Peony is the traditional name of our country. During its growth and reproduction, it will encounter various pests and diseases, or cause the stems to fall off, the leaves to be incomplete, or to form various lesions on the branches and leaves, and even cause withered. Death affects the ornamental value of flowers and causes economic losses.
In recent years, the pollution of the air has become increasingly serious. The diseases of the peony leaf have also been aggravated and the onset of the disease has advanced, causing the peony to fall off in advance. Autumn has been found to be very serious, affecting the growth and development of the second year. Although this issue has attracted a lot of attention and has taken a variety of prevention and control measures, the effect is not very satisfactory. Through observation and practice, the authors have proved that proper shading in summer can prolong the effective growth period of peony, reduce leaf diseases, and reduce autumn findings, which is conducive to the growth of peony.
Intercropping high-stalk crops with peony can not only play a role in shading, but also increase economic income. Here is an illustration of Peony and Sunflower.
Sunflowers are often exposed in the open in the north. They are sown with seeds in early April. The height is basically the same as that of the peony in early May. Only in June can the shading effect be achieved. It is just a matter of staggering the vigorous growth of peony and the best viewing period, with few sunflower diseases. It is one of the ideal intercropping crops of peony.
The specific approach is: sunflowers are planted in ridges and ridges, peony is 60 to 70 centimeters in spacing, a row of three rows, each row of sunflowers is planted in two rows, and the spacing is 2 meters. They can both effectively shade and maintain good ventilation. Throughout the growth process, there is a strong struggle for water and fertilizer, which is very beneficial to the growth of peony. Through experiments, the incidence of shady Peony leaf disease is low, the degree of harm is small, and the green leaves are kept for a long time, which is conducive to the growth in the second year.
Ventilation is one of the most important components in a successful greenhouse.
If there is no proper ventilation, greenhouses and their growing plants can become prone to problems. The main purposes of ventilation are to regulate the temperature and humidity to the optimal level, and to ensure movement of air and thus prevent build-up of plant pathogens (such as Botrytis cinerea) that prefer still air conditions. Ventilation also ensures a supply of fresh air for photosynthesis and plant respiration, and may enable important pollinators to access the greenhouse crop.
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