The rare ornamental flower - the cultivation technique of Strelitzia reginae
Strelitzia reginae, alias bird of paradise flower, flower of the bird of paradise. Native to southern Africa, it is cultivated in many subtropical and warm temperate regions of the world. This flower has the reputation of the king of fresh cut flowers and is very popular at home and abroad. It is a flower with great economic value. Cultivation highlights: Strelitzia rejoices in a sunny, warm and humid climate. The optimum temperature for growth is 18 to 24°C. It is not tolerant to cold. Although it is tolerant to drought, it must not be excessively dry. Sustained high temperatures can cause physiological problems and flower buds to die off. Soils with deep soil and well-drained organic-rich sandy soils are preferred, with a pH of 5.5-6.5. The flower is cultivated in alkaline soil and the yellow leaves are dying until they are rotted. Shed planting technology: Strelitzia reginae is produced as a cut flower and generally planted in a plastic greenhouse. Before the planting, the soil should be disinfected, and the soil should be ploughed by deep plowing and sufficient organic compost should be applied to open the drainage channels so as to facilitate timely drainage in the rainy season. In the greenhouse, plants can be planted from March to November, with a spacing of 80 to 120 cm and 9000 to 13500 plants per hectare. It can also be densely planted first, and transplanted after 3 to 4 months. More than two-year-old healthy seedlings or ramets were used for planting seedlings. The seedlings were soaked in water for 1 hour before colonization to increase the survival rate. Planting plants that have been planted have a diameter of 60 to 100 cm. The planting should not be too deep. The buds at the base of the plant should be used for germination. Post-planting management: After the planting, pour enough water to set the roots. Water once a day in the first week. After seeing it, it will be poured. It should be determined depending on the climate and soil conditions. Keep the soil slightly damp and not dry too much. Strelitzia reginae is more fertile than the growth period. Before planting, sufficient base fertilizer should be applied. Before and after flowering, it is necessary to fertilize the fertilizing material. The principle of “diligent application and thin application†should not be used together with several fertilizers. Light and temperature have a great influence on the growth and flowering of Strelitzia reginae. The stronger the light is, the more favorable it is for flowering and flowering. However, when the sun shines, the leaves are easy to yellow. Care should be taken to cool and ventilate the shade in summer. Especially during the flowering period, the temperature should be controlled. If the temperature is too high at night, the formation of flower buds will be inhibited and should be controlled between 15 and 24°C. Below 5°C, the plants will stop developing, and it is also necessary to cover the winter to prevent freezing. Strelitzia reginae is easy to cultivate and rarely causes pests and diseases. However, poor drainage, seasons of the rainy season and excessive plant size can easily lead to disease. Open drains, remove diseased leaves, and draw clean water to reduce or avoid disease infections. The pests mainly include chafers, scale insects and bag moths, which can be manually captured or controlled by medicaments. Planting techniques: Strelitzia reginae can also be used for potted planting. Its soil requires good drainage and is rich in organic matter. It can be placed in full sunlight in spring and autumn, and it needs to be moved into the greenhouse and provide sufficient light in winter. During the growth period, the rot was applied once every half month and the superphosphate was applied 2 to 3 times during flowering. Adult Strelitzia reginae for 2 years. Post-plant management and pest control in pots are similar to those in sheds. Reproductive technology: Strelitzia reginae is easy to cultivate, with less investment and good efficiency. According to its physiological characteristics, seed propagation and asexual isolation are currently used for breeding. Tissue culture has also been successful.