Summer rose maintenance
The sun is scorching in summer. Can the rose spend the summer safely as the queen of the courtyard? In a high temperature and high humidity environment, problems such as scorched edges of yellow leaves and rotten roots will occur if you are not careful. Mastering scientific maintenance methods can not only help roses spend the summer smoothly, but also accumulate energy for autumn flowers to bloom. Four elements of summer maintenance of roses, intelligent shading and flower protection Although roses are sun-loving plants, the ultraviolet intensity in summer is increased by more than 40% compared with spring. It is recommended to adopt the "three-period shading method": full sunshine before 10 a.m., 50%-70% shading at noon, and natural light is restored after 4 p.m. Shade nets can be used for outdoor planting, and indoor potted plants can be used with gauze curtains. Three-dimensional ventilation to prevent diseases and maintain air circulation can reduce the incidence of diseases and insect pests such as red spiders. It is recommended to create a "three-dimensional ventilation system": keep the horizontal spacing more than 50cm, place it in a stepped manner lengthwise, and prune the cross branches regularly. Circulating fans can be installed on the enclosed balcony for 2-3 hours of forced ventilation every day. Scientific fertilization promotes growth in summer recommends the "1+1 nutrition plan": slow-release fertilizer once a month and foliar fertilizer once every two weeks. When using water-soluble fertilizers, dilute the regular concentration to 1/2, and add EM bacterial solution to increase the absorption rate. When the high temperature exceeds 35℃, the application of solid fertilizers should be suspended. Intelligent watering adopts the "knuckle detection method" to protect the root system: the index finger is inserted into the second joint of the soil, and water when it is dry. It is recommended to use the dipping pot method and complete watering from 6 to 8 a.m. Drainage needs to be done well in the rainy season. A 3cm ceramsite layer can be placed on the bottom of the basin. After heavy rain, the tray can be emptied in time to accumulate water.
By accurately controlling the three major factors of light, ventilation, water and fertilizer, and regularly checking leaf conditions, roses can be maintained to grow healthily even in hot seasons. It is recommended to establish a maintenance log to record daily environmental parameters and plant changes to accumulate valuable experience for the coming year.