What is the pollination effect of greenhouse melons 40

Greenhouse melons can be pollinated by hand or bees.

1. Artificial pollination is to use the male flowers that open on the same day from 8:30 to 10:30 a.m. when the female flowers of the reserved node position of the plant open, remove the petals, gently smear the pollen of the stamens on the stigma of the pistil, and leave 2 leaves for topping after sitting on the melon; You can also use a brush to dip pollen on the male flowers and gently apply them to the stigma of the female flowers.

2. Bee pollination should be stocked with 1 box of bees in each shed 2 days before flowering, and the use of bee pollination can significantly improve the fruit setting rate, reduce the occurrence of deformed fruits, and improve fruit quality and flavor.

Extended Materials. The management content before and after pollination of greenhouse melons 1, temperature management should be adjusted in time according to the change of weather conditions, the temperature, humidity and light conditions in the shed, when the shed temperature exceeds 32, the shed film is covered with shade net to properly shade and cool down to ensure that the ground temperature is appropriate. During the pollination period, the temperature during the day is 25-30, and the night is not less than 12, which is conducive to strong seedlings, early emergence of vines, early sitting melons, and fast expansion of melons.

2. Humidity management control of field humidity during flowering and pollination period, generally no longer watering, in case of special drought, drip irrigation can be used to replenish water, boron fertilizer can be sprayed on the foliar surface one week before pollination, which is conducive to the growth and pollination of melon fetus. It is recommended that the humidity in the greenhouse is controlled at 60 during the day and 70 -80 at night. 3. Water and fertilizer managementIncrease irrigation in the fruit expansion stage, control irrigation when the fruit stops expanding, and stop irrigation 10-15 days before harvest.

Irrigation is done on the principle of small quantities and multiple times. Usually in the fruit expansion period, with irrigation water, fast-available phosphorus and potassium fertilizer, or phosphorus and potassium-containing nitrogen, phosphorus and potassium compound fertilizer, 15 kg to 20 kg per mu, chlorine-containing fertilizer should be used with caution. 4. 4-5 days after fruit set, after watering the gourd fertilizer water, according to the growth of the plant, how much the melon sits, 1-2 times of thinning the melon, generally the first stubble to leave the melon single vine pruning 1-2, double vine melon to leave 3-4, first.

Leave 2-4 melons in the second and third stubbles, and remove deformed melons, cracked melons and weak melons. 5. The section of the single layer of the melon, in the 9th-12th section of the main vine; For those with double layers of melons, one layer of melons will be left in verses 9-12 and 17-21 of the main vine. The vegetative growth of the plant is good, which can reduce the fruit setting node, and vice versa, it can be appropriately increased.

Generally, small-fruited varieties can leave 2 melons per plant per layer, while large-fruited varieties can only leave 1 melon per layer per plant.

Bumblebee pollination, all kinds of good. Bumblebee pollination is good.

If I say chlorpyramide will be scolded, artificial, or bumblebee.

After pollination, the melons in the greenhouse should be watered according to the soil conditions, and the watering should be stopped about a week before harvesting.

Water management: slow seedling stage. When slowing seedlings, it is necessary to water enough seedlings to slow seedlings.

Melon vine growth period. If the soil is not too dry, do not water it after slowing down the seedlings and before setting the melons, which is conducive to squatting seedlings and the growth and development of the root system.

Fruiting period. After the melon sits on the melon, it should be watered with melon water. Fruit expansion period, generally watered 2 3 times, each watering to water enough, watering, it is best to use the film under the dark irrigation, the production does not advocate flood irrigation, flood irrigation will not only reduce the ground temperature, but also accelerate the occurrence of soil-borne diseases.

Fruit ripening period. After the end of the fruit expansion period (i.e., after the fruit is fixed), watering should be controlled to promote fruit ripening. 1 week before the melon harvest, stop watering to promote the conversion of sugar and the ripening of the melon, and improve the quality of the melon.

Humidity control: The relative humidity of the air suitable for the growth of melons is 50 60%, and the soil moisture should not be lower than 48% of the maximum water holding capacity in the field.

The relative humidity of the air in the greenhouse is 60% during the day and 70 to 80% at night, which can also make the melon grow normally.

The seedling stage and vegetative growth stage are more adaptable to higher and lower air humidity, but after flowering and fruit setting, especially entering the gourd expansion stage, they are sensitive to air humidity.

In the middle and late stages of plant growth, excessive air humidity will delay the flowering period, cause stem and leaf growth, and even cause diseases.

When there is a contradiction between the temperature and humidity in the shed, the main thing is to reduce the humidity.

Measures to reduce humidity in the shed:

The first is ventilation, the temperature in the shed is low and unstable in the early growth stage, and it is better to ventilate the middle of the greenhouse; In the later period, the temperature is higher, and the ventilation at both ends and sides of the greenhouse is the mainstay, and the central vent can be closed on rainy days.

The second is to control watering, irrigation is more, water evaporation is large, it is easy to cause the humidity in the shed to be too high, so it is necessary to minimize the number of irrigation times and control the amount of irrigation.

In different stages of development, the need for water is also different: the seedling stage should be less, the vine extension stage and flowering period should be sufficient, the fruit expansion period should be sufficient, the maturity period needs to be the least, and the watering should be stopped 7 to 10 days before harvest.

Usually thick-skinned melons can be poured with 1 extension water and 1 2 times of puffing melon water.

Hello, the latest greenhouse melon pollination technology is the use of bees for manual pollination. Artificial pollination can improve fruit ripening and shipments, but also protect from weather and environmental influences, improving fruit quality and yield. Alternatively, you can use a drone to spray pollinating powder, or you can use a robotic arm to pollinate.

These innovative pollination techniques are more efficient and quicker than traditional manual pollination. Greenhouse melon is a very important crop, however, its growth and development are affected by many factors, such as temperature, humidity, light, nutrients and moisture.

Therefore, the use of advanced pollination technology is essential for greenhouse melon cultivation. The use of new pollination technology can improve the wind resistance of greenhouse melons and the production efficiency of farmers, thereby bringing more wealth to farmers. In addition, pollination technology can also reduce greenhouse and environmental pollution, protect the ecological environment of crops, and improve the green and wide industrial benefits of greenhouses.

Therefore, we need to continue to explore and develop new technologies to improve the quality and yield of melons to meet people's demand for food. <>

The pollination technology for melons in greenhouses can be manual or automatic with bees. Here are some of the latest pollination technologies: 1. Electric pollination robots:

This kind of robot can automatically complete the pollination of melons, which can greatly improve the pollination efficiency and reduce the intensity of manual labor. 2. Artificial intelligence pollination: This technology uses artificial intelligence and machine vision technology to accurately control the pollination amount and pollination time, thereby improving pollination efficiency.

3. Photosynthesis and synergistic technology: By increasing the light time and light intensity, the growth and development of melons can be promoted and the pollination efficiency can be improved. 4. Pollination of nanomaterials:

The use of nanomaterials to produce pollinants can enhance the pollination effect and improve the yield and quality of melons. In general, the technology of acre flour for greenhouse melons is constantly innovating and developing to meet people's needs for high-yield, high-quality melon fiber transportation.

Pollination is one of the most important aspects of melon production, and ensuring sufficient pollination can improve the yield and quality of melons. However, if melons are pollinated excessively, the following effects may occur:

1.Formation of deformed fruits: If melons are overpollinated, they can easily form oversized fruits. Such fruits generally have a smooth surface and are too large, which will distort the shape of the fruit, which can easily cause cracking of the peel, and also affect the taste and quality of the melon.

2.Deterioration of quality: Excessive pollination of melons will also make melons grow slowly, and nutrients cannot accumulate in time, affecting the quality and taste of melons. In addition, over-pollination slows down the growth rate of melons, which is not conducive to full ripening of the fruit.

3.Reduced yields: Controlling pollination not only slows down melon growth, but can also adversely affect melon yields.

Over-pollination wastes pollen, energy and other resources, resulting in an increase in production costs and a decrease in melon yield.

Therefore, it is necessary to pay attention to the fiber leakage when pollinating melons, not only to ensure that the pollination amount is sufficient, but also to control the pollination amount to ensure the quality and yield of melons.

Fertilization after fruit set: the absorption of nitrogen and potassium was the largest in the fruiting period of melon, and the peak absorption of nitrogen and potassium was about 16 to 17 days after the setting of melon, and the peak of phosphorus absorption was later than that of nitrogen and potassium.

Generally, basal fertilizer should account for 1 2 2 3 of the total amount of fertilizer, and concentrated furrow application or hole application. Responds well to organic fertilizers. Rapidly available components of nitrogen, phosphorus, and potassium in soil.

The seedling stage should be ppm; The fruiting period ppm is appropriate. In addition, it is sensitive to elements such as calcium, magnesium and boron and should be administered as appropriate.

Management of melons after fruit setting in greenhouses:

1. Temperature management.

In the fruit expansion stage, the temperature difference between day and night is widened, and the temperature in the shed is controlled at 28 30 during the day and 18 20 at night.

2. Fertilizer and water management of gourd.

For the plots with sufficient basal fertilizer, after thinning the fruit, the puffed melon fertilizer is applied according to the growth of the vines, and the fertilizer varieties can be compound fertilizer, flush fertilizer, water-soluble high potassium fertilizer, etc.

Fertilization time: After fruit set, the young fruit grows to the size of an egg and the fruit is thinned in time (generally one week), and then the first fertilization is carried out, and the second fertilizer should be applied if the growth is relatively weak (about 10 days apart from the first time). The nitrogen content of the fertilizer is higher in the first time, and the potassium content is higher in the second time;

Total amount of fertilization: generally 10 15 kg of ternary compound fertilizer or special formula fertilizer for watermelon per mu, water-soluble high potassium fertilizer or flush fertilizer according to the amount specified in the package;

Fertilization method: furrow irrigation needs to be unloaded from long to short section by section, and generally fertilizer water is beaten until the furrow is full and penetrates into the furrow. Drip irrigation is the application of dissolved fertilizer water from a dropper.

The drip irrigation method is better than the furrow irrigation method. After ditch irrigation, pay attention to strengthening ventilation to avoid diseases caused by high air humidity in the shed. Stop applying fertilizer water 15 days before the melon is ripe.

3. The second batch of melons set fruits.

The second batch of melon fruit setting can generally be carried out 20 to 25 days after the first batch of melon fruit set. When setting fruits, it is necessary to look at the growth of melon vines to determine the number of fruits, each plant can leave 2 for vigorous growth, and 1 for weak growth, which can also promote or advance the fruit setting of the third batch of melons and prevent premature plant aging.

4. Standards and methods for melon harvesting: Appropriate time for melon harvesting.

When the sugar content reaches the highest point but the flesh has not yet softened, the different varieties should be determined according to whether they have fully exhibited the characteristic characteristics of the variety and according to the actual ripeness.

In order to facilitate harvesting, the method of marking the pollination date during pollination can be adopted; You can also see the change of leaf color of the leaves of the fruit setting section, the leaves turn yellow, scorched, etc. Harvesting should be done in the morning when the temperature of the melon is low (below 20) and there is no dew on the surface of the melon, and the melon handle should be cut into a "T" shape when harvesting.

5. Pest and disease hazards.

Once the pest and disease hazards are found, they should be treated with drugs in time, and at the same time, pay attention to the safe interval of pesticide application.

1. Improve the ecological environment. First, it is necessary to remove the water around the planting site and promote the roots; The second is to uncover the plastic film in the morning, and cover it in the evening to make up the light and keep it warm; Third, it is necessary to uncover the two ends of the greenhouse film or the base film of the greenhouse to supplement the scattering light source on rainy days.

2. Regulate the growth of melon vines. In the melon field where the melon has grown, paclobutrazol is sprayed, 10 ml of promecin per mu, and 40-50 kg of water is sprayed, which can significantly inhibit the growth of melon vines, promote the hypertrophy and robustness of the ovary, and facilitate the expansion of fruits.

3. Induce female flowers to sit on melons. The female flowers can be treated with the sitting, such as the sitting, the fruit setting rate of the shouting sparrow can be increased to more than 90%, that is, in the afternoon of the first day of flowering of the female flowers or on the day of opening, spray the melon tire with 200-400 times of the wettable powder of the sitting, or smear the fruit stalk with 10-20 times the solution of the sitting.

4. Artificially assisted pollination. Because the melon is the male and female flowers grow on the same plant, and the female flowers are the flowers of the two sexes, two methods can be used for artificial pollination, one is to pick the male flowers and give their pollen to the stigma of the female flowers, and each male flower can be given 2-3 female flowers; The second is to use a dry brush to gently stir on the stigma of the female flower, and the pollination time is carried out at 7-9 o'clock in the morning every day.