Over the summer management is the biggest technical difficulty in the cultivation of Cyclamen. In the summer, in the Zhejiang area, the high temperature period has entered from late June to early September. At this time, in an ordinary plastic greenhouse, the temperature can reach 47 °C. At this time, it is easy for cyclamen to enter the dormancy period. Even if it breaks the dormancy period, its resistance is greatly weakened, and the outbreak of pests and diseases is frequent. Moreover, the physiological functions of cyclamen during this period have been greatly changed. Therefore, there must be greater adjustments in fertilizer and water management, temperature and humidity management, and light management. The over-hing period is the key period for bulbar enlargement and flower bud differentiation and accumulation in Cyclamen, and the success or failure of over-summer management is directly related to the growth of Cyclamen.
The performance of Cyclamen over summer
1. The stress resistance of the plants was dramatically reduced.
A. Frequent outbreaks of disease.
a. Bacterial diseases (bacterial soft rot, bacterial leaf rot).
b. Anthrax disease: It is prone to spread under high temperature and high humidity conditions. The incidence of upper onset watering is higher.
c. Vascular bundle disease: Common soil-borne fungal diseases. Fusarium invades the root system at the seedling stage or in the initial stage of the upper basin. Usually occurs in a small amount from May to June. The possibility of an outbreak occurs from August to November, mainly by the medium. Disinfection of utensils is not thorough, and the control of the environment is not strict, resulting in improper management of fertilizers and water.
B. Decline in salt and drought resistance.
Summer temperatures are high. Fertilizers suitable for growth in cyclamen have just been used. Due to the large amount of water loss at noon, the EC value in the soil has increased dramatically and soon exceeded the maximum patience, thus causing damage to cyclamen. As the daily variation of the EC value is too great, the cyclamen's tolerance for salinity is relatively narrow. Therefore, during the summer, the fertilizer concentration can be reduced by half, but the frequency of fertilizer application can be doubled.
Summer Cycling Countermeasures
1. Creating a suitable environment Considering the suitable environment of Cyclamen, wild cyclamen grows mostly in the shade between hills and shades. Therefore, it is best to create a good living environment for it.
In general, temperatures above 30°C and illumination above 40,000 LUX would cause harm to cyclamen. Continuing for more than 35°C for a few days, cyclamen can easily enter a dormant state, resulting in an indefinite extension of the maintenance cycle.
For shading, as long as the two shading nets can reach the requirements, but when the light is not strong, it must be opened in time, which is conducive to cooling the ground (long-wave radiation radiation) and ventilation. When shade is not allowed to overshadow, or cyclamen is easy to grow, resistance weakens.
There are many ways to cool down, and shading is one of them, but it must be allowed to have a certain height from the plastic film, and it cannot directly cover the plastic film in the greenhouse. In addition, such as micro fog, water shower is also a good method. However, the negative effects brought about by evaporation and cooling of water cannot be ignored. The rapid increase in air humidity in greenhouses has caused Cyclamen to face the threat of disease outbreaks. Therefore, strengthening ventilation (including forced ventilation) and preventing pests and diseases are especially important. important.
The performance of Cyclamen over summer
1. The stress resistance of the plants was dramatically reduced.
A. Frequent outbreaks of disease.
a. Bacterial diseases (bacterial soft rot, bacterial leaf rot).
b. Anthrax disease: It is prone to spread under high temperature and high humidity conditions. The incidence of upper onset watering is higher.
c. Vascular bundle disease: Common soil-borne fungal diseases. Fusarium invades the root system at the seedling stage or in the initial stage of the upper basin. Usually occurs in a small amount from May to June. The possibility of an outbreak occurs from August to November, mainly by the medium. Disinfection of utensils is not thorough, and the control of the environment is not strict, resulting in improper management of fertilizers and water.
B. Decline in salt and drought resistance.
Summer temperatures are high. Fertilizers suitable for growth in cyclamen have just been used. Due to the large amount of water loss at noon, the EC value in the soil has increased dramatically and soon exceeded the maximum patience, thus causing damage to cyclamen. As the daily variation of the EC value is too great, the cyclamen's tolerance for salinity is relatively narrow. Therefore, during the summer, the fertilizer concentration can be reduced by half, but the frequency of fertilizer application can be doubled.
Summer Cycling Countermeasures
1. Creating a suitable environment Considering the suitable environment of Cyclamen, wild cyclamen grows mostly in the shade between hills and shades. Therefore, it is best to create a good living environment for it.
In general, temperatures above 30°C and illumination above 40,000 LUX would cause harm to cyclamen. Continuing for more than 35°C for a few days, cyclamen can easily enter a dormant state, resulting in an indefinite extension of the maintenance cycle.
For shading, as long as the two shading nets can reach the requirements, but when the light is not strong, it must be opened in time, which is conducive to cooling the ground (long-wave radiation radiation) and ventilation. When shade is not allowed to overshadow, or cyclamen is easy to grow, resistance weakens.
There are many ways to cool down, and shading is one of them, but it must be allowed to have a certain height from the plastic film, and it cannot directly cover the plastic film in the greenhouse. In addition, such as micro fog, water shower is also a good method. However, the negative effects brought about by evaporation and cooling of water cannot be ignored. The rapid increase in air humidity in greenhouses has caused Cyclamen to face the threat of disease outbreaks. Therefore, strengthening ventilation (including forced ventilation) and preventing pests and diseases are especially important. important.
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