How to prevent rainstorm hazards in summer vegetables?

Cultivating and loosening soil after heavy rain to increase soil permeability: in order to prevent soil compaction, those who are seriously waterlogged should use 200-400 grams of imported loose soil essence per mu to sprinkle vegetable planting areas; Strengthening the cultivation of loose soil has a good remedial effect on promoting the healthy growth of vegetables and preventing the occurrence of diseases.

Sprinkle plant ash to absorb moisture: If conditions permit, plant ash can be sprinkled, because plant ash can absorb water, reduce soil moisture, increase nutrients, improve the environment, and prevent diseases.

Timely replanting and timely planting: For fields that are seriously affected by the disaster and have been soaked for a long time, resulting in severe damage plots or no harvest, the production of stubble crops should be arranged as soon as possible, and the crops should be replanted or replanted as soon as possible. For vegetables whose roots have died, the fields should be cleaned up in time, the land should be carefully prepared after disinfection, and the fast-growing leafy vegetables should be replanted, so as to strive to go to market as soon as possible and improve economic benefits.

After the rainstorm, because the rainwater is acidic, it can cause diseases, so the high temperature transpiration after the rain is vigorous, and the soil is compacted, which also affects the absorption of oxygen by the vegetable roots, so the vegetable growth is in a weak position, so it is easy to cause the occurrence of pests and diseases, especially the occurrence of diseases such as cracked fruit, rotten fruit, root rot, downy mildew, and blight. In order to promote the recovery of the growth of the affected vegetables as soon as possible and reduce the harm of pests and diseases, after removing the stagnant water, the foliar spray of potassium dihydrogen phosphate + 1% urea mixture for 1 time, when the soil moisture is suitable, 6-8 kg of compound fertilizer per mu is applied. At the same time, timely spraying, mainly with fungicides such as Pulik, as well as avermectin (spotted loon fly) and other insecticides, and at the same time, the seriously damaged plots are sprayed with protective foliar fertilizers such as Bihu.

1. The improvement of crop disaster resistance mainly depends on the improvement of the quality of crop varieties. Strengthening the development of crop varieties can effectively improve the quality of crop growth. Strengthening scientific and technological innovation and improving the disaster resistance of crop varieties is an important aspect of improving the disaster resistance of crops in the later growth stage.

Solving the disaster resistance of crop varieties from the technical level can effectively improve the resistance to pests and diseases and disaster prevention in agricultural planting.

2. Regardless of flood or hail disaster, it is recommended to take back the vegetables with commodity attributes in time to reduce losses. In the process of hastily collecting, if there are injured vegetables it is advised not to, because it rains, and the injured vegetables will rot quickly. If heavy rain or hail is relatively light, it is recommended to use medication to prevent vegetables from getting sick, such as:

carbendazim, or dysengen, allows the plant wound to heal quickly. Also, keep the plant upright so it doesn't fall to the ground. The vegetables that come back from the market should be sold as soon as possible, and if conditions permit, they should be refrigerated and stored.

3. First of all, it is important to drain the water. Different vegetables have different tolerances to rain, and generally vegetables will not drown within 5-6 hours. Some vegetables are waterlogging tolerant for a long time, such as cucumbers for 24 hours, but you can't wait for a day to drain water because cucumbers can resist waterlogging for 24 hours.

After draining, it is necessary to "flood the garden" and replenish some oxygen with fresh well water to quickly help the root system breathe.

4. After the occurrence of rain and hail, vegetables will have many wounds, and its resistance will be reduced, and it is easy to be attacked by bacteria, such as soft rot and black rot of leafy vegetables; Melon and fruit early blight, leaf mold, gray mold, etc. Therefore, it is necessary to restore the production of vegetable plots in a timely manner, do a good job in disinfection of soil and sheds, and prevent and control the spread of pests and diseases. First of all, it is necessary to remove the remaining branches and dead leaves, the wound is easy to infect when it comes into contact with the ground, and the plant must stand upright and not fall to the ground; secondly, timely use of medicine to prevent vegetables from getting sick; the third is to repair damaged facilities, such as broken membrane sheds; Finally, water and top fertilize in time to allow the plants to recover their growth quickly.

First, salvage the fruits and vegetables that are about to ripen, then put them in a cool and ventilated environment, and then drain the water from the rainstorm to remedy.

You should immediately protect yourself with some protective cover to get a good remedy. These vegetables and fruits should also be moved into the house.

It can be harvested in time, and some drainage canals can be mined to better drain some water, and this kind of remediation is very reasonable.

The folk proverb says that "dry hoeing field, waterlogging garden", in which "waterlogging garden" refers to the removal of vegetable furrow precipitation immediately after the rain, and irrigation with river water and small water, so as to reduce ground temperature, improve soil permeability and oxygen content, so that vegetables can maintain normal inhalation, so that vegetables can grow and develop normally.

Hoeing and draining soil water content as soon as possible, improve soil air permeability, and avoid root soaking and vegetable blight diseases due to large soil water content. Integrate the soil turning and topdressing microbial agents to achieve the reasonable killing and transmission of harmful pathogenic bacteria on the surface of the soil layer.

Immediately after the rainstorm, the plants that blow crooked or fall seedlings will be straightened to reduce the corruption and disease caused by the pressure between each other, and the spraying agent can be combined to increase the water flow while cleaning and disinfecting the agent.

Water storage and high humidity will lead to the weakening of the rhizome theme activities of melons and vegetables, and the root absorption effect is weak, so it should be sprayed or irrigated immediately to promote plant growth and development, improve rhizome vitality, and promote the downward rooting of capillary roots. The use of fruit can reduce symptoms such as heart rot, umbilical rot, and browning and atrophy of bud eyes.

For the recently transplanted summer and autumn stubble nightshade vegetables, it is necessary to carry out pesticide spraying after the rain and close the road surface to avoid the spread of pathogenic bacteria and fashion. Fusion spraying can fill medium and trace element fertilizer, improve the flowering promotion of plants, improve heat resistance, and improve fruit setting rate.

After precipitation, there will be more wounds on the branches of Chaotian pepper, which is easy to cause diseases, so it is necessary to take medicine as soon as possible to prevent high incidence of horn spot, brown spot, epidemic and other diseases.

While preventing and controlling the diseases of true pathogens in the vegetables in the Bashang area, it is necessary to pay attention to the appropriate improvement of heat insulation and thermal insulation measures. The temperature difference between day and night in the vegetable greenhouse in the Bashang area is large, and the air outlet should be turned off at night to insulate and keep warm, so that the eggplant vegetables can grow and develop rapidly, and there are fewer deformed fruits caused by the large temperature difference. Spray anti-bacterial infections immediately after rain to reduce the threat of downy mildew.

1. The invasion of heavy rain can also cause vegetable plants to fall to the side, or the stems and leaves are directly broken. At the same time, after heavy rain, the air retained in the soil will be significantly reduced, and the root system of vegetables will be forced to switch to anaerobic respiration to sustain life, which will lead to cell death due to poisoning over time.

2. Remove stagnant water. For some vegetable fields that have been flooded, first of all, it is necessary to open ditches and clear ditches in time, remove all the remaining water in the field as soon as possible, and appropriately raise the furrow surface to reduce the water level of the vegetable field, so as to correctly promote the normal growth and development of the root system of the plant.

3. Cover the shade net. In the case of a sudden sunny day after rain, it is necessary to cover it with a shade net or spread an appropriate amount of grass on the furrow surface in time, which can usually realize the active water absorption function of the root system to be restored as soon as possible, and successfully avoid the situation that the plant loses water and wilts.

The technical measures that can be taken include ditch drainage, repair facilities, strengthen management, prevent soil compaction, apply a small amount of fertilizer, spray foliar fertilizer, and do a good job in pest control.

First of all, we must drain the water in time, loosen the soil in time, and dig some drainage ditches. Then it is necessary to repair the facilities and strengthen management.

When the rain is heavy, some of the stagnant water can't flow out at all, we have to dig a drainage ditch and put the water out first, otherwise the roots of the beans, spicy peppers, eggplants, loofahs and other vegetables will be soaked in the stagnant water for a long time, and the phenomenon of soaking roots and rotten shouting scattered roots may occur. After a long time, the long good dish will die.

Entering the dog days, the temperature rises, the rainfall increases, a small field in three days, and a large field in five days is not an exaggeration to say that there are floods in many areas in the south.

Although we are a little short of water here, in this rainy season, if there is heavy rain, what do we need to pay attention to the vegetables grown in the vegetable garden at home?

First, after a rainfall, we have to go around the vegetable garden to see if there is any standing water in the garden.

When the rain is heavy, some of the stagnant water can't flow out at all, so we have to dig a drainage ditch and put the water out first, otherwise the roots of the beans, peppers, eggplants, loofahs and other vegetables will be soaked in the stagnant water for a long time, and the phenomenon of soaking roots and rotten roots may occur.

After a long time, the long good dish will die, so,Draining the stagnant water after the rain is the most important thing.

Second,If we find that some vegetables in the garden have fallen down, we want toHold it upIt prevents the leaves from sticking to the ground, not ventilating, not breathable, and causing rot.

Third,Abundant rain is conducive to the growth of all things in the world, like weeds in the vegetable garden, which grow after the rain, we can still get it after the rainDo a good job of removing weeds in the field to avoid the vigorous grass absorbing the nutrients of vegetables, which affects the growth of vegetables.

Under the washing of rain, the soil is prone to compaction, which will affect the respiration of vegetables, combined with the removal of weeds, can prevent soil compaction, which is conducive to the growth of vegetables.

Fourth,Rainwater erosion, nutrient loss in the soil, and lack of fertility affect the growth and development of sub-crops in the vegetable garden. We can choose to apply some fertilizer in the morning and eveningUse some farm fertilizer for the small vegetable garden, which is both environmentally friendly and nutritious.

It can also improve soil structure and have a good effect on crop growth.

FifthThe environment of high temperature and humidity is prone to diseases and pests. After the rain, we gotDo a good job of pest control in advance。Remove diseased leaves and branches in time to reduce the source of disease.

TotalIn the rainy season, we need to manage the problems that are prone to occur, so that the small vegetable garden can return to us with a lot of good and delicious vegetables!

1.Timely removal of stagnant water in vegetable fields;

2.The occurrence of diseases is prevented and controlled by spraying with low-toxicity spectral and high-efficiency fungicides;

3.Proper topdressing and watering to supplement nutrients to vegetables;

4.Timely loosening of soil and weeding, increase soil permeability, and promote root growth.

1. Rush drainage.

Timely drainage, reduce the groundwater level, dredge the three ditches in time, remove water, do the rain quickly drain, rain ditch dry, prevent vegetables from suffocating and death caused by water accumulation and stains, and avoid early vegetable strikes.

Second, rush management.

1. Straighten the vegetable plant in time. It is necessary to straighten the lodging vegetables, reduce the phenomenon of squeezing each other, and properly cultivate the soil and roots.

2. Spray foliar fertilizer in time. After the rainstorm, the ability of vegetable roots to absorb water and fertilizer is poor, at this time should be sprayed in time to spray foliar fertilizer, generally available potassium dihydrogen phosphate + urea solution, can make vegetables quickly regain vitality.

3. Sprinkle grass and wood ash in time. Spreading plant ash can absorb water, reduce soil moisture, increase nutrients, improve the environment, and prevent diseases.

4. Cultivate and loosen the soil in time. After rain, the soil is compacted, and when the soil is slightly dry, the soil is cultivated and loosened to improve the soil structure and increase the vitality of the root system.

5. Promote rain-sheltered cultivation. The use of plastic film, sunshade net and other materials to cover the top of the greenhouse can not only avoid the direct rainwater, but also effectively improve the temperature, light, humidity, gas and other microclimates in the shed, and reduce the number of pesticide prevention and control and the amount of medicine.

3. Rush prevention and control.

1. Ecological regulation. First, pay attention to dredging the three ditches (surrounding ditch, compartment ditch, waist ditch), timely drainage, and prevent water accumulation in the field. The second is to pay attention to pruning and forking to ensure ventilation and humidity reduction in the field. The third is to pay attention to removing weeds and diseased plants at the edge of the field and in the field to reduce the source of diseases and insects.

Fourth, increase the application of phosphorus and potassium fertilizers to increase plant disease resistance.

2. Biological control. The first is to use biological missiles to control lepidopteran pests such as soybean borer, Spodoptera litura, Spodoptera exigua, diamondback moth, etc., with 4 or 6 biological missiles per mu. The second is the application of sexual attractants to control Spodoptera litura, Spodoptera exigua.

3. Physical prevention and control. One is to manually remove Spodoptera litura, Spodoptera exigua, Spodoptera exigua egg masses or capture them manually. The second is to use insecticidal lamps to trap and kill. The third is to use the silver insect shelter belt to repel pests such as whiteflies.

4. Chemical regulation. For the prevention and control of powdery mildew, anthracnose, coal mildew and rust, you can choose to spray alternately with 30% etherstrobin 1500 times or 10% oxaetherazole (Shigao) 1500 times or 70% thiophanate-methyl (methyl tobuzin) 700 times; Prevention and control of downy mildew 00 times liquid spray control.

Fourth, grab the harvest.

Timely harvest of ripe or soon-to-be ripe vegetables, timely market, reduce losses, increase income, and stabilize prices.

Fifth, rush to sow seeds.

1. Rush to sow lettuce in a timely manner, sow in stages, and go on the market in a balanced manner, and the market can be advanced 30 to 40 days after sowing.

2. Timely stubble change, seize the season to carry out autumn vegetable seedling or live broadcasting, and timely stubble change.

1.Drain stagnant water. After the rain, the stagnant water in the field should be removed in time to prevent the suffocation and death of the plant due to the poor breathing of the vegetable root system due to excessive stagnant water.

2.Cultivating loose soil. After the rain, there is often the phenomenon of soil compaction in vegetable fields, and the soil should be cultivated and loosened immediately after the rain stops and the soil is slightly dry. Loosening soil can improve the permeability of the soil, improve the physical and chemical properties of the soil, and improve the vitality of the root system.

3.Straighten the plant. Wind and rain often cause the vegetable support to tilt or collapse, so after the rain stops, you should go to the field for a detailed inspection, the lodging vegetable support is righted, to prevent the plants from squeezing each other, and properly cultivate the soil, which is conducive to the rapid recovery of vegetable plants.

4.Spray foliar fertilizer. After heavy rains, the root system of vegetables has a poor ability to absorb water and fertilizer.

At this time, the method of foliar fertilization should be adopted for top dressing, which can be used to dissolve potassium dihydrogen phosphate + 1% urea solution, such as spraying trace elements in Bica, which can make vegetable plants quickly recover their vitality.

5.Disease prevention and insect treatment. After rain, the high humidity and temperature in the vegetable field will greatly weaken the resistance of vegetable plants.

At this time, it is also the high incidence period of common diseases such as eggplant Verticillium wilt, eggplant cotton blight, cucumber downy mildew, pepper soft rot, tomato virus disease, and early blight. At the same time, pests such as cotton bollworm, tobacco worm, and red spider will also take the opportunity to occur on a large area of nightshade vegetables. For this reason, fungicides and insecticides should be used in a timely manner for spray control.

For plants with serious disease, the diseased plants should be uprooted and taken out of the field for concentrated deep burial or burning to prevent spread and spread in the field.