Propagation and Pest Control and cultivation techniques of Rabdosia oleifera

Propagation and Pest Control and cultivation techniques of Rabdosia oleifera

Aquilegia vulgaris is a perennial herb of Ranunculaceae. The plant height is 30cm to 60cm. The basal leaves have long stalks, the basal leaves and the lower leaves of the stem are 2-Ternate compound leaves, the leaflets are 2-3-lobed, and the margin of lobes is crenate. Uppermost cauline leaves subsessile, narrowly 3-lobed. Cymes with several flowers, large flowers, usually blue, white, red, pink, etc., drooping. Sepals 5, petals 5, spur inward curved into hooks. Follicles, seeds black. The florescence is from May to July.

Originated in Europe, a large number of introduction and cultivation in China. It has strong resistance, good adaptability, likes cool, moist and sunny environment, and has excellent cold resistance, but is not resistant to high temperature and strong light. The suitable temperature for growth was 15 ~ 20 ℃. Like loose, fertile and well drained sandy loam. This species is widely used in gardens all over the world. it is often used in flower borders, flower beds or potted plants. there are single-petal varieties and a large number of double-petal varieties. It is an excellent flowering herb.

Sowing time and substrate selection

At present, all the hybrid seeds sold on the market are hybrid seeds with high germination rate, which is generally carried out in spring and autumn, but plants generally need low temperature vernalization to blossom. Therefore, most of the spring sowing seedlings can not blossom and bear fruit until the next spring. The substrate should choose loose, permeable and well-drained soil, fine peat, peat soil or rotten leaf soil can be selected, a large number of seeding plates can be used to raise seedlings, and a small amount can also be sown in flowerpots.

① close-up of the flower of European custard

② close-up of the flower of European custard

Flowering plants of ③

④ leaves of Eurya vulgaris

Sowing and raising seedlings

Because the seeds are small, they are mostly sown, and the cover of the soil should not be too thick. Just cover the seeds. Water by soaking or watering with a fine spray pot. Do not spray with heavy water to prevent the seeds from being washed away. After sowing, it can be maintained in a semi-shady place, which can emerge in half a month, control moisture after emergence, prevent overgrowth, and pay attention to and time to cripple and weak seedlings. After emergence, the light can be gradually increased to facilitate the cultivation of strong seedlings. The seedlings have 2 or 3 true leaves, and pay attention to water control. Transplanting can promote root growth and enhance stress resistance.

Colonization

The seedlings can be planted in flower borders, flower beds and flowerpots with a height of 5 cm. The rows of plants in the open field are spaced between 25 cm and 40 cm. Flower beds and flowerpots can be planted closely. Transplanting with as many soil blocks as possible is conducive to slow seedling, planting to cover the rhizome is appropriate, too shallow and too deep are not conducive to plant growth. Immediately after transplanting, water should be watered once, and no flood should be sprayed to prevent the soil from splashing on the leaves and causing diseases.

Fertilizer application

When planting, apply sufficient base fertilizer, apply high nitrogen fertilizer every 10 days after slow seedling, and apply phosphorus and potassium fertilizer after flower bud differentiation to facilitate flowering, stop fertilization after autumn, generally fertilize 3-5 times a year, the appropriate fertilization concentration is 1200 times, avoid concentrated fertilizer. Fertilization is usually carried out at the same time with watering. Such as fertile soil can also reduce the number of fertilization.

Watering

According to the weather and temperature, most of them do not need to replenish water after planting in the open field, but replenish water in time in case of dry weather and drain in time in case of rainy days to prevent dead seedlings from waterlogging.

Light

This species likes light, but strong light in summer has a certain effect on growth, and it grows better under sparse forest and at the edge of the forest. But it does not grow well under the condition of high temperature and low light.

Pest control

There are few diseases and insect pests, and leaf spot, rust and aphids are occasionally harmed. In the growing season, 50% topiramate 1000 times or 50% chlorpromazine 1000 times can be used to prevent. Aphids can be controlled with 40% dimethoate EC 800-1000 times.

Container cultivation of Brassica oleracea L. for landscaping

Application

This species has many varieties, beautiful flowers, various colors, unique flower shape and beautiful leaves, so it is an excellent ornamental herb. It can be used for flower border landscaping, it can also be planted on the edge of forest, under sparse forest or in flower beds and decorated rock gardens, and potted plants can also be used for courtyard and bedroom beautification.