Summer heat is coming, and temperature is an important factor affecting plant physiological processes, which can easily lead to poor vegetable growth, high-temperature obstacles, and severely affect the healthy growth of plants, causing physiological and biochemical disorders.
High temperature can damage plant physiology by changing the cell membrane structure, which is the main part affected by heat damage.
Protein denaturation: native protein → denatured protein → aggregated protein.
High temperature can hinder physiological and biochemical processes. When the temperature is higher than 35°C, stomata close, and roots, leaves, and fruits all exhibit high-temperature obstacles. Shallow roots die, leaf photosynthesis stops, and fruit coloring becomes difficult.
High temperature dulls enzymes related to respiration, resulting in a lack of metabolic substances, a decrease in protein synthesis, the plant body is in a state of hunger, and the accumulation of toxins increases, accelerating aging.
Temperature causes the stomatal opening to decrease, and transpiration decreases accordingly, affecting the transport of mineral ions and the demand for water in plants.
How can crops grow normally under the threat of high temperature?
1. Timely irrigation and timely cooling. Timely irrigation can improve the field microclimate and reduce the temperature between plants by 1-2°C. Dryland crops can use sprinkler facilities or sprayers to spray water directly on the crop stems and leaves, maintaining the balance of water in the plant body by cooling and humidifying.
2. Strengthen field management. After watering, timely hoeing and soil conservation can improve the drought resistance of crops. Reasonable fertilization and weeding can improve the nutritional status of crops, enhance the ability to resist high-temperature hazards, and avoid and reduce the harm of high temperature.
3. Use sunscreen products. By applying Dora KelpReal to crops, induce plants to produce resistance, and greatly improve the drought and high-temperature resistance of crops.
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