Why don t the pumpkins I grow keep bearing? What should I do?

Seedlings of seed breeding, most of them are uncertain, encounter sufficient fertilizer, unsuitable climate, what method do you use (top seedlings, shelves, increase sunlight, add phosphorus, potassium fertilizer, watering), female flowers may not develop. Topping, pumpkin is needed topping to increase male and female flowers and strengthen pollination and fertilization. If you don't top it in time, this will also cause the pumpkin to just grow vines but not bear fruit; The wild growth of vines consumes too much nutrients in the soil, resulting in insufficient nutrients for pumpkins, and many pumpkins turn into melons due to insufficient nutrients after flowering and pollination.

Therefore, during the fruit-setting period of pumpkin, nitrogen fertilizer should be reduced, and phosphorus and potassium fertilizer should be applied together to promote the expansion of pumpkin.

Pumpkins are sun-loving plants that also need a certain amount of ventilation. The pumpkins in the rural fields are full of sunlight, but they spread on the ground and have poor ventilation, which leads to melons that can bear melons but not much. Sometimes the plant has only male or female flowers.

Of course, only one type of flower will definitely not bear fruit if certain measures are not taken. For example, if the soil is too fertile, the plant is prone to only female flowers, and if the land is too poor, the plant will only have male flowers.

It is also related to the early and late planting, and there are also varieties with few or no male flowers when the pistil opens, and the small melon cannot be stopped. At this time, artificial pollination can increase the fruit law! The long vines can be repaired or not managed.

<> in a high temperature and rainy climate, it is very suitable for the growth of pumpkin plants, which will inevitably cause the plants to only grow seedlings and not produce melons. In this way, not only will the plant grow and absorb a lot of nutrients, but it will also be detrimental to the flowering of pumpkins. So when the melon seedlings grow to ten to twelve nodes, it is necessary to control the lack of sunlight, pumpkin is a sun-loving crop, sufficient light, good growth, fast growth and good quality of fruits, if the vines are too dense, affecting the light, it is not good for the flowering and fruiting of pumpkin.

Pumpkins are sun-loving plants, and the more sunlight they have, the better they grow. Therefore, when the branches of the pumpkin grow to 2 meters long, the pumpkin should be guided to the trellis, which has sufficient light, good air permeability, and can also reduce the occurrence of pests and diseases.

Too much nitrogen fertilizer is used, causing melon vines to grow vigorously Once the nitrogen fertilizer is excessive, it is easy to cause melon vines to grow, but there are few melons The pumpkin vine leaves are too dense and too vigorous, and when flowering, the leaves cover the pumpkin flowers, and the dense bees can't pollinate, and the leaves are too many and not ventilated, and the pumpkin flowers are difficult to pollinate Once the pumpkin vine grows vigorously and does not bear melons, you can use a sickle to cut off some of the old leaves, and at the same time cut the old leaves, cut off all the diseased leaves, and some of the fine side branches are also knocked out. In this way, not only can ventilation be ventilated, the pollination rate of pumpkin flowers can be increased, but also the loss of nutrients from the plants is avoided.

Improper maintenance, such as too dense vines, improper fertilization, insufficient pollination, etc., will cause pumpkins to only bloom and not bear melons, or even grow melons, but they have died before they reach maturity. When the pumpkin vine grows, you can't just let it grow without flowering and fruiting, and when the melon seedlings grow to a certain extent, you need to take measures to slow down the growth of the melon seedlings. You can make a small slit 30 to 40 cm at the root of the pumpkin vine and let a little charcoal in it.

After the pumpkin grows to a certain stage, it will bloom and bear fruit if the temperature and environment are suitable, and if it only blooms and does not bear fruit, the most common reason is insufficient nutrients, the vines are too dense, improper fertilization, and insufficient pollination. Let the pumpkin bloom and bear fruit, pick the stars at the right time, prevent the growth, and build a melon shed. Assist pollination and reasonable fertilization.

Because of the tenacious vitality of pumpkin, compared with other vegetables, pumpkin basically does not enjoy careful care. Extensive management methods, so that when pumpkins appear to grow seedlings, many villagers do not know, so the phenomenon of not bearing melons is relatively common in rural areas. The reason for the usual fertilizer and water management, the poor management of fertilizer and water, resulting in excess of pumpkin nutrition, even if the best pumpkin variety, it will only grow vines wildly, and not bear fruit, because it can't sit on the fruit, which is the nature of the plant.

It may be that when the subject planted pumpkin, he applied more chemical fertilizers, especially nitrogen fertilizer, resulting in overnutrition of pumpkin seedlings, and the side vines of pumpkin meristem not only grew wildly. Due to the imbalance of carbon and nitrogen ratio in pumpkin, reproductive growth is inhibited, resulting in only flowering and no fruit.

<> pumpkin grows to a certain stage, if the temperature is suitable, it will bloom, and melons will bear melons after the melons, but some melons do not produce melons after the melons, the most common reason is that the nutrients are insufficient, there are not enough nutrients to make the vines and pumpkin vines grow at the junction of the vine leaves, that is, the nodes grow side buds, which can germinate and grow new branches, and there are also side buds on the branches, so the pumpkin vines grow longer and more lush; The fresh pumpkin vine leaves are edible, and it is not surprising that the pumpkin vines grown in the countryside are often picked and eaten, and the wheat and corn we grow do not need to be used as seeds for the next year! And go to the Agricultural Science Institute or the seed store to buy the seeds of other people's **! There is also a case of mismanagement!

Pumpkin grows to a certain extent to the top to prevent excessive application of nitrogen fertilizer, the planting plot is fertile, the bottom fertilizer is sufficient, and the application of nitrogen fertilizer at the same time is easy to cause the pumpkin vine to grow too vigorously, drop flowers and fruits. The solution is to control the application of nitrogen fertilizer and increase the application of forest and potassium fertilizer. Carry out deep cultivation, cut off part of the water control and fertilizer control, pumpkin is very adaptable to soil, water and fertilizer conditions, and its ability to absorb water and fertilizer is strong, so when planting or applying too much nitrogen fertilizer on fertile soil, the plant is easy to cause excessive branches and leaves due to excess nutrients, and the growth is vigorous.

When the pumpkin vine grows long, the first young melon has not appeared when the main vine grows to 13 nodes, the top growth point of the main vine should be pinched off to promote the germination of the side vines, let the side vines bloom and bear melons, and at the same time strengthen the management of the side vines, spread a layer of dry bamboo on the ground, so that the main vines and side vines can grow as far as possible from the ground, so as to prevent adventitious roots from absorbing more nutrients and water and growing again. Keep vegetative growth and reproductive growth in a reasonable environment. At the same time, some old leaves and diseased leaves are removed to improve ventilation and light transmission, and promote flowering and melon formation.

Timely water and fertilizer control.

Pumpkin is a plant that is very adaptable to soil, water and fertilizer conditions, because of its strong ability to absorb water and fertilizer, so when planting or applying too much nitrogen fertilizer on fertile soil, the plant is easy to cause excessive branches and leaves due to excess nutrients, and grows vigorously. At this time, it is necessary to intervene artificially to control the pumpkin seedlings to continue to grow stems and leaves by reducing watering and topdressing, and to promote the germination of female flowers.

When the pumpkin is making fruit, it should be powdered and pressed. That is, when you see a melon on the vine with a melon and blooming, you will find a male flower (a flower without a melon), and lift its flower round to the stamen of the melon. Then press the vine with earth near the vine, so that it can take root nearby and absorb nutrients from the soil and the vine to facilitate growth.

The most important thing in growing pumpkins is temperature. The most suitable temperature for pumpkin growth is 18 32, the temperature requirement for flowering consequences is higher than 15, the most suitable temperature for fruit development is 25 27, and above 35, the flower organ can not develop normally, and the consequences are stopped, so it should be controlled to set melons before the drought and low temperature period.

When the female flowers open, if it is rainy and rainy, most of them cannot be pollinated normally, forming flower and fruit drops. Pumpkins grow well under sufficient light conditions, but grow weakly under low light, with long internodes and thin leaves, and often cause falling melons due to poor nutrients. Before the head melon sits firmly, the pumpkin is often prone to migration when the soil moisture in the field is high or the top dressing is too much.

Pumpkin has a thriving root system, but it is mainly scattered on the surface of the soil, and the regeneration of the roots is weak, because the topsoil has unlimited water storage, and the pumpkin transpiration is strong, so it is particularly easy to wilt during the drought period. Therefore, it is one of the important technical measures to cultivate pumpkin that it is necessary to pay attention to the maintenance of the root system when planting, to make the nest large and deep when preparing the land, to deepen the deep tillage layer, and to irrigate in time when the drought situation occurs.

The ratio of pumpkin to NPK is close to 2 1 4, and the cultivation of pumpkin in newly cultivated barren land requires the application of a small amount of fertilizer to achieve the desired fruit.

In order to destroy the top advantage of the main pumpkin vine, that is, to top, remove the main vine, remove the growth point, and promote its side buds to germinate and grow branches, so as to control the growth of the main vine and promote the reproductive growth of the side vine, so as to produce melons.

Pumpkin bears the most melons after the beginning of autumn, which is mainly related to temperature, pumpkin is a heat-resistant and cold-resistant vegetable, which grows quickly in high temperature and rainy weather, that is, the pumpkin seedlings are said to grow wildly, and the pumpkin seedlings will absorb a lot of nutrients when they grow vegetatively, and the vegetative growth is greater than the reproductive growth.

In hot and rainy weather, there are fewer female flowers of pumpkins, and no female flowers will naturally not produce melons. Under normal circumstances, there are many male flowers at high temperature and many female flowers at low temperature, which can now belong to the summer vacation, and the temperature difference between day and night is small, which is not conducive to the opening of female flowers, and there are fewer natural melons.

When planting pumpkins, you should focus on the following points:

The first is to apply sufficient base fertilizer Pumpkin growth needs a lot of water and fertilizer, and it is necessary to apply enough base fertilizer when planting to ensure sufficient fertilizer and water supply during the growth period.

When the pumpkin vine grows to 2 meters, remove the growth point on the main vine, so that the main vine grows 3 or 4 branches, and flowers and fruits.

The third is to build a scaffolding When the branch grows to 2 meters, the vine is introduced to the shelf, which can improve the light transmission and ventilation conditions, so as to increase the melon sitting rate by more than 40%.

Fourth, to prevent the growth of melon vines will cause less melons, such as cutting a crack at 30 cm from the root on the vine, plugging black charcoal, it can inhibit the growth.

Fifth, auxiliary pollination first cover the female flowers that are about to open and can be pollinated with melon leaves to prevent rain from invading, and at 9 o'clock in the morning the next day, remove the male flowers on the different plants and cover the female flowers, and then remove them after 2 or 3 days.

Sixth, bury the stem in the later stage Pumpkin grows to the late stage, using the adventitious roots grown by the vine nodes, and taking the method of burying the stem, which can increase the yield by 20% to 40%. The burial time is carried out after fruiting 2 3 batches, when some sallow leaves appear in the roots. Generally, bury the nearest 4 6 knots from the roots, and bury the stem soil with fertile soil and mixed with a small amount of organic fertilizer, moist.

The depth of the soil should be mastered at about 15-25 cm.

Add a good ratio of nitrogen fertilizer and potassium fertilizer every day to increase its nutrients and stabilize the structure, so that you can go to the melon.

This should be a nutrient deficiency or no pollination, and the pumpkin should be hand-pollinated when it blooms.

It can be grafted with the flowers of other plants, which will increase the fruiting rate of the pumpkin and will make the pumpkin bear fruit.

It means that the pumpkin is not absorbing enough nutrients, and at this time you should apply some fertilizer to the pumpkin so that the pumpkin will bear fruit after a while.

The pumpkin does not bear melons may be caused by excessive nitrogen fertilizer, and it is necessary to add organic fertilizer rich in nitrogen, phosphorus and potassium. The main stem can then be cut off to slow down the growth of the pumpkin. During the pruning process, it is also necessary to prune off the rotten and elongated branches and leaves, and then spray the diluted paclobutrazol solution on the leaves to make the pumpkin and pumpkin successfully set melons.

Pumpkin does not receive melon may be caused by excessive fertilizer application, so during the cultivation of pumpkin can not be frequently applied fertilizer, especially nitrogen fertilizer, otherwise it will lead to excess nutrients, resulting in pumpkin crazy growth, at this time it is necessary to stop applying nitrogen fertilizer, top application of phosphorus and potassium rich compound fertilizer, in order to increase the number of pumpkin flowers.

After the pumpkin does not bear melon, the main stem can be cut off, leaving enough growth space for the pumpkin to grow adventitious roots, and then combined with vine pressing treatment, the root system of the pumpkin can absorb nutrients and water in the soil, so that the growth of stems and leaves is slowed down, thereby increasing the number of flowers.

After the pruning of the main branch of the pumpkin is completed, it is necessary to prune off the rotten and long branches and leaves on the vine in time, and cut off the vigorous growth part at the top, so that the nutrients become more concentrated, and the pumpkin can resume growth to increase the number and yield of flowers.

During the growth period of pumpkin, if there is continuous rainy weather, the pumpkin cannot receive normal light, causing the stem and leaves to grow long. If it is caused by rainy weather, it is necessary to spray diluted paclobutrazol on the pumpkin leaves**, so that the pumpkin can bear fruit smoothly.

1. Why does winter melon only bloom and not bear melon?

2. The reason why winter melon does not bear fruit in flowering.

3. What is the reason why winter melon does not bear melon?

4. What should I do if the winter melon does not bear fruit when it blooms, and what can I do to solve it?

1.Winter melon blooms but does not bear melon, it is likely to be caused by insufficient fertility, to fertilize it in time when it blooms, fertilizer should be applied in small quantities and many times, and excessive top dressing can not be done.

2.It is also possible that the male flowers have fewer stamens, and if the temperature is low, the male flowers will be free of pollen, so artificial pollination should be done.

3.In addition, it is affected by pests and diseases, and the drug should be sprayed as soon as possible.