In winter, some of the cold-resistant flowers and bonsais can be allowed to outdoor in winter, but do not ignore the cold and warmth of these flowers and trees, especially in the outdoor winter potted plants, because the low temperature is easy to freeze the basin soil, frostbite roots. For the southern species to transfer seedlings and perennial flowers that are not tolerant to cold, antifreeze measures must be taken to avoid cold damage.
Antifreeze measures to plant flowers and trees such as peaches, plum blossoms, waxy plums, zelkova leaves, magnolias, etc., can be used straw, wheat straw, rags, old cotton and other warmth to protect the stalk parts warm. In the early winter, ditches can be made around the roots of these flowers and trees, poured with fertilizer and then soiled to protect the roots. It is also possible to coat white flowers and trees branches that are overwintering outdoors, which not only effectively prevents freezing damage, but also prevents and controls diseases and insect pests that remain on branches. However, it should be noted that with the whitening agent formulated with quicklime, quicklime must be converted to hydrated lime before use, otherwise it will burn flowers and trees branches. The proportion of whitening agent: 36 to 40 parts of water, 10 to 20 parts of quicklime, 1 to 2 parts of salt, 2 parts of clay, and 2 parts of lime sulfur stock solution. Quickly dissolve the lime and salt, mix with lime sulfur and clay. Stir well and whiten. It is advisable to whiten the dose to prevent it from flowing down.
Cold-resistant herbal flowers antifreeze measures Cosmos, cineraria, pansy, kale, poppy, etc., in case of severe cold or rain and snow, can be covered with plastic film, warm grass and other warm objects, until the weather is clear Open up so that the seedlings are short.
Antifreeze measures for bulbous flowers Canna flower, dahlia and other bulbous flowers need to be covered in outdoor underground. They can be covered with compost soil, rot leaves, and subtilis. Pay attention to make bulbs below the frozen soil layer, otherwise they will freeze the bulbs. Germinated sprouts. Note that the cover must not contain pathogenic eggs.
Antifreeze measures for tall garden plants High garden plants such as high stalk privet and yellow ridge cypress are wrapped around their trunk and large branches, and are wound in a clockwise direction from the bottom to the top of the rope at a width of 10 to 20 cm. The film can prevent freeze damage to the trunk and large branches of the plant.
Compared with cold-resistant potted plants, antifreeze measures are better for cold-resistant potted plants and bonsai tree outdoor insulation. The best method is to bury the pots below the outdoor permafrost so that the root system is free from freezing damage; it can also be covered with vegetation ash, which not only has good insulation effect , And there are no side effects on flowers and trees. In those years, cuttings of flowers and plants survived. Because of their small size and poor resistance to cold, in addition to allowing the main branches and leaves to receive sunlight, the remaining branches should be covered and covered with warmth, and some of the potted soil should be covered with plant ash or other insulation to keep warm.
One of the other antifreeze measures is the timely filling of frozen water. When there is a lack of water around the seedlings in winter, it is prone to freeze damage. The specific heat of the water is greater, and more heat can be absorbed during the day to increase the ground temperature. Therefore, it is necessary to timely seal the frozen water before the soil is frozen. The second is to increase organic fertilizer. Outdoor winter plants and flowers, dormant in winter, no need to fertilize. However, some flowers and trees bloom early in the winter or early spring, such as waxberry, plum, blue peach, and forsythia. For these flowers and trees, some organic fertilizers can be applied in the early winter, such as livestock (avian) excrement and rot leaf compost soil. The roots of the flowers and trees can be kept warm, and the second can increase fertility, increase nutrition for pregnant buds and flowering flowers, and flower buds are good. Digging 3 to 4 holes in the outer part of the canopy, with a depth of 50 to 100 cm, applying horse manure, smashing the grass and other breweries and fertilizers to increase the ground temperature. Organic fertilizers release heat and increase soil fertility. In combination with fertilization, the plants are cultured to cover the base of the roots, forming a conical small mound, which can protect the bases that are prone to frost damage and can safely pass winter. Third, pay attention to pruning. Due to the cold in winter, the pruning of winter dormancy plants (roses, crape myrtle, etc.) should be postponed until the spring temperature rises and the flowers and trees have not yet been budded to prevent the shoots from being frostbite and affecting growth. Pruning can also be carried out in the current year, but the branches should be properly left longer. When the temperature rises, it will be cut again and the long and frostbite sections will be cut off. Evergreen flowers and trees (bush melons, dwarf flowers and cypresses) should be timely pruned, which can increase winter ornamental value, but also reduce transpiration and improve plant resistance to cold.
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