How to make the effect of winter greenhouse vegetables better in flower and fruit preservation?

Maintain the vitality of the root system, the strength of the root system vitality determines the growth of the plant, so after planting, especially during the flowering period, it is necessary to ensure the nutrition and health of the root system. At this time, it is recommended to fertilize the root system with trophic biological bacteria to supplement the nutrients and maintenance of the soil, and also to promote flower bud differentiation. When choosing, pay attention to the choice of organic matter, protein, amino acids, vitamins, castor oil and other nutritional combination of bacillus stock agent fertilizer, and the agent must contain Bacillus licheniformis, in order to eliminate harmful bacteria, improve the survival rate of beneficial bacteria.

For winter greenhouses, the first thing to consider is temperature, because the temperature is very critical to the growth of plants, and we should pay attention to temperature control measures. If it is continuous rainy days, it is necessary to pay attention to taking supplementary light measures, such as setting up supplementary light or foliar spraying, which can improve the photosynthesis of plants Magnesium fertilizer or boron-calcium fertilizer contains organic titanium, thereby improving the photosynthetic capacity of plants, supplementing boron calcium for plants, and protecting flowers and fruits.

In order to reduce heat loss in winter and increase the temperature and soil temperature, the canopy should be covered as much as possible. Wind barriers can be set around the greenhouse, and multi-layer covering measures such as medium greenhouse, small greenhouse, and plastic film can be set up in the greenhouse. Heating measures can also be used to raise the temperature, such as electric heating, coal furnace heating, etc.

At this time, the vegetable farmer does not turn off the temperature immediately, so that the temperature rises suddenly, and it is easy to make the vegetable tissue necrosis. Instead, the temperature in the shed should rise slowly. At the same time, it is necessary to cut frozen fruits and stems and leaves in time to avoid tissue mildew damage.

According to the weather conditions, antifreeze can be sprayed before plant dormancy in late autumn, 3-7 days before frost or cold wave, before and after plant germination and flowering in early spring, after sudden low temperature frost damage, after rain and snow or cold weather improves, and before and after transplanting, so as to improve the frost resistance of crops.

The flower bud differentiation of plants is inseparable from the action of boron and calcium, so it is recommended to use organic titanium and calcium-boron foliar fertilizers before flowering, which can not only meet the needs of plants to supplement boron and calcium, but also improve the photosynthesis and frost resistance of plants through the action of titanium. Attention should be paid to the rational use of nitrogen fertilizers and not to allow plants to thrive.

1. Reasonable temperature control: The first thing to consider for the winter greenhouse is the temperature, because the temperature is very critical to the growth of the plant, so the plant enters the flowering and fruit setting period, the temperature is controlled at 20-30 degrees during the day, and the temperature is controlled at 12-16 degrees at night. 2. Maintain a certain amount of sunlight exposure.

If it is a rainy day, pay attention to taking supplemental light measures, such as setting up supplemental lights, or foliar spraying can improve the photosynthesis of plants with magnesium fertilizer or boron-calcium fertilizer containing organic titanium, the purpose is to improve the photosynthesis ability of plants, and supplement boron-calcium elements that are conducive to plant flower and fruit preservation. 3. Maintain root viability (this is very important). The vigor intensity of the root system determines the growth of the plant, so after planting, especially during the flowering period, we must ensure the nutrition and health of the root system.

When choosing, pay attention to the choice of organic matter, protein, amino acids, vitamins, castor oil and other nutritional combination of bacillus stock solution bacterial fertilizer, and the bacteria must contain Bacillus licheniformis, which can eliminate harmful bacteria and improve the survival rate of beneficial bacteria.

Pay attention to the temperature, pay attention to the sun, pay attention to ventilation, pay attention to the use of fertilizers, and choose the right varieties for planting, so that you can have good results.

Maintain root vitality, reasonable temperature control, maintain light time, strengthen nutrient supply, and use pesticides.

1. Temperature management.

Therefore, in order to ensure that the flower buds are well differentiated and the fruit setting rate is improved, vegetable farmers should pay special attention to regulating the temperature in the shed, which is controlled at 20-30 during the day and 13-15 at night.

In case of cold snap, you can ignite the greenhouse warming block and other temporary heating, and usually thicken the shed wall, set up a shed film, cover the floating film and other measures to improve the heat preservation of the shed.

2. Light management.

In addition, the reflective curtain should not be hung on the back wall, and the reflective curtain should not be hung on the entire back wall to prevent reducing the heat storage of the back wall. The fill light needs to be flexibly adjusted according to the growth height of the vegetable, and the height is kept at about the meter of the growing point, and the range of the fill light is smaller, and the distance above the meter above the vegetable growth point can be smaller.

3. Ensure nutrients**.

In addition to ordinary water-soluble fertilizer, calcium, magnesium and boron, zinc, iron and other trace elements should be added during the flowering and fruit-setting period to ensure the nutritional balance of the plant, and adhere to the "boron supplement before flowering, calcium supplementation after flowering", that is, boron fertilizer is sprayed 7-10 days before flowering, and calcium fertilizer is sprayed 5-7 days after flowering. During the flowering period, alginic acid foliar fertilizer should be sprayed more, which is conducive to flower bud differentiation.

4. Remove deformed flowers and fruits.

Deformed flowers often develop into deformed fruits, found that deformed flowers are directly removed, after the young fruit just grows out, many deformities can be found, must be found early and removed. Otherwise, it will cause the normal fruit and the deformed fruit to compete with each other for nutrients, and the result will be that the deformed fruit does not grow well, and the normal fruit does not grow much. Therefore, vegetable farmers should pay attention to thinning flowers and fruits, remove all kinds of deformed flowers and deformed fruits in time, and reduce nutrient consumption.

5. Reasonable point (dip) flowers.

Grasp the concentration of the anther, different seasons, different temperatures, different varieties, the concentration of the anthers is not the same, even if it is the same concentration, the time of the point (dip) is not the same, and the effect of the point (dip) flower is not the same. When the normal point (dip) flower, first pay attention to the shed temperature, no matter which point (dip) anther is chosen, the concentration should decrease with the increase of temperature, so as to avoid the formation of deformed fruits due to the high concentration of the agent.

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