How to manage vegetables in high temperature and rainy weather in summer to achieve high yield?

How to manage vegetables in high temperature and rainy weather in summer to achieve high yield? It's summer. Due to the high temperature, strong sunshine and abundant rain in summer, it is a season of high incidence of various diseases and insect pests. From vegetables planted in spring to vegetables planted in summer, whether it is watering, fertilization or various management, if we don't master the methods, we will not only grow badly, but also have various problems. Therefore, the management of vegetables in summer must be done well, otherwise yellow leaves, dwarf trees and dead trees will also reduce production; Done, there are too many results to pick out.

First, pay attention to the watering time. In summer, the ambient temperature and soil temperature are very high, especially in sunny afternoon. When the climate reaches 30 degrees, people will feel very hot. When watering vegetables at this time, you must remember that it is not necessary to water them in the afternoon and afternoon. Because the environmental temperature of the soil is very high in the afternoon, the roots can't breathe well at this time. If they are watered, it is easy to hurt their roots and cause various diseases.

So watering vegetables in summer should be done in the morning and morning. Another, no matter what season, when watering, you must have a small amount of meals and don't flood. Otherwise, the roots will rot.

Second, we must grasp the proportion of fertilization. In the high temperature season in summer, the root system is very sensitive to the surrounding environment. Vegetables need to be fertilized under the condition of growth and development, but unreasonable fertilization will hurt the roots. Pay attention to these points when fertilizing vegetables in summer. Do not use unfermented organic fertilizer; There is no need to fertilize in the afternoon with high temperature; No fertilization in rainy days; There is no need to fertilize near the roots; Foliar spraying should be chosen in the morning and evening; The newly planted vegetable seedlings do not need fertilization before the root system slows down; Long beans do not need fertilization at the initial flowering stage.

Third, pay attention to raising roots and protecting roots. Summer is the high season for all kinds of pests and diseases. Generally, from late spring to autumn, dead trees, rotten roots and poor growth often occur, which seriously harms the normal growth and development of crops, leads to the shortage of short seedlings and a significant decline in yield. Because the rhizome declines in summer, it is very vulnerable to pathogen erosion. Therefore, no matter what vegetables are planted, root culture is the key factor to ensure vegetable healing.

Rooting is not as simple as watering and fertilizing at will, just using fertilizer with rooting effect. Today, I will bring you a method of planting, raising and preventing diseases. Potassium fulvate+Bacillus subtilis, or alginic acid+Bacillus subtilis and mixed organic fertilizer are used as fertilization or root irrigation, so as to achieve the goal of growing roots, preventing diseases and increasing efficiency.

Fourth, pay attention to soil permeability. There is a lot of rain in summer, and the soil surface layer is the easiest to harden and agglomerate, which is very unfavorable to the growth and development of roots. Maintaining soil porosity and permeability is the key concrete measure to improve root system, but many growers are also the easiest to ignore these processes. Therefore, in summer, whether after rain or watering, we should turn over the soil in time and plow diligently. First, the water in the soil can evaporate quickly; Second, drought temperature can cut off soil moisture evaporation and maintain soil moisture; Third, it can improve the permeability of soil, which is beneficial to the absorption and growth of roots.

5. Pay attention to the prevention and control of various pests and diseases. Summer is the season with the most serious pests and diseases. Vegetables such as tomatoes, peppers and kidney beans are prone to diseases such as epidemics, viral diseases and brown spot. Once found, it must be prevented and controlled in time. Insects can choose acetamiprid, trichlorfon, emamectin benzoate and other drugs. If you don't want to use pesticides, you can choose tobacco to make tea and topdressing plant ash.

For diseases, targeted drugs such as aminoglycosides, ningnanmycin and metalaxyl can be selected. If you don't want to use pesticides, you can choose some biological agents. Whether it is pests or diseases, it is too late to prevent them in time when they are first discovered.