluidity of phosphorus and potassium fertilizers in the soil is small, so when phosphorus and potassium fertilizers are lacking at the seedling stage, they should be remedied by imposing fertilizer on the rhizosphere or extraroots. In the middle and late stages, it should be applied deeply between the rows to better absorb the root system. In order to avoid the growth and development of phosphorus and potassium, it is best to mix phosphorus and potassium fertilizer with organic fertilizer and apply it as a cover fertilizer furrow, so that the plant can be smoothly absorbed and utilized during the whole growth period.

When the potato seedlings grow too tall, the water should be controlled until the seedlings appear to be drought, and then watered appropriately. Generally, potato seedlings should not be watered before flowering, after seeing flowers in the case of drought and no rain, they can be watered once every 10 days, and generally watered 2-3 times to mature, and there will be no phenomenon of overgrowth.

Potatoes are strong when they emerge from seedlings, and water and fertilizer should be controlled when they grow tall, and the top should be pinched at the appropriate time to control the height of potato seedlings to make him grow strong.

I think the reason why potato seedlings are not strong and grow tall may be due to a lack of fertilizer, or the seeds are too close together.

I planted two potatoes.

All dead. Woooooooo

Is it ground planted? Control water and see more light.

If the potato seedlings are not strong, please give us guidance and see what remedies there are, and we will do it.

The non-flowering of potatoes may be due to the unsuitable conditions of the planting environment, and the flowering of potatoes (potatoes) is not good for production in terms of yield. Because potatoes (made of potato sails) consume many nutrients in flowering, and if they bear fruit, they consume even more. After observation, the potato (potato) varieties with lush flowering have a yield increase of more than 10% compared with those that are not picked, so they should be picked in years with more flowers.

From the perspective of the species history, flowering is mostly a sign of good species, and the flowering of seed potatoes that have returned to brightness and degradation is very rare, and some do not bloom at all. Flowering is also necessary if propagated by seeds or seeded with raw potatoes, and seedlings cannot be cultivated without flowering and fruiting.

Summary. Dear, potato seedlings may not grow due to problems such as light, moisture, nutrition or temperature, which need to be adjusted to make them grow quickly.

Dear, potato seedlings may not grow due to problems such as light, moisture, nutrition or temperature, which need to be adjusted to make them grow quickly.

2.Moisture: Potato seedlings need the right amount of water, but they should not be overwatered, otherwise it will cause too much moisture in the roots, damage the roots, and affect growth.

It is recommended to check the soil moisture before each watering and only water when the soil is dry.

3.Nutrition: Potato seedlings need sufficient nutrients, and organic fertilizers or liquid fertilizers can be added to the soil to increase soil fertility.

4.Temperature: The suitable temperature for the growth of potato seedlings is between 15 and 25, if the temperature is too high or too low, it will affect the growth.

Dear, you can place some green plants around to increase the humidity of the air and help the potato seedlings grow.

Do you do with urea drip irrigation.

Pro, you can drip irrigation with urea.

How much does an acre of land use.

The use of urea requires certain skills to be mastered, and it cannot be used excessively, otherwise it will cause burns to the roots of the plant and even death.

At the same time, it is necessary to cooperate with other measures to promote the growth of potato seedlings.

Is there any other way.

The amount per mu of land needs to be determined on a case-by-case basis.

It is generally recommended to use urea 10-15 kg.

The other way is to fertilize and water properly.

It is also necessary to pay attention to the prevention and control of pests and diseases, keep the soil soft and aerate, and provide a good growth environment for potato seedlings.

1. Dormant period.

Newly harvested potato tubers must go through a certain period of time before germination under suitable conditions for sock celebration, which is the dormant period, and this phenomenon is dormant. In terms of production, it is regarded as entering the dormant period when harvesting after the decay of stems and leaves, and the length of the dormancy period is calculated from the number of days when the tuber is mature and harvested to the bud eye begins to germinate young shoots. The length of the dormancy period is determined by the characteristics of the breed and the temperature at which it is stored.

2. Germination period.

From the time the seed potatoes are released from dormancy, germination begins at the bud eyes, and the germination period is not until the seedlings are unearthed.

3. Seedling stage.

From the emergence of the seedling to the 8th or 6th leaf flattening is the seedling stage, also known as the cluster tree.

4. Tree development period.

The main stem growth is completed and the lateral stem and leaf growth begins, and the capping leaf (16th or 12th leaf flattened) is formed from the clump to the main stem.

5. Potato setting period.

When the main stem growth is completed and the lateral stem and leaf growth begins, and the dry matter content of the stem, leaf and tuber reaches a flat balance, it enters the tuber and parsley growth.

6. Maturity period.

When 50 years of the plant have yellow stems and leaves, it will reach maturity. At this time, the aboveground and underground parts of the potato have stopped growing.

1. Spraying: If the potato seedlings grow too tall, you can spray dwarfing agents such as uniconazole to them. 2. Water control

Potato seedlings should not be watered before flowering, and watering should be carried out after flowering according to the dryness and wetness of the soil. 3. Light: Ensure that potato seedlings receive at least 7 hours of light every day.

4. Fertilization: During the growth period of potatoes, nitrogen fertilizer or urea should be applied 1-2 times.

1. Spray the agent

Potato seedlings do not need to be cut off when they grow too high or hall height, they need to be sprayed with dwarfing agents such as uniconazole and paclobutrazol to the plants, which can be sprayed once every other week, and the group wheel controls the growth height of potatoes to make them dwarf, and when spraying potato seedlings, it is best to choose when the weather is sunny and windless, so as to avoid the wind blowing the medicine away.

2. Control watering

Potato seedlings should not be watered before flowering, so as not to grow poorly, and after the potato seedlings flower, you need to adjust the frequency of watering according to the weather conditions, you can water every ten days when there is no rain and drought, and after the rainstorm, you should drain the water in the soil for the potato seedlings.

3. Lighting conditions

When cultivating potato seedlings, it is necessary to ensure that the plants receive at least 7 hours of light every day to promote their photosynthesis, so as to avoid the phenomenon of potato seedlings growing up, and when the light is too strong, it is necessary to build a shade net on the potato seedlings to block the sunlight for the plants and make them grow healthily.

4. Fertilization management

Potato seedlings need sufficient nutrients in the growth process, when breeding potato seedlings, nitrogen fertilizer or urea needs to be applied 1-2 times for the plant to meet the growth needs of the plant, and when the potato tuber is expanded, spray foliar fertilizer such as potassium dihydrogen phosphate on its flowers and leaves, so that the number of fruits of the plant increases.