China Naming Network - Eight-character Q&A - High temperature in summer has a great influence on vegetable planting. How should vegetable farmers respond?

High temperature in summer has a great influence on vegetable planting. How should vegetable farmers respond?

Vegetables can only grow and develop under suitable temperature conditions. If the temperature is high in summer, the growth of vegetables will stop or be delayed, which will affect the good quality of fertilization. For example, under the high temperature in summer, radish will become smaller, fiber will increase, lotus root will not be tight, it will be loose, and leaves will be thick and hard. The sun in summer is so poisonous that even people's skin can't stand it and get sunburned. The same is true of vegetables, especially some green leafy vegetables. Facing the high temperature in summer, the leaves of vegetables will be scorched by the sun, and gray spots of different sizes will appear.

High temperature weather can also cause crops to grow slowly or stop. The suitable growth temperature of many crops does not exceed 33℃, but if the high temperature exceeds the growth temperature of vegetables, it is not conducive to the growth of vegetables, resulting in delay or even no growth. Crops in the shed are also prone to strong light burning leaves, so we should spray some anti-burn and anti-sun-exposure things, such as calcium fertilizer for fruits and vegetables (good sugar alcohol calcium fertilizer), Fenglihui calcium magnesium fertilizer (sugar alcohol calcium magnesium fertilizer) and Xianjian (good plant immune agent).

The leafy vegetables of water spinach can also be shaded artificially, or they can be left untreated and watered frequently. For example, side dishes in rural areas are usually watered every night. Without shade, they should be planted in places that avoid natural full sunshine. When choosing the watering time in the open field, it is best to water it before 10 in the morning. First, the evaporation is too high, which is not conducive to the absorption of crops and vegetables. Second, high water temperature and low temperature are not good for vegetable growth.

Replenishing water: This is a routine operation of vegetable planting in summer. Water should be replenished before and after sowing and at seedling stage. If the temperature is too high, lack of water will cause the leaves to dry and rot. It is recommended to use spray to replenish water, which will not cause excessive water accumulation. Pruning the branches and leaves of crops in time can speed up the air circulation between crops, promote the upward growth of crops and reduce the temperature in the garden; Strengthen field management, timely intertillage and weed control, loosen soil and conserve moisture, prevent and control pests and diseases, remove old and dead leaves, reduce nutrient consumption and ensure nutrient supply of branches and leaves.