Some vegetables are planted in the open air in the yard. What problems should we pay attention to in rainy season?

After soaking, the soil permeability is poor, and the roots of plants lack oxygen, which is easy to cause root rot. Drainage should be done in time after rain. Sudden flow after rain will cause high temperature and humidity, so it is necessary to irrigate well water in time, reduce the ground temperature and reduce the hot and humid air flow in order to reduce the occurrence of diseases. It is the rainy season and the season with high incidence of pests and diseases. After the heavy wind and rain, it is necessary to remove the rotten leaves from the vegetable garden in time to prevent the rot of the rotten leaves from causing diseases. Wash the mud spots splashed on the stems and leaves of vegetables by rainstorm in time, and correct the dumped crops in time. After the soil is slightly dry after the rain, loosen the soil in time to improve the soil permeability and promote the recovery and growth of the root system.

Rain is more conducive to the spread of germs, plants are damaged, and high temperature and high humidity environment can cause diseases and insect pests, increasing the probability of occurrence. For example, soft rot, root rot, plague and gray mold are all high-incidence periods after rain. Prevention first, spraying protective fungicides such as carbendazim and acaricide in time after rain to treat fungi and bacteria. However, for the vegetable garden with the onset trend and symptoms, the corresponding fungicides with systemic treatment should be selected according to the condition. After rain, the root activity of vegetables is weak and the water absorption capacity is weak, so foliar fertilizer should be sprayed in time. The mixture of 0.2% potassium dihydrogen phosphate and 0.5% urea can be sprayed to restore plant growth as soon as possible.

Clear ditches at the right time, dredge three ditches, clear up the accumulated water in the fields, sow vegetables, loosen the soil (hoe the soil once), and apply foliar fertilizer (Huilongbo, Meimei and Qinglanchun). After a few days, lightly spread nitrogen fertilizer and topdressing each mu. After cleaning, diseases can be easily induced and prevented. The white powder can be selected from Tribet, Kaiser, Lunasen and Rust. White powder: Antaisheng, Baitai, Karen, Akebo (ceramide morpholine); Soybean melting can be selected: number, false alarm, mebendazole; Bacterial soft rot can be selected from zinc bromide (mural painting, mural painting and mural art), Ranunculus vernicillin, triclosan and copper.

At present, the weather is cooling rapidly, and eggplant vegetables like temperature. When the temperature is lower than 15 degrees, the flowers will fall to the ground and become stiff, and the flowers will be fake. Get ready for the cold! The outside temperature should be lower than 15 degrees, and the wind should be collected in time at night to ensure that the temperature in the warehouse is above 20 degrees! This year, due to the weather, the left side and ripening of tomatoes have been delayed. At present, the flowering period is going on, so you can't leave too many fruit trees, just leave 3-4 more. It is necessary to pat the old branches with short hair in time to improve transparency and increase illumination. Otherwise, it will delay maturity, and it will not mature when it is cold. It rains for a long time and the humidity is high, so it should be ventilated in time according to the weather, not stuffy. Otherwise, there will be dark spots and skin cracking! Eggplant and pepper should be sealed. Pay attention to adding fertilizer. Eggplants and fruits and vegetables like phosphorus and potassium fertilizer. Don't forcibly apply nitrogen fertilizer, apply compound fertilizer again, and catch up with the yield per mu 15 kg of high-potassium compound fertilizer.