Greenhouse Potted Flower Management for Outdoor and Indoor Transition
A comprehensive introduction to the common knowledge of flower cultivation, the management of greenhouse potted flowers for outdoor and indoor transition. Next, the editor will introduce to the netizens.
Greenhouse flowers are not cold-resistant. In late spring every year, due to the high temperature in the greenhouse, they need to be moved outdoors for cultivation and care (referred to as outdoor management in this article); in late autumn, due to the lower external temperature, they need to be moved indoors for maintenance (referred to as indoor management in this article). The climate factors such as temperature, light, and humidity in the greenhouse are significantly different from those outdoors, and this difference can cause the flowers to beunadaptable during the process of moving in and out, thus affecting the normal growth and development of the flowers. If certain measures are taken during the outdoor and indoor transition, and meticulous management is carried out, these disadvantages can be overcome, thus promoting the normal growth and development of the flowers.
1 Time Selection for Outdoor and Indoor Transition
Generally, after the late frost in spring, when the minimum night temperature is greater than 5°C, the flowers can be considered for outdoor transition; in autumn, when the late frost is approaching and the minimum night temperature is less than 5°C, the flowers need to be moved indoors. Taking Shandong as an example, flowers are moved outdoors around April 20th, and moved indoors around October 24th; in the Beijing area, the phenological period is about 8-10 days later than Shandong, so the corresponding outdoor and indoor transition times should also be 8-10 days later; in the Yangtze River Valley, it is about 8-10 days earlier. The specific time for outdoor and indoor transition needs to be decided based on the current weather forecast, and the phenological period is not fixed every year, sometimes the difference can be as much as 7-10 days, so the specific transition time should also be flexible according to the current phenological conditions.
When moving outdoors, flowers from low-temperature greenhouses are moved earlier, such as primroses, camellias, cinerarias, fuchsia, and one-leaf orchids; 4-5 days later, flowers from medium-temperature greenhouses are moved, such as cyclamen, carnations, and geraniums; and finally, flowers from high-temperature greenhouses are moved, such as crotons, calathea, and tropical orchids. The order of moving indoors is exactly the opposite.
2 Sanitary Cleaning and Pest and Disease Control
Due to the climatic differences between the greenhouse and the outdoors, the flowers' resistance may decrease after moving outdoors and indoors, making them more susceptible to pests and diseases, which requires strengthened pest and disease control. It is necessary to thoroughly clean the greenhouse and the shade棚 outside, leaving no decaying branches or leaves. After cleaning, it is essential to spray fungicides for disinfection. Common fungicides include 50% thiophanate-methyl wettable powder at a dilution of 500-1000 times. Additionally, using 30% carbendazim compound smoke fumigation after moving indoors also has a good effect. The higher temperature in the first week after moving indoors can easily cause a surge in greenhouse whiteflies and aphids, and timely spraying of 40% omethoate at a dilution of 500-1000 times or 5% brom**ate at a dilution of 800-1000 times is necessary according to specific conditions.
3 Temperature Adaptation Training
Temperature is the main climatic factor determining whether flowers can successfully transition during the greenhouse flower outdoor and indoor process, so it is necessary to adapt the greenhouse flowers to temperature changes. During the outdoor transition, start opening windows for ventilation and cooling 15-20 days in advance. Initially, open a few windows during the day and close them at night. Then gradually increase the number of windows and the duration of ventilation until all greenhouse ventilation windows are fully open and remain open day and night. When moving indoors, all greenhouse ventilation windows should be open, and as the external temperature gradually decreases, the number of closed windows should be increased until all are closed.
4 Water Management
The air humidity inside and outside the greenhouse is quite different. Before moving outdoors, the soil should be thoroughly watered; after moving out, water immediately and spray water on the shade棚 and flower stands to increase air humidity. Conversely, do not water the day before moving indoors, and water only after moving indoors to avoid increasing the humidity inside the greenhouse and causing the spread of diseases.
5 Fertilizer Management
When moving greenhouse flowers outdoors, it is combined with potting changes, replacing nutrient soil, applying base fertilizer, and pruning some old, dry, and diseased roots. The application of base fertilizer should mainly consist of well-rotted chicken manure and oil slag, with an appropriate addition of nitrogen-rich compound fertilizers. After moving indoors, apply some phosphorus and potassium-rich compound fertilizers to the soil and use 0.5% potassium dihydrogen phosphate for foliar feeding, which can improve the photosynthetic efficiency of the leaves and enhance resistance.
6 Placement of Potted Flowers
After moving outdoors, greenhouse flowers are generally placed in the shade棚 for care, with a 50%-70% light transmission rate遮阳网 providing good results. Some cacti native to tropical areas do not need to be moved outdoors, and shade-loving flowers can be placed in the middle of the shade棚, while sun-loving flowers can be placed on the southern edge of the shade棚. When moving indoors, place high-temperature greenhouse flowers in the warmer central part, and some low-temperature greenhouse flowers on the edge of the greenhouse. At the same time, care should be taken to ensure that greenhouse flowers do not shade each other.
The above content about the management of greenhouse potted flowers for outdoor and indoor transition is shared in full, hoping it can help you, and at the same time, I hope everyone will come to see more green plant flower experience and common sense!