Breeding method of safflower silver birch
In courtyard landscaping and home greening, safflower silver birch is popular for its flame-like inflorescences and silver-gray leaves. Although this evergreen tree native to Australia has ornamental value, many gardeners often cause poor flowering due to improper maintenance. This article will systematically analyze its cultivation points from six dimensions. Environmental regulation: Temperature and light management Temperature control skills Red and silver birch adapt to the growth range of 15-28℃ and need to remain above-4℃ in winter. In the northern region, it is recommended to adopt the strategy of planting film covering or potted plants into houses. Wind barriers need to be built for winter in the open air in the Yangtze River Basin. Analysis of light demand: Full sunshine is needed for more than 6 hours in spring and autumn, and sunshade nets are needed for protection during high temperatures in summer to avoid burns to leaves. Indoor cultivation should be placed on a south-facing balcony, and the flower pot should be rotated every half of the month to ensure uniform light reception. Water and fertilizer management: The scientific watering plan for watering and nutrient supply adopts the principle of "seeing dry, seeing wet". It is watered thoroughly in 5-7 days in spring and autumn, 3 days per time in summer with foliar spraying, and the water is controlled to 10-15 days per time in winter. Using acidified water at pH 6.0 -6.5 enhances nutrient absorption. Precision fertilization strategy breeding method of safflower silver birch
Nitrogen, phosphorus and potassium balanced fertilizers (15-15-15) were applied in March, high-phosphorus fertilizers (10-30-10) were applied before flowering, and decomposed organic fertilizers were added in winter. It is recommended to use slow-release fertilizer granules for potted plants, with 50g per square meter. Reproductive pruning: Shape and health management Sowing and breeding points need to be soaked in warm water for 24 hours in spring sowing, and stored in sand for autumn sowing. The sowing depth is controlled to be twice the seed diameter, the substrate ratio is peat: perlite =3:1, and the constant temperature is maintained at 25℃ to accelerate germination. Trim and modeling technology Trim the residual flowers immediately after flowers, retaining 2-3 bud points. The main trunk is shaped using the "top cutting and side promoting" method, and the annual pruning amount does not exceed 1/3 of the crown. Remove inner chamber branches and cross branches in time to improve ventilation. Disease response plan for pest and disease control system