Hello flower friends, I am Lao Zhang, summer is coming again, many flower friends consult me in the summer peony need to pay attention to, how to maintain the safety of summer, in fact, the summer peony is very simple, today is divided into two plates to answer, one is a personal maintenance of peony, the second is the maintenance of peony garden, the following goes straight to the theme.
Care of summer peonies:
Peonies are generally cultivated as ground cultivation, potted plants are more difficult, and summer management is the key to successfully raising potted peonies. So, how to make potted peonies safe in the summer, according to lao Zhang's experience, summer management should do a good job of three defenses.
First, the high temperature and strong light in summer will not only affect the photosynthesis of the plant, but also easily increase the evaporation of leaf water, resulting in the wilting of the leaves, dry yellow, scorched edge phenomenon. Therefore, potted peonies must be raised under the shade, 50% of the light is removed, so that the plant receives light before 9 am and after 5 pm. In addition, water should be sprayed frequently around the leaves and pots to increase air humidity and reduce leaf evaporation.
Second, waterproof big rotten root peony likes to humid environment, but because it is a fleshy root, afraid of flooding. In summer, peonies can be watered every 10 days, and should be watered less or no watering on rainy days. In particular, it is necessary to avoid being drenched on rainy days, such as rain, the water in the basin should be poured out in time, and the soil should be loosened in a timely manner to speed up the evaporation of water in the soil. When the summer rainy season comes, drainage measures can be taken to prevent water accumulation.
Third, the prevention of pest damage in summer is the frequent season of potted peony diseases and insect pests, and its main diseases are black spot disease and yellow leaf disease, when the disease is mild, the diseased branches and diseased leaves can be cut off in time and burned; When the disease is severe, foliar spraying should be carried out with 1000 times of the solution of Bacteriocinalis, once every 5 days, until 2-3 courses of treatment. The insect pests of potted peonies are mainly mesenchymal insects, aphids, ants, spiders, etc., if a small amount occurs, they can be removed by brush brushes, and when the number is large, they can be sprayed with 40% oxidized Leguo emulsion 1000 times liquid or 80% dichlorvos emulsion 1200 times liquid, or sprayed directly with a gunner. Peonies can be sprayed in advance to promote the growth of leaf fertilizer, which is conducive to lignification, and the leaves are green and thickened.
The management of peony gardens is different from that of Datian, which requires refined management, and the summer management of peony gardens is a variety of contents, which is the focus of management in the year.
First, fertilizer water management
After entering the summer, the amount of water evaporation gradually increases with the increase of temperature, and the differentiation of peony flower buds enters a critical period, during which the branches and leaves grow vigorously, nutrients accumulate rapidly, and the demand for fertilizer and water of plants increases.
The Yellow River Basin often has "volt drought" before the arrival of the early summer rainy season, when watering should be timely, in June according to the specific situation to water 2 to 3 times, July to August into the rainy season after the general watering, such as excessive rainfall, but also in time to drain the water.
Peony orchards generally do not fertilize in summer, and if there is insufficient fertilizer after flowering in the spring, a small amount of compound fertilizer or foliar spray of 0.2% to 0.3% potassium dihydrogen phosphate can be applied to increase its resistance.
Second, loosen the soil and weed
Loosening the soil and weeding is the most arduous and important work in the peony garden in summer.
The most effective way to weed is to hoe the ground, and it is the whole garden without leaving a gap to hoe, which is commonly known as "one-time net". Hoeing not only removes weeds, but also keeps the moisture tight and breathable. When loosening soil and weeding, pay attention to the following points:
1. The hoe is mainly shallow hoe, the depth is generally not more than 5 cm, commonly known as "spring hoe a plough, summer cut through the skin";
2. The hoeing time is determined by moisture conditions, generally after rain and watering, when the soil moisture is good;
3. Weeding should be "small, early, and". Be sure to remove the weeds before they start to seed;
4. Use herbicides with caution, improper application may hurt peony leaves;
5. Even after the rain, the weeds grow wildly, and the grass should be pulled in time before the ground cannot be hoeed.
In order to completely eradicate weeds, especially malignant weeds, in recent years, many peony gardens have popularized a method of deep ploughing, and the effect is also very good. Specifically, before the weeds flood, all the soil between the rows of the peony garden is turned 20 cm deep, the top soil and the weeds are turned into the ground together, the bottom soil is facing upwards, and the grass roots are picked out. Although this method is more than one time, it is very effective, and a deep turn basically ensures that the weeds will not flood for 30 to 50 days.
Third, pest control
Summer is high temperature and high humidity, which is the high incidence of peony diseases and insect pests.
The main insect pest is grub, which is a general term for scarab larvae and is a stubborn insect pest common in peony gardens. It mainly harms the rhizomes of peonies, peonies and other seedlings, resulting in poor growth of peonies, affecting the ornamental effect, and even causing plant death. At the turn of spring and summer every year, it is the high incidence of grub infestation. The affected plants should be treated with a medicinal solution, and 50% octylthion emulsion 1500 to 2000 times liquid can be selected. Before filling the medicine, a ring-shaped hole should be picked around the root of the peony, so that the liquid medicine is concentrated in the root soil, and the effect will be better.
Peony has fewer summer diseases, occasionally black spot disease, gray mold disease, powdery mildew, yellowing disease, etc., most of these diseases harm the leaves, resulting in poor plant growth, early leaf fall, and even death. To prevent and control these diseases, Bordeaux liquid, triazolone, zinc daisen, bacillus qing and other fungicides are used. Can be used once every half a month, alternately.
In addition to chemical control, peony orchards can also reduce the occurrence of pests and diseases through enhanced management. For example, moderate pruning to enhance ventilation and light transmission, strengthen fertilizer and water management, etc.
Fourth, shade
In special cases, individual peony plants also need to be shaded in the peony garden, and shading is often built on the ground with a solid bracket, and then covered with a shading net with a shading rate of 30% to 70%. Shade can reduce the temperature, reduce the amount of evaporation, maintain the moisture balance of the plant, and help the peony to survive the summer smoothly. The following types of peonies require shade:
1. Introduce domesticated wild peonies.
2. Sow seedlings, especially annual sown seedlings.
3. Peonies planted in abnormal seasons such as winter and early spring.
Thank you flower friends to see here, feel that lao Zhang said reasonable, you can like and pay attention, the most practical knowledge and experience to share to everyone, thank you.