The roots of fruit trees are the organs most sensitive to external conditions. The optimum temperature for root growth of most fruit trees is between 13 °C and 26 °C. When more than 30 °C or below 0 °C, growth stops. Experiments show that the summer surface temperature of orchard orchards It is 3°C~5°C lower than the Qingyuan Garden. The grass and grass cover creates an ecologically optimal stable layer for the root system, thereby prolonging the growth time of the root system and promoting the absorption and synthesis of nutrients in the tree.
Watering at the right time. The first half of August is the longest period of high temperature heat damage throughout the year. The timely watering of the apple, pear and peach can not only improve the soil water supply and the demand for moisture in the fruit expansion, but also alleviate the damage caused by drought and high temperature heat damage to the fruit trees. Watering should not be flooded with large water, it should be appropriate to use small water irrigation.
The tree is sprayed with water. When the temperature reaches 35 °C, the tree can be sprayed with water and added with a new high-fat film to cool and humidify after 5 pm, improve the orchard microclimate, and alleviate the damage caused by high temperature and direct sunlight to the trees and fruits.
Pest control. The high temperature and drought insects are flooding, and the rainy and continuous diseases are outbreaks. It is necessary to pay attention to the prevention and control of pests such as apple red spider, two-spotted spider mite, apple leaf curler, and pear hibiscus in the orchard. Spraying new high-fat film combined with targeted insecticide at the beginning of the disease It can block the insect's sense of smell, inhibit the replication of pathogens, reduce its resistance and dosage, and enhance the effect of pesticides.
Build a protective net. There are bird and hail-prone areas, which can be built with protective nets to protect against bird damage and hail damage, as well as to reduce damage to fruits and trees caused by direct sunlight.
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