Matters needing attention in the culture of summer plum

I. Disease and pest control

The main insect pests of summer plum are scale insects and aphids, and the diseases are black spot and anthrax, especially in high temperature season, so it is necessary to strengthen management in summer.

Second, pay attention to the wind

Chimonanthus przewalskii is afraid of the wind, so it is necessary to choose the leeward when it is cultivated in the open field, otherwise the leaves will rust due to mutual friction. If the wind is in the florescence, it will lead to the bud is not easy to open, petals will not stretch and other phenomena, so that the flower plant as a whole is not coordinated and beautiful.

Third, timely pruning

Chimonanthus chinensis has strong branching power, and timely pruning is beneficial to promote more flower branches to germinate and blossom more. Flower branches are usually pruned between March and June and stop pruning after July. Pruning flower branches is mainly aimed at disease and insect branches, withered branches, cross branches, over-dense branches, etc., and cutting off the upper branches is to promote branches.

The above are the breeding methods and matters needing attention of Xiayamei arranged by the editor. I hope you can also raise fresh, elegant and beautiful summer plum after reading it!

Culture methods and matters needing attention of summer plum

Culture methods of summer plum: temperature and light

Summer plum can survive winter and summer normally in Jiangnan and other places, and can withstand short-term high temperature of 40 ℃ and severe cold of-15 ℃. Like warm and humid, the sun is not strong growth environment, in full light leaves turn yellow, poor growth, so to avoid direct sunlight, long-term exposure to the sun, the right amount of light can be.

Watering

Chimonanthus is resistant to drought and waterlogging, and the soil can be kept semi-moist. Drainage in time during the rainy season. But in summer, there can be no shortage of water, so as not to form dry and whitish patches on the leaves and affect the formation of flower buds. In the flowering period of summer plum, the amount of water must be reasonable. If there is too little water, the flowers will bloom irregularly; too much watering will easily lead to falling flowers and buds.

Soil

It is suitable to grow in fertile and loose sandy soil with good drainage. The basin soil can be prepared with the same amount of sand slope and coniferous humus.

Fertilizer application

Like fertilizer, timely fertilization can promote flower bud differentiation, bloom more, apply leaf fertilizer twice in spring, apply compound fertilizer every half a month from the end of June to the end of June, promote the formation of flower buds, fertilization is mainly phosphorus and potassium fertilizer, appropriate amount of nitrogen fertilizer. Cake fertilizer can be applied once after cool autumn to enrich flower buds. From anthesis to defoliation, topdressing was applied for 2-3 times. Apply thin horseshoe water again before winter to provide nutrients for flowering.

Matters needing attention in summer plum culture pay attention to the control of diseases and insect pests

There are mainly scale insects and aphids, black spot and anthrax, especially in high temperature season.

Pay attention to the wind

Chimonanthus przewalskii is afraid of the wind, so it is necessary to choose a leeward place for open field cultivation. If the windbreak is not in place, the leaves will rust due to mutual friction. If exposed to the wind in the flowering period, the bud is not easy to open, the petals will not stretch, and so on.

Timely pruning

Chimonanthus chinensis has strong branching power, and timely pruning is beneficial to promote more flower branches to germinate and blossom more. It is suitable for pruning after the flower fade to before the leaves, usually between March and June, and stop pruning after July. Cut off disease and insect branches, withered branches, cross branches, over-dense branches, etc., annual branches retain 2-3 pairs of buds at the base, cut off the upper branches, in order to promote branches, after the new branches grow two or three pairs of leaves, they will be coring once.

Culture management of summer plum

Summer plum (scientific name: Sinocalycanthus chinensis), also known as peony wood, yellow loquat, etc., belongs to the "authentic" Prunus mume family. Summer plum is mostly born in hillsides or valleys at an altitude of 600 to 1100 meters above sea level. the flowers are large and beautiful and have great ornamental value. It usually blooms in early summer.

The rare wild flowers endemic to China are listed as national second-class protected plants and are Tertiary relict species.

[culture method] sowing and breeding. The seeds mature in mid-late October and can be picked when the pot-shaped fruit sac changes from green to yellowish brown and achenes are purple-brown. After picking, the seeds should be removed and prepared, and the seeds should not be too dry when stored. Soak the seeds in cold water for 24 hours and 28 hours before sowing in early spring to make the pericarp swell and sprout ahead of time. Sowing should be covered with grass to moisturize, generally about half a month can be unearthed, two months can basically come out. After the seedlings come out, remove the grass, and then build a shed for shade to prevent the seedlings from being burned by the scorching sun. Enter the summer, the bed and leaf surface should often spray water, improve air humidity, reduce the bed temperature, in order to facilitate growth. Generally, the height of the seedlings in the same year can reach 30cm, the root length is 20~25cm, and the aboveground part has 3 branches, which can be transplanted and planted in the bed for one year. Generally, the seeding seedlings can bud and blossom in 4-5 years. In addition, its root sprouting can be used for ramet culture. When ramet, dig out the plant with a shovel, shake off the soil from the root, divide the sprouting tiller into several small plants with a sharp knife or branch shears, each small plant should have 1-2 main branches, and then leave the ramet trunk at 10cm to cut off, and then plant. Ramet should be carried out after defoliation in autumn to before sprouting in spring. [cultivation management] the open field cultivation should choose the environment with moist and weak light. When transplanting, the big seedlings should bring soil balls, and the planting depth is the same as that in the original place. Planting in the lowlands should be filled with higher soil to prevent stagnant water. When the soil is too alkaline, we should use guest soil or improve it into neutral soil. The rotten organic fertilizer was applied as base fertilizer before planting, and enough water was irrigated after planting. Turn after the flower to top up the fertilizer, once a year. Pay attention to timely drainage in the rainy season. Turning under the trees can be carried out in winter to improve the soil and facilitate the growth of plants in the coming year. If there is no seed left after flowering, the residual flowers can be cut off in time, and the withered branches, weak branches and over-dense branches can be thinned and deleted at the same time. Potted plants can be put on the pot before spring germination, and the potted soil should be loose and fertile. Watering thoroughly after potting, watering properly after resuming growth, and keeping half-moisture state of potted soil. Watering before and in full bloom must be appropriate. More water is easy to drop flowers and buds, while less water means uneven flowering. Leaf spreading fertilizer was applied twice in spring and compound fertilizer was applied twice in May. Phosphorus and potassium fertilizer was the main fertilizer, and nitrogen fertilizer was appropriate. From anthesis to defoliation, fertilizer should be applied for 2 or 3 times. After the flowers fade, they are pruned, mainly sparse.